US2734579A - Production from bituminous sands - Google Patents

Production from bituminous sands Download PDF

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US2734579A
US2734579A US2734579DA US2734579A US 2734579 A US2734579 A US 2734579A US 2734579D A US2734579D A US 2734579DA US 2734579 A US2734579 A US 2734579A
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bituminous
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2401Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity

Definitions

  • bituminous deposits such as tar sands
  • bituminous deposits such as tar sands
  • the methods proposed can be generally classified as either mining the deposit with subsequent treatment of the bituminous deposit in a mill or retort with water, solvents, heat, etc., to separate the recoverable petroleum from the sand, or solvent treatments to remove petroleum from the tar sand in place. Neither of these classes has proved commercially successful.
  • oil can be recovered from a solid bituminous deposit by application of heat to the material in place, in Which a part of the deposit is volatilized and driven off, leaving a combustible residue.
  • This combustible residue is oxidized or burned in place by an oxidizing gas driven into the deposit.
  • the hot gaseous products of combustion are forced through the deposit, carrying with them at least a part of the volatilized constituents of the tar sands.
  • the temperature at the zone of combustion in the bituminous body is regulated to lie in the range of approximately 400 F. to about 1,000 or 1,200 F.
  • This liquid can be treated by ordinary refining methods to produce gasoline, kerosense, naphtha, lubricating oil fractions, etc., as is already well-known in the art.
  • the combustion process completely consumes the last residuum from the bituminous deposit, leaving simply the noncombustible sand or the like.
  • it is only a relatively minor part of the combustibles originally present in the tar sands, the least desirable heavy ends, which are consumed by the combustion process, and the major part of the oil, that is, the liquid components of the bitumen, present is transxported to the producing wells for recovery.
  • injection and production wells are drilled into the deposit and cased in the usual manner.
  • a gas compressor is connected to the input well and an attempt made to force gas between this well and the surrounding production wells. If it is impossible to secure a reasonable flow of air between these wells, the Hydrafrac process, as described in the patents given above, or equivalent, is employed.
  • the compressed air which may or may not be enriched by addition of oxygen from a small oxygen plant, is forced into the injection well at pressures of the order of about 250 p. s. i. up to approximately 500 p. s. i., or higher.
  • a heating source in the injection well at the level of the bituminous deposit; for example, a suitable downthe-hole heater may be run in the injection well.
  • a suitable down-the-hole heater may be run in the injection well.
  • Several types of such down-the-hole heaters have already been given in the .art. One is shown in U. S. Patent 1,457,479 Wolcott. This is simply an electrical heater which can be placed at a desired elevation in the well. If combustible gas is available, it may be forced into the Well together with the oxygen-containing gas, in which case the down-the-hole heater can be a burner at the bottom of the well furnished with a spark plug or other ignition means.
  • a third possibility consists in combusting a solid fuel at the deposit in the well, for example, by mining from the more accessible parts of the bituminous deposit a supply of bituminous sand and crushing this sand to pass through, for example, a ten-mesh sieve. This material is then placed loosely in the bottom of the well and burned, for example, by temporary injection of heated air at a temperature of 500 F. to 1,000 F. This causescombustion of this loose deposit.
  • Other suitable heaters are found in the following U. S. patents: 2,186,035 Niles, 2,3 62,680 Troupe, and 2,332,708 Freeman.
  • the doWn-the-hole heater is temporarily employed in conjunction with the inflow of the oxygencontaining gas under pressure to heat the surface of the deposit adjacent the Well and an area around the well from approximately two feet to approximately ten feet in diameter, by the combined action of radiation, convection, and conduction.
  • This combined heat-generating action heats this area up to a temperature somewhere between 400 F. and about l,000 F. Once this temperature level has been developed in this small area, combustion of bitumen occurs.
  • the heater can then be Withdrawn, and continued injection of air thereafter will supply oxygen to the heated bituminous sand to maintain this combustion reaction.
  • bitumen is liquefied in place, part of it is at least partially cracked and distilled, leaving a coke or heavy hydrocarbon residue on the natural. formation rock material.
  • the air comes in contact with this coke residue, the coke is burned and additional heat is generated.
  • the products of combustion are forced through the sand, driving the liquefied, cracked, and distilled hydrocarbons and water along in the permeable paths toward the producing wells.
  • the liquid oil is produced from the adjacent producing wells in any conventional manner. Often the gaseous products of combustion are adequate to flow the oil; otherwise, conventional pumping units can be employed.
  • the minimum temperature of this zone at which combustion normally can be maintained is of: the order of approximately 400 F. It is desirable to maintain the temperature higher than this value up to temperatures from 800 F. to 1,000 F. When the temperature rises substantially higher than these values', roughly above 1,200 F., combustion takes place too rapidly, the recoverable cracked products are minimized, the liquefaction occurs considerably ahead of the combustion zone, and, in general, the loss of valuable petroleum products in the combustion itself will become sufliciently great to make the process a good deal less economical. Control of the temperature within the reaction zone can be maintained in several ways.
  • the increase in volume of oxygen-containing gas by application of higher injection gas pressure will increase this temperature;
  • the higher temperature is maintained primarily by the fact that the time available for the loss of sensible heat to the formations adjacent and downstream from the combustion zone is minimized.
  • the higher rate of injection and the increased supply of oxygen at the reaction zone by virtue of the higher pressures consumes additional oil in combustion above that required at lower rates and thereby generates more heat.
  • it is possible to dilute the air with inart gas for example, by separating the inert gaseous products of combustion (principally oxides of nitrogen and carbon) from the produced hydrocarbons, and introducing it into the injection stream. This slows down the rate of heat generated and provides additional time for sensible heat loss to adjacent formations as well as to the formation itself in front beyond the combustion zone. Decreasing the injection gas pressure also decreases the combustion zone temperature.
  • one of several tests which can be used to determine whether the air rate being used at a particular time is optimum consists in determining the gravity of the produced oil;- Greater air flow causes a higher combustion front temperature, greater cracking, and a higher gravity product. Accordingly, when the gravity of the resultant oil becomes above about 20 A. P. I., the rate of supplying the oxygen-containing gas should be decreased,.whereas if it drops much under 17 A. P. 1., this rate should be increased. It is also found that a simple analysis for the amount of unsaturated hydrocarbons present in the recovered oil can also be employed to'regulate the rate at which gas is injected. The greater the degree of unsaturation, the greater is the amount of air beingsupplied.
  • Another means for adjusting the combustion Zone temperature involves the injection of water into a solid bituminous sand adjacent to but either above or below the zone being subjected to combustion drive. It is frequently found in such tar sand deposits that there are narrow impervious streaks of shale or the like interbedded with the bituminous deposit. These furnish barriers to vertical flow of gas and liquid productsin the combustion drive described, but do not stop the flow of heat. Typically, initially solid bitumen becomes less and less viscous as the temperature increases and, therefore, after a combustion front has been going for some time, it is often possible to inject water into an adjacent warmed zone of previously solid bitumen, and drive liquefied products from this adjacent zone into a well for production.
  • the water flooding both aids in producing additional hydrocarbons from a previously solid bitumen bed, and also in temperature control ofthe combustion zone. It is found desirable to arrange the oxygen-containing gas injection wells as dual completion wells, so that through one conduit compressed air, for instance, can be injected into the combustion zone, while a water flood in the opposite direction from the flow of hot gas is forcing.
  • a method for recovering oil from a solid deposit of bitumen in which at least two wells have been driven into said deposit and in which combustion of said bitumen heats said deposit and drives oil therefrom to production wells, said deposit being separated from an adjacent zone by an impervious barrier, the improvement involving maintaining the temperature in the region of combustion in said deposit within a predetermined range lying between approximately 400 F. and 1200 F. by measuring a physical characteristic of the fluids driven to said production wells indicative of said temperature, injecting water into said adjacent zone when said measurement indicates said temperature exceeds said range, and increasing the flow rate of said injected air when said measurement indicates said temperature is nearing the low end of said range.

Description

PRODUCTION FROM BITUMINOUS SANDS Lloyd E. Elkin's, Tulsa, Okla., assignor to Stanolind Oil and Gas Company, Tulsa, Okla,, a corporation of Delaware N Drawing. Application June 28, 1952,
Serial No. 296,250
r 1 Claim. (Cl. 16611) This invention pertains to the art of recovering oil from a solid bituminous deposit, such as the Athabaska tar sands or the like.
Various methods have been proposed for recovery of petroleum from bituminous deposits, such as tar sands, in which the bituminous deposit is normally in a solid state intermixed with more or less sand or the like. The methods proposed can be generally classified as either mining the deposit with subsequent treatment of the bituminous deposit in a mill or retort with water, solvents, heat, etc., to separate the recoverable petroleum from the sand, or solvent treatments to remove petroleum from the tar sand in place. Neither of these classes has proved commercially successful.
I have found that oil can be recovered from a solid bituminous deposit by application of heat to the material in place, in Which a part of the deposit is volatilized and driven off, leaving a combustible residue. This combustible residue is oxidized or burned in place by an oxidizing gas driven into the deposit. The hot gaseous products of combustion are forced through the deposit, carrying with them at least a part of the volatilized constituents of the tar sands. Ordinarily, the temperature at the zone of combustion in the bituminous body is regulated to lie in the range of approximately 400 F. to about 1,000 or 1,200 F. Under these conditions, part of the heavier hydrocarbons present in the deposit will be cracked; therefore, the petroleum fractions which are driven by the hot gases to the producing wells will be of considerably higher A. P. I. gravity than were the original deposits. As a result, the oil reaching the production well or wells will be liquid and can be removed from the well by conventional pumping means. Additionally, the passage of the lighter petroleum fractions through the bituminous deposits, together with the local heating of these deposits, causes part of the heavier materials to be dissolved in the lighter fraction. This, therefore, results in a recovery of the major part of the bitumen present in the deposit in the form of a liquid. This liquid can be treated by ordinary refining methods to produce gasoline, kerosense, naphtha, lubricating oil fractions, etc., as is already well-known in the art. The combustion process completely consumes the last residuum from the bituminous deposit, leaving simply the noncombustible sand or the like. As will be shown subsequently, it is only a relatively minor part of the combustibles originally present in the tar sands, the least desirable heavy ends, which are consumed by the combustion process, and the major part of the oil, that is, the liquid components of the bitumen, present is transxported to the producing wells for recovery.
