CA2458634A1 - Method and plant for increasing oil recovery by gas injection - Google Patents

Method and plant for increasing oil recovery by gas injection Download PDF

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Publication number
CA2458634A1
CA2458634A1 CA002458634A CA2458634A CA2458634A1 CA 2458634 A1 CA2458634 A1 CA 2458634A1 CA 002458634 A CA002458634 A CA 002458634A CA 2458634 A CA2458634 A CA 2458634A CA 2458634 A1 CA2458634 A1 CA 2458634A1
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Canada
Prior art keywords
gas
fraction
synthesis
furnace
rich fraction
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Granted
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CA002458634A
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French (fr)
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CA2458634C (en
Inventor
Ola Olsvik
Erling Rytter
Jostein Sogge
Rune Kvale
Sjur Haugen
Jan Grontvedt
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Equinor Energy AS
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04563—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
    • F25J3/04569—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating for enhanced or tertiary oil recovery
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1516—Multisteps
    • C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
    • C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
    • E21B43/168—Injecting a gaseous medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04533—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the direct combustion of fuels in a power plant, so-called "oxyfuel combustion"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04539—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04563—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
    • F25J3/04575—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating for a gas expansion plant, e.g. dilution of the combustion gas in a gas turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04593—The air gas consuming unit is also fed by an air stream
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0244—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being an autothermal reforming step, e.g. secondary reforming processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0283—Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step

Abstract

A method and a plant for simultaneous production of a gas for injection into an oil field and production of methanol, dimethyl ether and/or other oxygenated hydrocarbons or production of higher hydrocarbons from natural gas is disclosed. An air separation unit (ATR) for production of pure nitrogen for injection and pure oxygen for production of synthesis gas ("syngas") by authermal reformation of a natural gas is an essential part of the method and plant.

Claims (19)