Frequently, it will be found that the permeability of the bituminous deposit is too low initially to permit forcing a gas between an input well and a producing well. In such cases, it is necessary to isolate a zone in the input well by means of packers or the like, as is now wellknown, and carry out in the confined zone a fracturing process; for example, by using the techniquesoutlined in U. S. Patents Nos. 2,596,843 Farris and 2,596,844
i i i j l 'nited A States Patent 0 Clark. By use of this process, it is possible to form a fracture or series of fractures between injection and production wells located a considerable distance apart, and, accordingly, one can develop initial permeability sufficient for gas to flow between these wells. In such an instance it may be necessary to maintain air injection pressures at high enough levels to keep the fracture open until it becomes thoroughly heated up with hot oil, thus preventing solidification and plugging of the fracture.
In carrying out the process, first, injection and production wells are drilled into the deposit and cased in the usual manner. After the wells are completed, a gas compressor is connected to the input well and an attempt made to force gas between this well and the surrounding production wells. If it is impossible to secure a reasonable flow of air between these wells, the Hydrafrac process, as described in the patents given above, or equivalent, is employed. In any case, after gas permeability has been secured, the compressed air, which may or may not be enriched by addition of oxygen from a small oxygen plant, is forced into the injection well at pressures of the order of about 250 p. s. i. up to approximately 500 p. s. i., or higher.
Before routine injection of the air, it is desirable to place a heating source in the injection well at the level of the bituminous deposit; for example, a suitable downthe-hole heater may be run in the injection well. Several types of such down-the-hole heaters have already been given in the .art. One is shown in U. S. Patent 1,457,479 Wolcott. This is simply an electrical heater which can be placed at a desired elevation in the well. If combustible gas is available, it may be forced into the Well together with the oxygen-containing gas, in which case the down-the-hole heater can be a burner at the bottom of the well furnished with a spark plug or other ignition means. A third possibility consists in combusting a solid fuel at the deposit in the well, for example, by mining from the more accessible parts of the bituminous deposit a supply of bituminous sand and crushing this sand to pass through, for example, a ten-mesh sieve. This material is then placed loosely in the bottom of the well and burned, for example, by temporary injection of heated air at a temperature of 500 F. to 1,000 F. This causescombustion of this loose deposit. Other suitable heaters are found in the following U. S. patents: 2,186,035 Niles, 2,3 62,680 Troupe, and 2,332,708 Freeman.
In all cases, the doWn-the-hole heater is temporarily employed in conjunction with the inflow of the oxygencontaining gas under pressure to heat the surface of the deposit adjacent the Well and an area around the well from approximately two feet to approximately ten feet in diameter, by the combined action of radiation, convection, and conduction. This combined heat-generating action heats this area up to a temperature somewhere between 400 F. and about l,000 F. Once this temperature level has been developed in this small area, combustion of bitumen occurs. The heater can then be Withdrawn, and continued injection of air thereafter will supply oxygen to the heated bituminous sand to maintain this combustion reaction. During this reaction, the bitumen is liquefied in place, part of it is at least partially cracked and distilled, leaving a coke or heavy hydrocarbon residue on the natural. formation rock material. As the air comes in contact with this coke residue, the coke is burned and additional heat is generated. The products of combustion are forced through the sand, driving the liquefied, cracked, and distilled hydrocarbons and water along in the permeable paths toward the producing wells.
. The entire contacted sand zone behind the combustion front is completely cleaned of all hydrocarbon and water content. The heat generated in the process is dissipated partially by the cracking process, but largely by the conductance of the heat away from the production zone. The heat flowing from the combustion zone to the producing wells (transferred by the hot gaseous products of com bustion and the warmed liquid oil) tends to increasecontinuously the permeability to fluid now through the deposit by the gradual liquefaction and removal of solid bitumen.
The liquid oil is produced from the adjacent producing wells in any conventional manner. Often the gaseous products of combustion are adequate to flow the oil; otherwise, conventional pumping units can be employed.
It is important to control the temperature within the reaction zone. I have found that the minimum temperature of this zone at which combustion normally can be maintained is of: the order of approximately 400 F. It is desirable to maintain the temperature higher than this value up to temperatures from 800 F. to 1,000 F. When the temperature rises substantially higher than these values', roughly above 1,200 F., combustion takes place too rapidly, the recoverable cracked products are minimized, the liquefaction occurs considerably ahead of the combustion zone, and, in general, the loss of valuable petroleum products in the combustion itself will become sufliciently great to make the process a good deal less economical. Control of the temperature within the reaction zone can be maintained in several ways. The increase in volume of oxygen-containing gas by application of higher injection gas pressure will increase this temperature; The higher temperature is maintained primarily by the fact that the time available for the loss of sensible heat to the formations adjacent and downstream from the combustion zone is minimized. in addition, the higher rate of injection and the increased supply of oxygen at the reaction zone by virtue of the higher pressures consumes additional oil in combustion above that required at lower rates and thereby generates more heat. To keep the temperature from becoming too high, it is possible to dilute the air with inart gas, for example, by separating the inert gaseous products of combustion (principally oxides of nitrogen and carbon) from the produced hydrocarbons, and introducing it into the injection stream. This slows down the rate of heat generated and provides additional time for sensible heat loss to adjacent formations as well as to the formation itself in front beyond the combustion zone. Decreasing the injection gas pressure also decreases the combustion zone temperature.
Ordinarily, it will be found that when air is used as the oxygen-containing gas, it should be furnished to the formation at a rate which is initially low and which rises roughly linearly with time. Approximately 200 to about 1,000 cubic feet of air per hour, for example 500 cubic feet per hour, should be supplied to the burning zone per square foot frontage of this zone. Thus, for example, if the bituminous deposit is feet thick and the burning zone is at a diameter of approximately 32 feet, the combustion zone will have a circumference of roughly 100 feet, an area of approximately 1,000 square feet, and should be supplied compressed air at the rate of approximately 50,000 standard cubic feet per hour. It will be found that gas rates near the upper end of this range, i. e., around 1,000 standard cubic feet per hour per square foot, will produce temperatures in the average bituminous deposit of around 1,000 P. to 1,200 F., which is about as high as the combustion temperature should be carried without excessive losses. When the median rate of 500 standard cubic feet per square foot per hour is employed using Athabaska tar sand, I found a recoveiy of approximately 70 to 90 per cent ofthe hydrocarbons in the deposit, having an everage gravity of 19 A. P. 1., whereas the original bitumen had a gravity ranging from 6 to 7 A. P. I. This particular sample of the tar sands had a content of approximately 90 per cent bitumen and 10 per cent sand by weight. it is apparent from this that there was a conof the oil.
As a matter of fact, one of several tests which can be used to determine whether the air rate being used at a particular time is optimum consists in determining the gravity of the produced oil;- Greater air flow causes a higher combustion front temperature, greater cracking, and a higher gravity product. Accordingly, when the gravity of the resultant oil becomes above about 20 A. P. I., the rate of supplying the oxygen-containing gas should be decreased,.whereas if it drops much under 17 A. P. 1., this rate should be increased. It is also found that a simple analysis for the amount of unsaturated hydrocarbons present in the recovered oil can also be employed to'regulate the rate at which gas is injected. The greater the degree of unsaturation, the greater is the amount of air beingsupplied. Accordingly, by such a test, it is possible todetermiue when the rate of air is insufficient or excessive. Other tests which can be employed are determining the gas/ oil ratio of the recovered hydrocarbons, which ratio increases with increased air flow to the combustion front, and measuring the temperature somewhere near the combustion front. As already stated, this temperature should roughly lie between 400 F. and 1,200" F., for example, 1,000 F. It is possible to drill a small hole or the like through the deposit somewhere near the front and measure the formation temperature directly as the combustion front passes. Or, if the burning is progressively outward past a first series of wells and then to a second series of Wells, the deposit temperature as the combustion front passes the first series of wells can be used as an indication of the oxygen rate thereafter. Modifications of these methods of measurement will be apparent to those skilled in this art.
Another means for adjusting the combustion Zone temperature involves the injection of water into a solid bituminous sand adjacent to but either above or below the zone being subjected to combustion drive. It is frequently found in such tar sand deposits that there are narrow impervious streaks of shale or the like interbedded with the bituminous deposit. These furnish barriers to vertical flow of gas and liquid productsin the combustion drive described, but do not stop the flow of heat. Typically, initially solid bitumen becomes less and less viscous as the temperature increases and, therefore, after a combustion front has been going for some time, it is often possible to inject water into an adjacent warmed zone of previously solid bitumen, and drive liquefied products from this adjacent zone into a well for production. For example, if the ten-foot zone previously discussed were being subjected to combustion, and if heat loss from that zone elevates the temperatures" on adjacent zones separated from the combustion zone by an impervious shale barrier up to, say, 200 to 300 F.,. these latter zones can be 'very satisfactorily water flooded to produce increased amounts of hydrocarbons. Frequently, relatively thin zones in a thick tar sand region are separated by shale beds thin but relatively impervious. By the water flooding technique, particularly if the flood water is heated nearly to its boiling point before injection, the zones separated by shale stringers from the zone in which combustion takes place can be depleted of their bitumen content. The water flooding both aids in producing additional hydrocarbons from a previously solid bitumen bed, and also in temperature control ofthe combustion zone. It is found desirable to arrange the oxygen-containing gas injection wells as dual completion wells, so that through one conduit compressed air, for instance, can be injected into the combustion zone, while a water flood in the opposite direction from the flow of hot gas is forcing.-
can be carried out without departing from the spirit of this invention, which is best defined by the scope of the appended claim.
I claim:
In a method for recovering oil from a solid deposit of bitumen in which at least two wells have been driven into said deposit and in which combustion of said bitumen heats said deposit and drives oil therefrom to production wells, said deposit being separated from an adjacent zone by an impervious barrier, the improvement involving maintaining the temperature in the region of combustion in said deposit within a predetermined range lying between approximately 400 F. and 1200 F. by measuring a physical characteristic of the fluids driven to said production wells indicative of said temperature, injecting water into said adjacent zone when said measurement indicates said temperature exceeds said range, and increasing the flow rate of said injected air when said measurement indicates said temperature is nearing the low end of said range.
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Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803305A (en) * 1953-05-14 1957-08-20 Pan American Petroleum Corp Oil recovery by underground combustion
US2839141A (en) * 1956-01-30 1958-06-17 Worthington Corp Method for oil recovery with "in situ" combustion
US2859818A (en) * 1956-08-20 1958-11-11 Pan American Petroleum Corp Method of recovering petroleum
US2914309A (en) * 1953-05-25 1959-11-24 Svenska Skifferolje Ab Oil and gas recovery from tar sands
US2917296A (en) * 1957-03-08 1959-12-15 Phillips Petroleum Co Recovery of hydrocarbon from oil shale adjoining a permeable oilbearing stratum
US2939688A (en) * 1955-10-05 1960-06-07 Sinclair Oil & Gas Company Opening fissures in low-permeability strata
US2994375A (en) * 1957-12-23 1961-08-01 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US2994376A (en) * 1957-12-27 1961-08-01 Phillips Petroleum Co In situ combustion process
US3000441A (en) * 1958-07-18 1961-09-19 Texaco Inc In situ combustion
US3004594A (en) * 1956-11-19 1961-10-17 Phillips Petroleum Co Process for producing oil
US3010513A (en) * 1958-06-12 1961-11-28 Phillips Petroleum Co Initiation of in situ combustion in carbonaceous stratum
US3013609A (en) * 1958-06-11 1961-12-19 Texaco Inc Method for producing hydrocarbons in an in situ combustion operation
US3016953A (en) * 1958-06-23 1962-01-16 Phillips Petroleum Co Prevention of h2o invasion of in situ combustion zones
US3032103A (en) * 1958-08-11 1962-05-01 Phillips Petroleum Co Increasing fluid flow thru an injection borehole
US3044543A (en) * 1956-10-25 1962-07-17 Socony Mobil Oil Co Inc Subterranean recovery process by combustion
US3048221A (en) * 1958-05-12 1962-08-07 Phillips Petroleum Co Hydrocarbon recovery by thermal drive
US3050116A (en) * 1958-05-26 1962-08-21 Phillips Petroleum Co Multiple zone production by in situ combustion
US3054448A (en) * 1958-04-17 1962-09-18 Continental Oil Co Counterflow in situ combustion process
US3091292A (en) * 1959-02-12 1963-05-28 Texaco Inc Recovering hydrocarbons from subsurface formations
US3116792A (en) * 1959-07-27 1964-01-07 Phillips Petroleum Co In situ combustion process
US3126955A (en) * 1964-03-31 Oil recovery process
US3132692A (en) * 1959-07-27 1964-05-12 Phillips Petroleum Co Use of formation heat from in situ combustion
US3145772A (en) * 1962-09-13 1964-08-25 Gulf Research Development Co Temperature controlled in-situ combustion process
US3159215A (en) * 1958-09-23 1964-12-01 California Research Corp Assisted petroleum recovery by selective combustion in multi-bedded reservoirs
US3167120A (en) * 1961-06-15 1965-01-26 Phillips Petroleum Co Recovery of crude petroleum from plural strata by hot fluid drive
US3180413A (en) * 1962-12-31 1965-04-27 Jersey Prod Res Co Cross flow thermal oil recovery process
US3208514A (en) * 1962-10-31 1965-09-28 Continental Oil Co Recovery of hydrocarbons by in-situ hydrogenation
US3209825A (en) * 1962-02-14 1965-10-05 Continental Oil Co Low temperature in-situ combustion
US3228471A (en) * 1958-06-11 1966-01-11 Texaco Inc Method for producing hydrocarbons in an in situ combustion operation
US3240270A (en) * 1958-05-02 1966-03-15 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US3259185A (en) * 1958-10-27 1966-07-05 Mobil Oil Corp Method of prolonging the usefulness of production wells in thermal-recovery procedures
US3360044A (en) * 1963-03-21 1967-12-26 Deutsche Erdoel Ag Process and apparatus for the recovery of liquid bitumen from underground deposits
US3372750A (en) * 1965-11-19 1968-03-12 Pan American Petroleum Corp Recovery of heavy oil by steam injection
US3421583A (en) * 1967-08-30 1969-01-14 Mobil Oil Corp Recovering oil by cyclic steam injection combined with hot water drive
US3599714A (en) * 1969-09-08 1971-08-17 Roger L Messman Method of recovering hydrocarbons by in situ combustion
US3999606A (en) * 1975-10-06 1976-12-28 Cities Service Company Oil recovery rate by throttling production wells during combustion drive
US4068715A (en) * 1975-10-08 1978-01-17 Texaco Inc. Method for recovering viscous petroleum
US4271904A (en) * 1978-07-17 1981-06-09 Standard Oil Company (Indiana) Method for controlling underground combustion
US4323120A (en) * 1978-07-17 1982-04-06 Standard Oil Company (Indiana) Method for controlling underground combustion
US4323121A (en) * 1978-07-17 1982-04-06 Standard Oil Company (Indiana) Method for controlling underground combustion
US4343361A (en) * 1978-07-17 1982-08-10 Standard Oil Company (Indiana) Method for controlling underground combustion
US4343360A (en) * 1978-07-17 1982-08-10 Standard Oil Company (Indiana) Method for controlling underground combustion
WO2001081239A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery from a hydrocarbon containing formation
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030100451A1 (en) * 2001-04-24 2003-05-29 Messier Margaret Ann In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
US20030173082A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of a heavy oil diatomite formation
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US20030173072A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Forming openings in a hydrocarbon containing formation using magnetic tracking
US20030178191A1 (en) * 2000-04-24 2003-09-25 Maher Kevin Albert In situ recovery from a kerogen and liquid hydrocarbon containing formation
US20030192693A1 (en) * 2001-10-24 2003-10-16 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US6698515B2 (en) 2000-04-24 2004-03-02 Shell Oil Company In situ thermal processing of a coal formation using a relatively slow heating rate
US6715546B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ production of synthesis gas from a hydrocarbon containing formation through a heat source wellbore
US6715548B2 (en) 2000-04-24 2004-04-06 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce nitrogen containing formation fluids
US20040140095A1 (en) * 2002-10-24 2004-07-22 Vinegar Harold J. Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US20050269089A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Temperature limited heaters using modulated DC power
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US20070045267A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Subsurface connection methods for subsurface heaters
US20070095537A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
US20070108201A1 (en) * 2005-04-22 2007-05-17 Vinegar Harold J Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US20080017380A1 (en) * 2006-04-21 2008-01-24 Vinegar Harold J Non-ferromagnetic overburden casing
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20100089584A1 (en) * 2008-10-13 2010-04-15 David Booth Burns Double insulated heaters for treating subsurface formations
US20100258309A1 (en) * 2009-04-10 2010-10-14 Oluropo Rufus Ayodele Heater assisted fluid treatment of a subsurface formation
US20120037363A1 (en) * 2007-05-10 2012-02-16 Shell Oil Company Systems and methods for producing oil and/or gas
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1237139A (en) * 1917-08-14 Method of and apparatus for extracting oil from subterranean strata
US1457479A (en) * 1920-01-12 1923-06-05 Edson R Wolcott Method of increasing the yield of oil wells
US2382471A (en) * 1941-03-03 1945-08-14 Phillips Petroleum Co Method of recovering hydrocarbons
US2390770A (en) * 1942-10-10 1945-12-11 Sun Oil Co Method of producing petroleum
US2481051A (en) * 1945-12-15 1949-09-06 Texaco Development Corp Process and apparatus for the recovery of volatilizable constituents from underground carbonaceous formations
US2584606A (en) * 1948-07-02 1952-02-05 Edmund S Merriam Thermal drive method for recovery of oil
US2584605A (en) * 1948-04-14 1952-02-05 Edmund S Merriam Thermal drive method for recovery of oil
US2642943A (en) * 1949-05-20 1953-06-23 Sinclair Oil & Gas Co Oil recovery process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1237139A (en) * 1917-08-14 Method of and apparatus for extracting oil from subterranean strata
US1457479A (en) * 1920-01-12 1923-06-05 Edson R Wolcott Method of increasing the yield of oil wells
US2382471A (en) * 1941-03-03 1945-08-14 Phillips Petroleum Co Method of recovering hydrocarbons
US2390770A (en) * 1942-10-10 1945-12-11 Sun Oil Co Method of producing petroleum
US2481051A (en) * 1945-12-15 1949-09-06 Texaco Development Corp Process and apparatus for the recovery of volatilizable constituents from underground carbonaceous formations
US2584605A (en) * 1948-04-14 1952-02-05 Edmund S Merriam Thermal drive method for recovery of oil
US2584606A (en) * 1948-07-02 1952-02-05 Edmund S Merriam Thermal drive method for recovery of oil
US2642943A (en) * 1949-05-20 1953-06-23 Sinclair Oil & Gas Co Oil recovery process

Cited By (497)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126955A (en) * 1964-03-31 Oil recovery process
US2803305A (en) * 1953-05-14 1957-08-20 Pan American Petroleum Corp Oil recovery by underground combustion
US2914309A (en) * 1953-05-25 1959-11-24 Svenska Skifferolje Ab Oil and gas recovery from tar sands