1.
A method for increasing oil recovery from an oil reservoir in which method gas is injected into the reservoir, comprising the steps of:
- separation of air into an oxygen-rich fraction and a nitrogen-rich fraction, - providing a natural gas stream and leading the natural gas stream and at least a part of the oxygen-rich fraction to a reformer for conversion to synthesis gas mainly comprising H2, CO and CO2 in addition to lower amounts of non-converted methane, water vapour and oxygen, - synthesis methanol or other oxygenated hydrocarbons or higher hydrocarbons from the synthesis gas in a synthesis unit, - withdrawing a waste gas from the synthesis unit - injecting the nitrogen-rich fraction and at least a part of the waste gas into the oil reservoir to increase the oil recovery from the reservoir,
2.
A method according to Claim 1, further comprising separation of the waste gas from the synthesis unit into a CO2-rich fraction and a fraction low in CO2 and using the CO2-rich fraction for injection into the oil reservoir.
3.
A method according to Claim 1 or 2, wherein the waste gas from the synthesis unit is combusted with oxygen prior to separation into a CO2-rich fraction and a fraction low in CO2.
4.
A method according to Claim 3, wherein the waste gas is combusted at an elevated pressure, preferably at a pressure of from 2 to 100 bar, more preferably from 20 to 40 bar.
5.
A method according to Claim 1 or 2, wherein the waste gas from the synthesis unit is separated into a CO2-rich fraction and a fraction low in CO2, and that the fraction low in CO2 is then combusted in a gas turbine or a furnace.
6.
A method according to Claim 2, wherein the fraction low in CO2 is split into a hydrogen-rich fraction and a fraction low in hydrogen, where the hydrogen-rich fraction is sent to a process that requires the addition of hydrogen, and the fraction low in hydrogen is combusted.
7.
A method according to Claim 3 or 4, wherein the waste gas is combusted in a furnace or a turbine (30), and that the exhaust gas from the furnace or turbine (30) is separated into a CO2-rich fraction that is injected into the oil reservoir, and a fraction low in CO2.
8.
A method according to Claim 7, wherein the exhaust gas from the furnace or turbine goes through secondary combustion in a catalytic secondary combustion chamber before being separated into a CO2-rich fraction and a fraction low in CO2.
9.
A method according to Claim 7 or 8, wherein natural gas is added to the in the furnace or turbine.
10.
A method according to one or more of the preceding claims, wherein a part of the synthesis gas is bypassed the synthesis unit.
11.
A plant for providing gas for downhole injection for pressure support in an oil reservoir for recovering of hydrocarbons and production of methanol, dimethyl ether and/or other oxygenated hydrocarbons or for production of higher hydrocarbons from natural gas, comprising:
- an air separation unit (2) for production of an oxygen-rich fraction for supply to processes that require oxygen, and a nitrogen fraction for injection;
- a reformer (8) for conversion of a mixture of natural gas, water and oxygen from the air separation unit into a synthesis gas comprising mainly Ha, CO, CO2 and small amounts of methane;
- a synthesis unit (15) for conversion of the synthesis gas for synthesis of methanol or other oxygenated hydrocarbons, or for synthesis of synthetic fuel;
- means for injecting gas (6) into the reservoir;
- means for transferring nitrogen from the air separation unit to the means for injecting gas; and - means for transferring at least a part of a waste gas from the synthesis unit to the means for injecting gas.
12.
A plant according to Claim 11, wherein the means for transferring waste gas from the synthesis unit comprises one or more separation units (20, 34) for separating the waste gas into a CO2-rich fraction that is led to the unit (6) for injection for pressure support, and a fraction low in CO2.
13.
A plant according to Claim 11 or 12, further comprising a furnace or a gas turbine (30) for combustion of the waste gas from the synthesis unit (15) and a line (40) for leading oxygen for the combustion from the air separation unit (2) to the furnace or gas turbine (18).
14.
A plant according to Claim 12, further comprising means (20, 34) of separating the waste gas from the synthesis unit (15) into a CO2-rich fraction and a fraction low in CO2, and a gas turbine or a furnace (23) for combustion of the fraction low in CO2.
15.
A plant according to Claim 12, comprising means of splitting the low CO2 fraction of the waste gas from the synthesis unit into a hydrogen rich fraction and a fraction low in hydrogen.
16.
A plant according to Claim 13, further comprising a furnace or a gas turbine for combustion of the waste gas from the synthesis unit (15) and means (34) of separating the exhaust gas from the furnace or turbine (30) into a CO2-rich fraction that is led to the unit (6) for injection for pressure support, and a fraction low in CO2.
17.
A plant according to Claim 16, comprising a catalytic secondary combustion chamber (32) for secondary combustion of the exhaust gas from the furnace or turbine (30) prior to it being separated into a CO2-rich fraction and a fraction low in CO2.
18.
A plant according to Claim 16 or 17, further comprising a bypass line (42) for leading some of the added natural gas past the reformer (8) and the synthesis unit (15), to the furnace or turbine (30).
19.
A plant according to one or more of the claims 11 to 18, further comprising a bypass line (25) for leading some of the synthesis gas past the synthesis unit (15).
CA2458634A 2001-08-31 2002-08-30 Method and plant for increasing oil recovery by gas injection Expired - Fee Related CA2458634C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/NO2001/000356 WO2003018958A1 (en) 2001-08-31 2001-08-31 Method and plant for enhanced oil recovery and simultaneous synthesis of hydrocarbons from natural gas
NOPCT/NO01/00356 2001-08-31
PCT/NO2002/000305 WO2003018959A1 (en) 2001-08-31 2002-08-30 Method and plant for increasing oil recovery by gas injection

Publications (2)

Publication Number Publication Date
CA2458634A1 true CA2458634A1 (en) 2003-03-06
CA2458634C CA2458634C (en) 2011-08-02

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CA2458634A Expired - Fee Related CA2458634C (en) 2001-08-31 2002-08-30 Method and plant for increasing oil recovery by gas injection

Country Status (12)

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US (1) US7168488B2 (en)
EP (1) EP1434926B1 (en)
CN (1) CN1333151C (en)
AT (1) ATE342427T1 (en)
AU (1) AU2002324375B2 (en)
BR (1) BR0212177A (en)
CA (1) CA2458634C (en)
DE (1) DE60215372T2 (en)
EA (1) EA005448B1 (en)
MX (1) MXPA04001756A (en)
WO (2) WO2003018958A1 (en)
ZA (1) ZA200401414B (en)

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