US2939688A (en) * 1955-10-05 1960-06-07 Sinclair Oil & Gas Company Opening fissures in low-permeability strata
US2839141A (en) * 1956-01-30 1958-06-17 Worthington Corp Method for oil recovery with "in situ" combustion
US2859818A (en) * 1956-08-20 1958-11-11 Pan American Petroleum Corp Method of recovering petroleum
US3044543A (en) * 1956-10-25 1962-07-17 Socony Mobil Oil Co Inc Subterranean recovery process by combustion
US3004594A (en) * 1956-11-19 1961-10-17 Phillips Petroleum Co Process for producing oil
US2917296A (en) * 1957-03-08 1959-12-15 Phillips Petroleum Co Recovery of hydrocarbon from oil shale adjoining a permeable oilbearing stratum
US2994375A (en) * 1957-12-23 1961-08-01 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US2994376A (en) * 1957-12-27 1961-08-01 Phillips Petroleum Co In situ combustion process
US3054448A (en) * 1958-04-17 1962-09-18 Continental Oil Co Counterflow in situ combustion process
US3240270A (en) * 1958-05-02 1966-03-15 Phillips Petroleum Co Recovery of hydrocarbons by in situ combustion
US3048221A (en) * 1958-05-12 1962-08-07 Phillips Petroleum Co Hydrocarbon recovery by thermal drive
US3050116A (en) * 1958-05-26 1962-08-21 Phillips Petroleum Co Multiple zone production by in situ combustion
US3228471A (en) * 1958-06-11 1966-01-11 Texaco Inc Method for producing hydrocarbons in an in situ combustion operation
US3013609A (en) * 1958-06-11 1961-12-19 Texaco Inc Method for producing hydrocarbons in an in situ combustion operation
US3010513A (en) * 1958-06-12 1961-11-28 Phillips Petroleum Co Initiation of in situ combustion in carbonaceous stratum
US3016953A (en) * 1958-06-23 1962-01-16 Phillips Petroleum Co Prevention of h2o invasion of in situ combustion zones
US3000441A (en) * 1958-07-18 1961-09-19 Texaco Inc In situ combustion
US3032103A (en) * 1958-08-11 1962-05-01 Phillips Petroleum Co Increasing fluid flow thru an injection borehole
US3159215A (en) * 1958-09-23 1964-12-01 California Research Corp Assisted petroleum recovery by selective combustion in multi-bedded reservoirs
US3259185A (en) * 1958-10-27 1966-07-05 Mobil Oil Corp Method of prolonging the usefulness of production wells in thermal-recovery procedures
US3091292A (en) * 1959-02-12 1963-05-28 Texaco Inc Recovering hydrocarbons from subsurface formations
US3116792A (en) * 1959-07-27 1964-01-07 Phillips Petroleum Co In situ combustion process
US3132692A (en) * 1959-07-27 1964-05-12 Phillips Petroleum Co Use of formation heat from in situ combustion
US3167120A (en) * 1961-06-15 1965-01-26 Phillips Petroleum Co Recovery of crude petroleum from plural strata by hot fluid drive
US3209825A (en) * 1962-02-14 1965-10-05 Continental Oil Co Low temperature in-situ combustion
US3145772A (en) * 1962-09-13 1964-08-25 Gulf Research Development Co Temperature controlled in-situ combustion process
US3208514A (en) * 1962-10-31 1965-09-28 Continental Oil Co Recovery of hydrocarbons by in-situ hydrogenation
US3180413A (en) * 1962-12-31 1965-04-27 Jersey Prod Res Co Cross flow thermal oil recovery process
US3360044A (en) * 1963-03-21 1967-12-26 Deutsche Erdoel Ag Process and apparatus for the recovery of liquid bitumen from underground deposits
US3372750A (en) * 1965-11-19 1968-03-12 Pan American Petroleum Corp Recovery of heavy oil by steam injection
US3421583A (en) * 1967-08-30 1969-01-14 Mobil Oil Corp Recovering oil by cyclic steam injection combined with hot water drive
US3599714A (en) * 1969-09-08 1971-08-17 Roger L Messman Method of recovering hydrocarbons by in situ combustion
US3999606A (en) * 1975-10-06 1976-12-28 Cities Service Company Oil recovery rate by throttling production wells during combustion drive
US4068715A (en) * 1975-10-08 1978-01-17 Texaco Inc. Method for recovering viscous petroleum
US4271904A (en) * 1978-07-17 1981-06-09 Standard Oil Company (Indiana) Method for controlling underground combustion
US4323120A (en) * 1978-07-17 1982-04-06 Standard Oil Company (Indiana) Method for controlling underground combustion
US4323121A (en) * 1978-07-17 1982-04-06 Standard Oil Company (Indiana) Method for controlling underground combustion
US4343361A (en) * 1978-07-17 1982-08-10 Standard Oil Company (Indiana) Method for controlling underground combustion
US4343360A (en) * 1978-07-17 1982-08-10 Standard Oil Company (Indiana) Method for controlling underground combustion
US6997255B2 (en) 2000-04-24 2006-02-14 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation in a reducing environment
US6877554B2 (en) 2000-04-24 2005-04-12 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using pressure and/or temperature control
US20020040778A1 (en) * 2000-04-24 2002-04-11 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation with a selected hydrogen content
US20020049360A1 (en) * 2000-04-24 2002-04-25 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce a mixture including ammonia
US20020046883A1 (en) * 2000-04-24 2002-04-25 Wellington Scott Lee In situ thermal processing of a coal formation using pressure and/or temperature control
WO2001081239A3 (en) * 2000-04-24 2002-05-23 Shell Oil Co In situ recovery from a hydrocarbon containing formation
US20020076212A1 (en) * 2000-04-24 2002-06-20 Etuan Zhang In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons
US20020132862A1 (en) * 2000-04-24 2002-09-19 Vinegar Harold J. Production of synthesis gas from a coal formation
GB2379469A (en) * 2000-04-24 2003-03-12 Shell Int Research In situ recovery from a hydrocarbon containing formation
US20090101346A1 (en) * 2000-04-24 2009-04-23 Shell Oil Company, Inc. In situ recovery from a hydrocarbon containing formation
US7798221B2 (en) 2000-04-24 2010-09-21 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20110088904A1 (en) * 2000-04-24 2011-04-21 De Rouffignac Eric Pierre In situ recovery from a hydrocarbon containing formation
US8225866B2 (en) 2000-04-24 2012-07-24 Shell Oil Company In situ recovery from a hydrocarbon containing formation
WO2001081239A2 (en) * 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery from a hydrocarbon containing formation
US8485252B2 (en) 2000-04-24 2013-07-16 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US8789586B2 (en) 2000-04-24 2014-07-29 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US7096941B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation with heat sources located at an edge of a coal layer
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7086468B2 (en) 2000-04-24 2006-08-08 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellbores
US6581684B2 (en) 2000-04-24 2003-06-24 Shell Oil Company In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
US7036583B2 (en) 2000-04-24 2006-05-02 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
US6588504B2 (en) 2000-04-24 2003-07-08 Shell Oil Company In situ thermal processing of a coal formation to produce nitrogen and/or sulfur containing formation fluids
US6591907B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a coal formation with a selected vitrinite reflectance
US6591906B2 (en) 2000-04-24 2003-07-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
US7017661B2 (en) 2000-04-24 2006-03-28 Shell Oil Company Production of synthesis gas from a coal formation
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US20030178191A1 (en) * 2000-04-24 2003-09-25 Maher Kevin Albert In situ recovery from a kerogen and liquid hydrocarbon containing formation
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US20030131995A1 (en) * 2001-04-24 2003-07-17 De Rouffignac Eric Pierre In situ thermal processing of a relatively impermeable formation to increase permeability of the formation
US20030131996A1 (en) * 2001-04-24 2003-07-17 Vinegar Harold J. In situ thermal processing of an oil shale formation having permeable and impermeable sections
US20080314593A1 (en) * 2001-04-24 2008-12-25 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030079877A1 (en) * 2001-04-24 2003-05-01 Wellington Scott Lee In situ thermal processing of a relatively impermeable formation in a reducing environment
US7735935B2 (en) 2001-04-24 2010-06-15 Shell Oil Company In situ thermal processing of an oil shale formation containing carbonate minerals
US20030080604A1 (en) * 2001-04-24 2003-05-01 Vinegar Harold J. In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20100270015A1 (en) * 2001-04-24 2010-10-28 Shell Oil Company In situ thermal processing of an oil shale formation
US20030100451A1 (en) * 2001-04-24 2003-05-29 Messier Margaret Ann In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030098149A1 (en) * 2001-04-24 2003-05-29 Wellington Scott Lee In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US7225866B2 (en) 2001-04-24 2007-06-05 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030098605A1 (en) * 2001-04-24 2003-05-29 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation
US20040211557A1 (en) * 2001-04-24 2004-10-28 Cole Anthony Thomas Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US20040211554A1 (en) * 2001-04-24 2004-10-28 Vinegar Harold J. Heat sources with conductive material for in situ thermal processing of an oil shale formation
US20030102126A1 (en) * 2001-04-24 2003-06-05 Sumnu-Dindoruk Meliha Deniz In situ thermal recovery from a relatively permeable formation with controlled production rate
US20030102124A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal processing of a blending agent from a relatively permeable formation
US20140305640A1 (en) * 2001-04-24 2014-10-16 Shell Oil Company In situ thermal processing of an oil shale formation using conductive heating
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US20030102130A1 (en) * 2001-04-24 2003-06-05 Vinegar Harold J. In situ thermal recovery from a relatively permeable formation with quality control
US6877555B2 (en) 2001-04-24 2005-04-12 Shell Oil Company In situ thermal processing of an oil shale formation while inhibiting coking
US20030173078A1 (en) * 2001-04-24 2003-09-18 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a condensate
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US20030102125A1 (en) * 2001-04-24 2003-06-05 Wellington Scott Lee In situ thermal processing of a relatively permeable formation in a reducing environment
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US20030111223A1 (en) * 2001-04-24 2003-06-19 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation using horizontal heat sources
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US20030173080A1 (en) * 2001-04-24 2003-09-18 Berchenko Ilya Emil In situ thermal processing of an oil shale formation using a pattern of heat sources
US20030164239A1 (en) * 2001-04-24 2003-09-04 Wellington Scott Lee In situ thermal processing of an oil shale formation in a reducing environment
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US6918443B2 (en) 2001-04-24 2005-07-19 Shell Oil Company In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
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US20030155111A1 (en) * 2001-04-24 2003-08-21 Shell Oil Co In situ thermal processing of a tar sands formation
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US7051811B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal processing through an open wellbore in an oil shale formation
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US20030148894A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. In situ thermal processing of an oil shale formation using a natural distributed combustor
US6951247B2 (en) 2001-04-24 2005-10-04 Shell Oil Company In situ thermal processing of an oil shale formation using horizontal heat sources
US20030146002A1 (en) * 2001-04-24 2003-08-07 Vinegar Harold J. Removable heat sources for in situ thermal processing of an oil shale formation
US20030142964A1 (en) * 2001-04-24 2003-07-31 Wellington Scott Lee In situ thermal processing of an oil shale formation using a controlled heating rate
US6964300B2 (en) 2001-04-24 2005-11-15 Shell Oil Company In situ thermal recovery from a relatively permeable formation with backproduction through a heater wellbore
US20030141067A1 (en) * 2001-04-24 2003-07-31 Rouffignac Eric Pierre De In situ thermal processing of an oil shale formation to increase permeability of the formation
US6966374B2 (en) 2001-04-24 2005-11-22 Shell Oil Company In situ thermal recovery from a relatively permeable formation using gas to increase mobility
US7051807B2 (en) 2001-04-24 2006-05-30 Shell Oil Company In situ thermal recovery from a relatively permeable formation with quality control
US7040398B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively permeable formation in a reducing environment
US7040399B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of an oil shale formation using a controlled heating rate
US7040400B2 (en) 2001-04-24 2006-05-09 Shell Oil Company In situ thermal processing of a relatively impermeable formation using an open wellbore
US20030116315A1 (en) * 2001-04-24 2003-06-26 Wellington Scott Lee In situ thermal processing of a relatively permeable formation
US7032660B2 (en) * 2001-04-24 2006-04-25 Shell Oil Company In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
US20030131993A1 (en) * 2001-04-24 2003-07-17 Etuan Zhang In situ thermal processing of an oil shale formation with a selected property
US7013972B2 (en) 2001-04-24 2006-03-21 Shell Oil Company In situ thermal processing of an oil shale formation using a natural distributed combustor
US7004251B2 (en) 2001-04-24 2006-02-28 Shell Oil Company In situ thermal processing and remediation of an oil shale formation
US7004247B2 (en) 2001-04-24 2006-02-28 Shell Oil Company Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation
US20030137181A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce hydrocarbons having a selected carbon number range
US20030141068A1 (en) * 2001-04-24 2003-07-31 Pierre De Rouffignac Eric In situ thermal processing through an open wellbore in an oil shale formation
US6981548B2 (en) 2001-04-24 2006-01-03 Shell Oil Company In situ thermal recovery from a relatively permeable formation
US20030136558A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing of an oil shale formation to produce a desired product
US20030141066A1 (en) * 2001-04-24 2003-07-31 Karanikas John Michael In situ thermal processing of an oil shale formation while inhibiting coking
US6991032B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US6991033B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing while controlling pressure in an oil shale formation
US20030136559A1 (en) * 2001-04-24 2003-07-24 Wellington Scott Lee In situ thermal processing while controlling pressure in an oil shale formation
US6991036B2 (en) 2001-04-24 2006-01-31 Shell Oil Company Thermal processing of a relatively permeable formation
US6994169B2 (en) 2001-04-24 2006-02-07 Shell Oil Company In situ thermal processing of an oil shale formation with a selected property
US6991045B2 (en) 2001-10-24 2006-01-31 Shell Oil Company Forming openings in a hydrocarbon containing formation using magnetic tracking
US7461691B2 (en) 2001-10-24 2008-12-09 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20070209799A1 (en) * 2001-10-24 2007-09-13 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20040040715A1 (en) * 2001-10-24 2004-03-04 Wellington Scott Lee In situ production of a blending agent from a hydrocarbon containing formation
US20030205378A1 (en) * 2001-10-24 2003-11-06 Wellington Scott Lee In situ recovery from lean and rich zones in a hydrocarbon containing formation
US20030201098A1 (en) * 2001-10-24 2003-10-30 Karanikas John Michael In situ recovery from a hydrocarbon containing formation using one or more simulations
US20030196789A1 (en) * 2001-10-24 2003-10-23 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation and upgrading of produced fluids prior to further treatment
US20040211569A1 (en) * 2001-10-24 2004-10-28 Vinegar Harold J. Installation and use of removable heaters in a hydrocarbon containing formation
US20030196810A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. Treatment of a hydrocarbon containing formation after heating
US8627887B2 (en) 2001-10-24 2014-01-14 Shell Oil Company In situ recovery from a hydrocarbon containing formation
US20140190691A1 (en) * 2001-10-24 2014-07-10 Harold J. Vinegar Method of selecting a production well location in a hydrocarbon subsurface formation
US20030196801A1 (en) * 2001-10-24 2003-10-23 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7156176B2 (en) 2001-10-24 2007-01-02 Shell Oil Company Installation and use of removable heaters in a hydrocarbon containing formation
US7051808B1 (en) 2001-10-24 2006-05-30 Shell Oil Company Seismic monitoring of in situ conversion in a hydrocarbon containing formation
US6969123B2 (en) 2001-10-24 2005-11-29 Shell Oil Company Upgrading and mining of coal
US6932155B2 (en) 2001-10-24 2005-08-23 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
US20030173082A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of a heavy oil diatomite formation
US7063145B2 (en) 2001-10-24 2006-06-20 Shell Oil Company Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations
US20030173081A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. In situ thermal processing of an oil reservoir formation
US7066257B2 (en) 2001-10-24 2006-06-27 Shell Oil Company In situ recovery from lean and rich zones in a hydrocarbon containing formation
US7128153B2 (en) 2001-10-24 2006-10-31 Shell Oil Company Treatment of a hydrocarbon containing formation after heating
US7077199B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ thermal processing of an oil reservoir formation
US7077198B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ recovery from a hydrocarbon containing formation using barriers
US7086465B2 (en) 2001-10-24 2006-08-08 Shell Oil Company In situ production of a blending agent from a hydrocarbon containing formation
US20030173085A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Upgrading and mining of coal
US7090013B2 (en) 2001-10-24 2006-08-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US20030173072A1 (en) * 2001-10-24 2003-09-18 Vinegar Harold J. Forming openings in a hydrocarbon containing formation using magnetic tracking
US20050092483A1 (en) * 2001-10-24 2005-05-05 Vinegar Harold J. In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US20030192691A1 (en) * 2001-10-24 2003-10-16 Vinegar Harold J. In situ recovery from a hydrocarbon containing formation using barriers
US7100994B2 (en) 2001-10-24 2006-09-05 Shell Oil Company Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
US7104319B2 (en) 2001-10-24 2006-09-12 Shell Oil Company In situ thermal processing of a heavy oil diatomite formation
US20030192693A1 (en) * 2001-10-24 2003-10-16 Wellington Scott Lee In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
US7114566B2 (en) 2001-10-24 2006-10-03 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US7121341B2 (en) 2002-10-24 2006-10-17 Shell Oil Company Conductor-in-conduit temperature limited heaters
US7219734B2 (en) 2002-10-24 2007-05-22 Shell Oil Company Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US7073578B2 (en) 2002-10-24 2006-07-11 Shell Oil Company Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US20040144540A1 (en) * 2002-10-24 2004-07-29 Sandberg Chester Ledlie High voltage temperature limited heaters
US20040144541A1 (en) * 2002-10-24 2004-07-29 Picha Mark Gregory Forming wellbores using acoustic methods
US20040145969A1 (en) * 2002-10-24 2004-07-29 Taixu Bai Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US20040140095A1 (en) * 2002-10-24 2004-07-22 Vinegar Harold J. Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation
US20050006097A1 (en) * 2002-10-24 2005-01-13 Sandberg Chester Ledlie Variable frequency temperature limited heaters
US8224164B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Insulated conductor temperature limited heaters
US8224163B2 (en) 2002-10-24 2012-07-17 Shell Oil Company Variable frequency temperature limited heaters
US20040146288A1 (en) * 2002-10-24 2004-07-29 Vinegar Harold J. Temperature limited heaters for heating subsurface formations or wellbores
US8238730B2 (en) 2002-10-24 2012-08-07 Shell Oil Company High voltage temperature limited heaters
US8579031B2 (en) 2003-04-24 2013-11-12 Shell Oil Company Thermal processes for subsurface formations
US7942203B2 (en) 2003-04-24 2011-05-17 Shell Oil Company Thermal processes for subsurface formations
US7360588B2 (en) 2003-04-24 2008-04-22 Shell Oil Company Thermal processes for subsurface formations
US7640980B2 (en) 2003-04-24 2010-01-05 Shell Oil Company Thermal processes for subsurface formations
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
US20050269090A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US7510000B2 (en) 2004-04-23 2009-03-31 Shell Oil Company Reducing viscosity of oil for production from a hydrocarbon containing formation
US20050269095A1 (en) * 2004-04-23 2005-12-08 Fairbanks Michael D Inhibiting reflux in a heated well of an in situ conversion system
US20050269094A1 (en) * 2004-04-23 2005-12-08 Harris Christopher K Triaxial temperature limited heater
US20050269092A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Vacuum pumping of conductor-in-conduit heaters
US7370704B2 (en) 2004-04-23 2008-05-13 Shell Oil Company Triaxial temperature limited heater
US20050269091A1 (en) * 2004-04-23 2005-12-08 Guillermo Pastor-Sanz Reducing viscosity of oil for production from a hydrocarbon containing formation
US20050269077A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Start-up of temperature limited heaters using direct current (DC)
US20050269313A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Temperature limited heaters with high power factors
US20050269089A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Temperature limited heaters using modulated DC power
US20050269088A1 (en) * 2004-04-23 2005-12-08 Vinegar Harold J Inhibiting effects of sloughing in wellbores
US20050269093A1 (en) * 2004-04-23 2005-12-08 Sandberg Chester L Variable frequency temperature limited heaters
US7320364B2 (en) 2004-04-23 2008-01-22 Shell Oil Company Inhibiting reflux in a heated well of an in situ conversion system
US7490665B2 (en) 2004-04-23 2009-02-17 Shell Oil Company Variable frequency temperature limited heaters
US7481274B2 (en) 2004-04-23 2009-01-27 Shell Oil Company Temperature limited heaters with relatively constant current
US20060289536A1 (en) * 2004-04-23 2006-12-28 Vinegar Harold J Subsurface electrical heaters using nitride insulation
US20060005968A1 (en) * 2004-04-23 2006-01-12 Vinegar Harold J Temperature limited heaters with relatively constant current
US7431076B2 (en) 2004-04-23 2008-10-07 Shell Oil Company Temperature limited heaters using modulated DC power
US7424915B2 (en) 2004-04-23 2008-09-16 Shell Oil Company Vacuum pumping of conductor-in-conduit heaters
US7353872B2 (en) 2004-04-23 2008-04-08 Shell Oil Company Start-up of temperature limited heaters using direct current (DC)
US7357180B2 (en) 2004-04-23 2008-04-15 Shell Oil Company Inhibiting effects of sloughing in wellbores
US8355623B2 (en) 2004-04-23 2013-01-15 Shell Oil Company Temperature limited heaters with high power factors
US7383877B2 (en) 2004-04-23 2008-06-10 Shell Oil Company Temperature limited heaters with thermally conductive fluid used to heat subsurface formations
US20070108201A1 (en) * 2005-04-22 2007-05-17 Vinegar Harold J Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase wye configuration
US20070045265A1 (en) * 2005-04-22 2007-03-01 Mckinzie Billy J Ii Low temperature barriers with heat interceptor wells for in situ processes
US7546873B2 (en) 2005-04-22 2009-06-16 Shell Oil Company Low temperature barriers for use with in situ processes
US8233782B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Grouped exposed metal heaters
US20070133961A1 (en) * 2005-04-22 2007-06-14 Fairbanks Michael D Methods and systems for producing fluid from an in situ conversion process
US7527094B2 (en) 2005-04-22 2009-05-05 Shell Oil Company Double barrier system for an in situ conversion process
US20070144732A1 (en) * 2005-04-22 2007-06-28 Kim Dong S Low temperature barriers for use with in situ processes
US7942197B2 (en) 2005-04-22 2011-05-17 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US20070137856A1 (en) * 2005-04-22 2007-06-21 Mckinzie Billy J Double barrier system for an in situ conversion process
US20070133959A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J Grouped exposed metal heaters
US8224165B2 (en) 2005-04-22 2012-07-17 Shell Oil Company Temperature limited heater utilizing non-ferromagnetic conductor
US8230927B2 (en) 2005-04-22 2012-07-31 Shell Oil Company Methods and systems for producing fluid from an in situ conversion process
US20070119098A1 (en) * 2005-04-22 2007-05-31 Zaida Diaz Treatment of gas from an in situ conversion process
US7986869B2 (en) 2005-04-22 2011-07-26 Shell Oil Company Varying properties along lengths of temperature limited heaters
US20080217321A1 (en) * 2005-04-22 2008-09-11 Vinegar Harold J Temperature limited heater utilizing non-ferromagnetic conductor
US7860377B2 (en) 2005-04-22 2010-12-28 Shell Oil Company Subsurface connection methods for subsurface heaters
US7831134B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Grouped exposed metal heaters
US7831133B2 (en) 2005-04-22 2010-11-09 Shell Oil Company Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
US20070108200A1 (en) * 2005-04-22 2007-05-17 Mckinzie Billy J Ii Low temperature barrier wellbores formed using water flushing
US20070133960A1 (en) * 2005-04-22 2007-06-14 Vinegar Harold J In situ conversion process systems utilizing wellbores in at least two regions of a formation
US7575053B2 (en) 2005-04-22 2009-08-18 Shell Oil Company Low temperature monitoring system for subsurface barriers
US7435037B2 (en) 2005-04-22 2008-10-14 Shell Oil Company Low temperature barriers with heat interceptor wells for in situ processes
US7500528B2 (en) 2005-04-22 2009-03-10 Shell Oil Company Low temperature barrier wellbores formed using water flushing
US8027571B2 (en) 2005-04-22 2011-09-27 Shell Oil Company In situ conversion process systems utilizing wellbores in at least two regions of a formation
US7575052B2 (en) 2005-04-22 2009-08-18 Shell Oil Company In situ conversion process utilizing a closed loop heating system
US20070045267A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Subsurface connection methods for subsurface heaters
US8070840B2 (en) 2005-04-22 2011-12-06 Shell Oil Company Treatment of gas from an in situ conversion process
US20070045268A1 (en) * 2005-04-22 2007-03-01 Vinegar Harold J Varying properties along lengths of temperature limited heaters
US20070045266A1 (en) * 2005-04-22 2007-03-01 Sandberg Chester L In situ conversion process utilizing a closed loop heating system
US20110168394A1 (en) * 2005-10-24 2011-07-14 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US7559368B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Solution mining systems and methods for treating hydrocarbon containing formations
US7559367B2 (en) 2005-10-24 2009-07-14 Shell Oil Company Temperature limited heater with a conduit substantially electrically isolated from the formation
US7581589B2 (en) 2005-10-24 2009-09-01 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070221377A1 (en) * 2005-10-24 2007-09-27 Vinegar Harold J Solution mining systems and methods for treating hydrocarbon containing formations
US7584789B2 (en) 2005-10-24 2009-09-08 Shell Oil Company Methods of cracking a crude product to produce additional crude products
US8151880B2 (en) 2005-10-24 2012-04-10 Shell Oil Company Methods of making transportation fuel
US7591310B2 (en) 2005-10-24 2009-09-22 Shell Oil Company Methods of hydrotreating a liquid stream to remove clogging compounds
US8606091B2 (en) 2005-10-24 2013-12-10 Shell Oil Company Subsurface heaters with low sulfidation rates
US20070095536A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Cogeneration systems and processes for treating hydrocarbon containing formations
US7635025B2 (en) 2005-10-24 2009-12-22 Shell Oil Company Cogeneration systems and processes for treating hydrocarbon containing formations
US20070131420A1 (en) * 2005-10-24 2007-06-14 Weijian Mo Methods of cracking a crude product to produce additional crude products
US20070095537A1 (en) * 2005-10-24 2007-05-03 Vinegar Harold J Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
US20090301724A1 (en) * 2005-10-24 2009-12-10 Shell Oil Company Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20070127897A1 (en) * 2005-10-24 2007-06-07 John Randy C Subsurface heaters with low sulfidation rates
US7562706B2 (en) 2005-10-24 2009-07-21 Shell Oil Company Systems and methods for producing hydrocarbons from tar sands formations
US20070125533A1 (en) * 2005-10-24 2007-06-07 Minderhoud Johannes K Methods of hydrotreating a liquid stream to remove clogging compounds
US20070131419A1 (en) * 2005-10-24 2007-06-14 Maria Roes Augustinus W Methods of producing alkylated hydrocarbons from an in situ heat treatment process liquid
US20080107577A1 (en) * 2005-10-24 2008-05-08 Vinegar Harold J Varying heating in dawsonite zones in hydrocarbon containing formations
US7549470B2 (en) 2005-10-24 2009-06-23 Shell Oil Company Solution mining and heating by oxidation for treating hydrocarbon containing formations
US7556096B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Varying heating in dawsonite zones in hydrocarbon containing formations
US7556095B2 (en) 2005-10-24 2009-07-07 Shell Oil Company Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
US20070131427A1 (en) * 2005-10-24 2007-06-14 Ruijian Li Systems and methods for producing hydrocarbons from tar sands formations
US20080035346A1 (en) * 2006-04-21 2008-02-14 Vijay Nair Methods of producing transportation fuel
US7533719B2 (en) 2006-04-21 2009-05-19 Shell Oil Company Wellhead with non-ferromagnetic materials
US8192682B2 (en) 2006-04-21 2012-06-05 Shell Oil Company High strength alloys
US7785427B2 (en) 2006-04-21 2010-08-31 Shell Oil Company High strength alloys
US7793722B2 (en) 2006-04-21 2010-09-14 Shell Oil Company Non-ferromagnetic overburden casing
US20080017380A1 (en) * 2006-04-21 2008-01-24 Vinegar Harold J Non-ferromagnetic overburden casing
US8857506B2 (en) 2006-04-21 2014-10-14 Shell Oil Company Alternate energy source usage methods for in situ heat treatment processes
US7683296B2 (en) 2006-04-21 2010-03-23 Shell Oil Company Adjusting alloy compositions for selected properties in temperature limited heaters
US20080035705A1 (en) * 2006-04-21 2008-02-14 Menotti James L Welding shield for coupling heaters
US8083813B2 (en) 2006-04-21 2011-12-27 Shell Oil Company Methods of producing transportation fuel
US7673786B2 (en) 2006-04-21 2010-03-09 Shell Oil Company Welding shield for coupling heaters
US20080035347A1 (en) * 2006-04-21 2008-02-14 Brady Michael P Adjusting alloy compositions for selected properties in temperature limited heaters
US20080035348A1 (en) * 2006-04-21 2008-02-14 Vitek John M Temperature limited heaters using phase transformation of ferromagnetic material
US20080038144A1 (en) * 2006-04-21 2008-02-14 Maziasz Phillip J High strength alloys
US20100272595A1 (en) * 2006-04-21 2010-10-28 Shell Oil Company High strength alloys
US20080173450A1 (en) * 2006-04-21 2008-07-24 Bernard Goldberg Time sequenced heating of multiple layers in a hydrocarbon containing formation
US20080173449A1 (en) * 2006-04-21 2008-07-24 Thomas David Fowler Sour gas injection for use with in situ heat treatment
US7597147B2 (en) 2006-04-21 2009-10-06 Shell Oil Company Temperature limited heaters using phase transformation of ferromagnetic material
US7604052B2 (en) 2006-04-21 2009-10-20 Shell Oil Company Compositions produced using an in situ heat treatment process
US20080173442A1 (en) * 2006-04-21 2008-07-24 Vinegar Harold J Sulfur barrier for use with in situ processes for treating formations
US20080174115A1 (en) * 2006-04-21 2008-07-24 Gene Richard Lambirth Power systems utilizing the heat of produced formation fluid
US7610962B2 (en) 2006-04-21 2009-11-03 Shell Oil Company Sour gas injection for use with in situ heat treatment
US20080173444A1 (en) * 2006-04-21 2008-07-24 Francis Marion Stone Alternate energy source usage for in situ heat treatment processes
US7866385B2 (en) 2006-04-21 2011-01-11 Shell Oil Company Power systems utilizing the heat of produced formation fluid
US7635023B2 (en) 2006-04-21 2009-12-22 Shell Oil Company Time sequenced heating of multiple layers in a hydrocarbon containing formation
US7912358B2 (en) 2006-04-21 2011-03-22 Shell Oil Company Alternate energy source usage for in situ heat treatment processes
US7631689B2 (en) 2006-04-21 2009-12-15 Shell Oil Company Sulfur barrier for use with in situ processes for treating formations
US7730945B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US7562707B2 (en) 2006-10-20 2009-07-21 Shell Oil Company Heating hydrocarbon containing formations in a line drive staged process
US20080135253A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J Treating tar sands formations with karsted zones
US7635024B2 (en) 2006-10-20 2009-12-22 Shell Oil Company Heating tar sands formations to visbreaking temperatures
US20080135244A1 (en) * 2006-10-20 2008-06-12 David Scott Miller Heating hydrocarbon containing formations in a line drive staged process
US8555971B2 (en) 2006-10-20 2013-10-15 Shell Oil Company Treating tar sands formations with dolomite
US7644765B2 (en) 2006-10-20 2010-01-12 Shell Oil Company Heating tar sands formations while controlling pressure
US7673681B2 (en) 2006-10-20 2010-03-09 Shell Oil Company Treating tar sands formations with karsted zones
US20080135254A1 (en) * 2006-10-20 2008-06-12 Vinegar Harold J In situ heat treatment process utilizing a closed loop heating system
US7677314B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Method of condensing vaporized water in situ to treat tar sands formations
US7677310B2 (en) 2006-10-20 2010-03-16 Shell Oil Company Creating and maintaining a gas cap in tar sands formations
US7681647B2 (en) 2006-10-20 2010-03-23 Shell Oil Company Method of producing drive fluid in situ in tar sands formations
US20080142216A1 (en) * 2006-10-20 2008-06-19 Vinegar Harold J Treating tar sands formations with dolomite
US20080142217A1 (en) * 2006-10-20 2008-06-19 Roelof Pieterson Using geothermal energy to heat a portion of a formation for an in situ heat treatment process
US20080128134A1 (en) * 2006-10-20 2008-06-05 Ramesh Raju Mudunuri Producing drive fluid in situ in tar sands formations
US7631690B2 (en) 2006-10-20 2009-12-15 Shell Oil Company Heating hydrocarbon containing formations in a spiral startup staged sequence
US20080185147A1 (en) * 2006-10-20 2008-08-07 Vinegar Harold J Wax barrier for use with in situ processes for treating formations
US20090014181A1 (en) * 2006-10-20 2009-01-15 Vinegar Harold J Creating and maintaining a gas cap in tar sands formations
US7703513B2 (en) 2006-10-20 2010-04-27 Shell Oil Company Wax barrier for use with in situ processes for treating formations
US7540324B2 (en) 2006-10-20 2009-06-02 Shell Oil Company Heating hydrocarbon containing formations in a checkerboard pattern staged process
US20080217003A1 (en) * 2006-10-20 2008-09-11 Myron Ira Kuhlman Gas injection to inhibit migration during an in situ heat treatment process
US7845411B2 (en) 2006-10-20 2010-12-07 Shell Oil Company In situ heat treatment process utilizing a closed loop heating system
US7841401B2 (en) 2006-10-20 2010-11-30 Shell Oil Company Gas injection to inhibit migration during an in situ heat treatment process
US7717171B2 (en) 2006-10-20 2010-05-18 Shell Oil Company Moving hydrocarbons through portions of tar sands formations with a fluid
US20080217016A1 (en) * 2006-10-20 2008-09-11 George Leo Stegemeier Creating fluid injectivity in tar sands formations
US7730946B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Treating tar sands formations with dolomite
US7730947B2 (en) 2006-10-20 2010-06-08 Shell Oil Company Creating fluid injectivity in tar sands formations
US20080217015A1 (en) * 2006-10-20 2008-09-11 Vinegar Harold J Heating hydrocarbon containing formations in a spiral startup staged sequence
US20100276141A1 (en) * 2006-10-20 2010-11-04 Shell Oil Company Creating fluid injectivity in tar sands formations
US8191630B2 (en) 2006-10-20 2012-06-05 Shell Oil Company Creating fluid injectivity in tar sands formations
US20080217004A1 (en) * 2006-10-20 2008-09-11 De Rouffignac Eric Pierre Heating hydrocarbon containing formations in a checkerboard pattern staged process
US20080277113A1 (en) * 2006-10-20 2008-11-13 George Leo Stegemeier Heating tar sands formations while controlling pressure
US20080283246A1 (en) * 2006-10-20 2008-11-20 John Michael Karanikas Heating tar sands formations to visbreaking temperatures
US20090014180A1 (en) * 2006-10-20 2009-01-15 George Leo Stegemeier Moving hydrocarbons through portions of tar sands formations with a fluid
US8327681B2 (en) 2007-04-20 2012-12-11 Shell Oil Company Wellbore manufacturing processes for in situ heat treatment processes
US20090095478A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US20090071652A1 (en) * 2007-04-20 2009-03-19 Vinegar Harold J In situ heat treatment from multiple layers of a tar sands formation
US20090078461A1 (en) * 2007-04-20 2009-03-26 Arthur James Mansure Drilling subsurface wellbores with cutting structures
US8459359B2 (en) 2007-04-20 2013-06-11 Shell Oil Company Treating nahcolite containing formations and saline zones
US8042610B2 (en) 2007-04-20 2011-10-25 Shell Oil Company Parallel heater system for subsurface formations
US20090084547A1 (en) * 2007-04-20 2009-04-02 Walter Farman Farmayan Downhole burner systems and methods for heating subsurface formations
US20090090509A1 (en) * 2007-04-20 2009-04-09 Vinegar Harold J In situ recovery from residually heated sections in a hydrocarbon containing formation
US20090095479A1 (en) * 2007-04-20 2009-04-16 John Michael Karanikas Production from multiple zones of a tar sands formation
US20090095477A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Heating systems for heating subsurface formations
US20090095480A1 (en) * 2007-04-20 2009-04-16 Vinegar Harold J In situ heat treatment of a tar sands formation after drive process treatment
US20090095476A1 (en) * 2007-04-20 2009-04-16 Scott Vinh Nguyen Molten salt as a heat transfer fluid for heating a subsurface formation
US7832484B2 (en) 2007-04-20 2010-11-16 Shell Oil Company Molten salt as a heat transfer fluid for heating a subsurface formation
US7798220B2 (en) 2007-04-20 2010-09-21 Shell Oil Company In situ heat treatment of a tar sands formation after drive process treatment
US7841408B2 (en) 2007-04-20 2010-11-30 Shell Oil Company In situ heat treatment from multiple layers of a tar sands formation
US7841425B2 (en) 2007-04-20 2010-11-30 Shell Oil Company Drilling subsurface wellbores with cutting structures
US20090120646A1 (en) * 2007-04-20 2009-05-14 Dong Sub Kim Electrically isolating insulated conductor heater
US7849922B2 (en) 2007-04-20 2010-12-14 Shell Oil Company In situ recovery from residually heated sections in a hydrocarbon containing formation
US20090126929A1 (en) * 2007-04-20 2009-05-21 Vinegar Harold J Treating nahcolite containing formations and saline zones
US9181780B2 (en) 2007-04-20 2015-11-10 Shell Oil Company Controlling and assessing pressure conditions during treatment of tar sands formations
US8381815B2 (en) 2007-04-20 2013-02-26 Shell Oil Company Production from multiple zones of a tar sands formation
US8791396B2 (en) 2007-04-20 2014-07-29 Shell Oil Company Floating insulated conductors for heating subsurface formations
US7950453B2 (en) 2007-04-20 2011-05-31 Shell Oil Company Downhole burner systems and methods for heating subsurface formations
US8662175B2 (en) 2007-04-20 2014-03-04 Shell Oil Company Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities
US20090321075A1 (en) * 2007-04-20 2009-12-31 Christopher Kelvin Harris Parallel heater system for subsurface formations
US7931086B2 (en) 2007-04-20 2011-04-26 Shell Oil Company Heating systems for heating subsurface formations
US20120037363A1 (en) * 2007-05-10 2012-02-16 Shell Oil Company Systems and methods for producing oil and/or gas
US20090194329A1 (en) * 2007-10-19 2009-08-06 Rosalvina Ramona Guimerans Methods for forming wellbores in heated formations
US8196658B2 (en) 2007-10-19 2012-06-12 Shell Oil Company Irregular spacing of heat sources for treating hydrocarbon containing formations
US7866386B2 (en) 2007-10-19 2011-01-11 Shell Oil Company In situ oxidation of subsurface formations
US7866388B2 (en) 2007-10-19 2011-01-11 Shell Oil Company High temperature methods for forming oxidizer fuel
US8011451B2 (en) 2007-10-19 2011-09-06 Shell Oil Company Ranging methods for developing wellbores in subsurface formations
US20090189617A1 (en) * 2007-10-19 2009-07-30 David Burns Continuous subsurface heater temperature measurement
US20090194282A1 (en) * 2007-10-19 2009-08-06 Gary Lee Beer In situ oxidation of subsurface formations
US20090194333A1 (en) * 2007-10-19 2009-08-06 Macdonald Duncan Ranging methods for developing wellbores in subsurface formations
US20090194524A1 (en) * 2007-10-19 2009-08-06 Dong Sub Kim Methods for forming long subsurface heaters
US8113272B2 (en) 2007-10-19 2012-02-14 Shell Oil Company Three-phase heaters with common overburden sections for heating subsurface formations
US20090194269A1 (en) * 2007-10-19 2009-08-06 Vinegar Harold J Three-phase heaters with common overburden sections for heating subsurface formations
US8146661B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Cryogenic treatment of gas
US8146669B2 (en) 2007-10-19 2012-04-03 Shell Oil Company Multi-step heater deployment in a subsurface formation
US20090200025A1 (en) * 2007-10-19 2009-08-13 Jose Luis Bravo High temperature methods for forming oxidizer fuel
US20090200031A1 (en) * 2007-10-19 2009-08-13 David Scott Miller Irregular spacing of heat sources for treating hydrocarbon containing formations
US8162059B2 (en) 2007-10-19 2012-04-24 Shell Oil Company Induction heaters used to heat subsurface formations
US20090200854A1 (en) * 2007-10-19 2009-08-13 Vinegar Harold J Solution mining and in situ treatment of nahcolite beds
US8536497B2 (en) 2007-10-19 2013-09-17 Shell Oil Company Methods for forming long subsurface heaters
US8276661B2 (en) 2007-10-19 2012-10-02 Shell Oil Company Heating subsurface formations by oxidizing fuel on a fuel carrier
US8272455B2 (en) 2007-10-19 2012-09-25 Shell Oil Company Methods for forming wellbores in heated formations
US8240774B2 (en) 2007-10-19 2012-08-14 Shell Oil Company Solution mining and in situ treatment of nahcolite beds
US20100071903A1 (en) * 2008-04-18 2010-03-25 Shell Oil Company Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8177305B2 (en) 2008-04-18 2012-05-15 Shell Oil Company Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations
US9528322B2 (en) 2008-04-18 2016-12-27 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8752904B2 (en) 2008-04-18 2014-06-17 Shell Oil Company Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US8151907B2 (en) 2008-04-18 2012-04-10 Shell Oil Company Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US8636323B2 (en) 2008-04-18 2014-01-28 Shell Oil Company Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8162405B2 (en) 2008-04-18 2012-04-24 Shell Oil Company Using tunnels for treating subsurface hydrocarbon containing formations
US20090260824A1 (en) * 2008-04-18 2009-10-22 David Booth Burns Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20090260823A1 (en) * 2008-04-18 2009-10-22 Robert George Prince-Wright Mines and tunnels for use in treating subsurface hydrocarbon containing formations
US8562078B2 (en) 2008-04-18 2013-10-22 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US20090272533A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Heated fluid flow in mines and tunnels used in heating subsurface hydrocarbon containing formations
US8172335B2 (en) 2008-04-18 2012-05-08 Shell Oil Company Electrical current flow between tunnels for use in heating subsurface hydrocarbon containing formations
US20090272535A1 (en) * 2008-04-18 2009-11-05 David Booth Burns Using tunnels for treating subsurface hydrocarbon containing formations
US20090272578A1 (en) * 2008-04-18 2009-11-05 Macdonald Duncan Charles Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations
US20100071904A1 (en) * 2008-04-18 2010-03-25 Shell Oil Company Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations
US8281861B2 (en) 2008-10-13 2012-10-09 Shell Oil Company Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US20100108379A1 (en) * 2008-10-13 2010-05-06 David Alston Edbury Systems and methods of forming subsurface wellbores
US20100108310A1 (en) * 2008-10-13 2010-05-06 Thomas David Fowler Offset barrier wells in subsurface formations
US20100089584A1 (en) * 2008-10-13 2010-04-15 David Booth Burns Double insulated heaters for treating subsurface formations
US8353347B2 (en) 2008-10-13 2013-01-15 Shell Oil Company Deployment of insulated conductors for treating subsurface formations
US20100155070A1 (en) * 2008-10-13 2010-06-24 Augustinus Wilhelmus Maria Roes Organonitrogen compounds used in treating hydrocarbon containing formations
US9129728B2 (en) 2008-10-13 2015-09-08 Shell Oil Company Systems and methods of forming subsurface wellbores
US9051829B2 (en) 2008-10-13 2015-06-09 Shell Oil Company Perforated electrical conductors for treating subsurface formations
US9022118B2 (en) 2008-10-13 2015-05-05 Shell Oil Company Double insulated heaters for treating subsurface formations
US8267170B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Offset barrier wells in subsurface formations
US8267185B2 (en) 2008-10-13 2012-09-18 Shell Oil Company Circulated heated transfer fluid systems used to treat a subsurface formation
US8261832B2 (en) 2008-10-13 2012-09-11 Shell Oil Company Heating subsurface formations with fluids
US8256512B2 (en) 2008-10-13 2012-09-04 Shell Oil Company Movable heaters for treating subsurface hydrocarbon containing formations
US20100147521A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Perforated electrical conductors for treating subsurface formations
US20100089586A1 (en) * 2008-10-13 2010-04-15 John Andrew Stanecki Movable heaters for treating subsurface hydrocarbon containing formations
US20100096137A1 (en) * 2008-10-13 2010-04-22 Scott Vinh Nguyen Circulated heated transfer fluid heating of subsurface hydrocarbon formations
US20100101784A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US8881806B2 (en) 2008-10-13 2014-11-11 Shell Oil Company Systems and methods for treating a subsurface formation with electrical conductors
US20100101783A1 (en) * 2008-10-13 2010-04-29 Vinegar Harold J Using self-regulating nuclear reactors in treating a subsurface formation
US8220539B2 (en) 2008-10-13 2012-07-17 Shell Oil Company Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation
US20100224368A1 (en) * 2008-10-13 2010-09-09 Stanley Leroy Mason Deployment of insulated conductors for treating subsurface formations
US20100206570A1 (en) * 2008-10-13 2010-08-19 Ernesto Rafael Fonseca Ocampos Circulated heated transfer fluid systems used to treat a subsurface formation
US20100147522A1 (en) * 2008-10-13 2010-06-17 Xueying Xie Systems and methods for treating a subsurface formation with electrical conductors
US8448707B2 (en) 2009-04-10 2013-05-28 Shell Oil Company Non-conducting heater casings
US20110042084A1 (en) * 2009-04-10 2011-02-24 Robert Bos Irregular pattern treatment of a subsurface formation
US8327932B2 (en) 2009-04-10 2012-12-11 Shell Oil Company Recovering energy from a subsurface formation
US20100258309A1 (en) * 2009-04-10 2010-10-14 Oluropo Rufus Ayodele Heater assisted fluid treatment of a subsurface formation
US20100258291A1 (en) * 2009-04-10 2010-10-14 Everett De St Remey Edward Heated liners for treating subsurface hydrocarbon containing formations
US8434555B2 (en) 2009-04-10 2013-05-07 Shell Oil Company Irregular pattern treatment of a subsurface formation
US8851170B2 (en) 2009-04-10 2014-10-07 Shell Oil Company Heater assisted fluid treatment of a subsurface formation
US20100258265A1 (en) * 2009-04-10 2010-10-14 John Michael Karanikas Recovering energy from a subsurface formation
US20100258290A1 (en) * 2009-04-10 2010-10-14 Ronald Marshall Bass Non-conducting heater casings
US8739874B2 (en) 2010-04-09 2014-06-03 Shell Oil Company Methods for heating with slots in hydrocarbon formations
US9127538B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Methodologies for treatment of hydrocarbon formations using staged pyrolyzation
US9399905B2 (en) 2010-04-09 2016-07-26 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
US9022109B2 (en) 2010-04-09 2015-05-05 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US8875788B2 (en) 2010-04-09 2014-11-04 Shell Oil Company Low temperature inductive heating of subsurface formations
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9033042B2 (en) 2010-04-09 2015-05-19 Shell Oil Company Forming bitumen barriers in subsurface hydrocarbon formations
US8833453B2 (en) 2010-04-09 2014-09-16 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with tapered copper thickness
US9127523B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Barrier methods for use in subsurface hydrocarbon formations
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US8701768B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
US10047594B2 (en) 2012-01-23 2018-08-14 Genie Ip B.V. Heater pattern for in situ thermal processing of a subsurface hydrocarbon containing formation

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