CN105545278A - Oil field surface desanding device - Google Patents
Oil field surface desanding device Download PDFInfo
- Publication number
- CN105545278A CN105545278A CN201610111763.2A CN201610111763A CN105545278A CN 105545278 A CN105545278 A CN 105545278A CN 201610111763 A CN201610111763 A CN 201610111763A CN 105545278 A CN105545278 A CN 105545278A
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- Prior art keywords
- liquid
- crude oil
- desanding device
- solid
- oil
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Classifications
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- 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
- E21B43/34—Arrangements for separating materials produced by the well
Abstract
The invention provides an oil field surface desanding device. The device comprises a mixer used for being connected with a wellhead and a thermal medium mouth-piece to conduct mixing, heating and viscosity reduction on input crude oil and then output the crude oil, an expansion buffer tank and a liquid-solid separator, wherein the expansion buffer tank comprises a hollow sealed tank body, a liquid inlet pipe connected with the mixer is arranged on the tank body, an exhaust pipe used for discharging gas from the crude oil is arranged on the top of the tank body, a first sand draining pipe used for draining deposited sand obtained after standing is arranged on the bottom of the tank body, and a first liquid draining pipe used for draining primary deposition crude oil is arranged on the side face of the tank body; the liquid-solid separator is connected with the first liquid draining pipe and conducts liquid-solid separation on received crude oil through rotation, a second liquid draining pipe used for draining crude oil obtained after separation is arranged on the top of the liquid-solid separator, and a solid receiving tank used for receiving sand obtained after separation is arranged on the bottom of the liquid-solid separator. By the adoption of the device, crude oil extracted from an oil field at the later stage can be subjected to liquid-solid separation twice, the content of sand in the crude oil can be reduced, and the quality of the crude oil can be improved.
Description
Technical field
The present invention relates to oil recovery field, particularly relate to a kind of desanding device that can carry out ON-LINE SEPARATION to the silt particle contained in crude oil.
Background technology
In oil extraction process, inevitably the silt particle of underground can be taken to ground, when especially oil field enters middle and later periods exploitation, due to continuous pressure break and huff and puff oil recovery, shaking out can be more and more serious.This silt particle brings safely a lot of harm not only to pipeline and tank body, also can affect continuous seepage.And due to the raising of environmental protection standard, just allow externally discharge from adopting when the silt particle of discharging liquid only has its oil-containing to be down to certain standard.
Also have separation (or removing) scheme for silt particle in prior art, as gravitational settling, filter, these technology, except the problems such as efficiency, also lack effective measures for removing containing sand in low temperature viscous crude.
Summary of the invention
The object of the invention is to provide a kind of desanding device that can carry out ON-LINE SEPARATION to the silt particle contained in crude oil.
Especially, the invention provides a kind of oil field ground desanding device, comprising:
Blender, for connecting well head and thermal medium mouthpiece, to export after the crude oil mixing heating and viscosity reducing entered;
Expansion buffer tank, comprise tank body that is hollow and sealing, described tank body is provided with the feed tube be connected with described blender, the stack of discharging former oil dissolved gas is provided with at top, be provided with the first row sandpipe of discharging and leaving standstill postprecipitation silt particle in bottom, be provided with first discharging tube of discharging preliminary sedimentation crude oil in side;
Liquid-solid separator, is connected with described first discharging tube, and it carries out liquid-solid centrifugation by the mode of eddy flow to the crude oil received, and is provided with the second discharging tube that discharge is separated rear crude oil at top, is provided with the solid receiving magazine receiving and be separated rear silt particle in bottom.
Further, the bottom of described solid receiving magazine is provided with second row sandpipe, and described second row sandpipe is connected with described first row sandpipe, and silt particle is delivered to silt particle treating apparatus by the described first row sandpipe after connection and second row sandpipe.
Further, the port of export of described gland steam exhauster is connected by gas-liquid mixing machine with the body of described liquid discharge tube, and the liquid that described liquid discharge tube is discharged becomes gas-liquid mixed state.
Further, the exit of described second discharging tube is provided with the force (forcing) pump improving Crude Oil Transportation pressure.
Further, the medium of described thermal medium mouthpiece input is hot water, steam or dilution medicament.
Further, described expansion buffer tank and described liquid-solid separator form a desanding device, are provided with multiple described desanding device in a described desanding device, and each described desanding device is connected in series.
Further, described solid receiving magazine is the infundibulate of top to bottom Stepwize Shrink, and the connector diameter of described solid receiving magazine and described liquid-solid separator is 1/4 ~ 1/6 of described solid receiving magazine upper diameter.
Further, the pipeline exporting described silt particle cleaning device to of described first row sandpipe and described second row sandpipe is provided with sand transport device, described sand transport device is the auger with screw blade.
Further, described liquid-solid separator comprises knockout drum, oil exit pipe and sand removing hole, the top of described knockout drum is cylindrical lower portion is the taper of shrinking, described first discharging tube is connected with the top of described knockout drum obliquely, described oil exit pipe is arranged on the top circle centre position of described knockout drum and link inserts in described knockout drum, and described sand removing hole is arranged on the conical outlet place of described knockout drum bottom.
Further, the inwall of described first discharging tube and described knockout drum angle is in the horizontal direction 10 ~ 30 degree.
The crude oil that the present invention can make the oil field later stage adopt, through twice separation, reduces the silt particle in crude oil, improves crude quality.This programme can on-line continuous operation, and does not affect the progress of oil recovery.Utilize thermal medium mixed crude to improve dilution factor, be particularly suitable for the silt particle cleaning in low temperature viscous crude.
Accompanying drawing explanation
Fig. 1 is oil field ground desanding device structural representation according to an embodiment of the invention;
Fig. 2 is the structural representation of liquid-solid separator in Fig. 1;
In figure: 1-blender, 2-feed tube, 3-thermal medium mouthpiece, 4-expansion buffer tank, 41-tank body, 42-feed tube, 43-first discharging tube, 44-first row sandpipe, 5-stack, 6-gas-liquid mixing machine, 7-liquid-solid separator, 71-second discharging tube, 72-knockout drum, 73-oil exit pipe, 74-sand removing hole, 8-solid receiving magazine, 81-second row sandpipe, 9-silt particle treating apparatus, 10-force (forcing) pump.
Detailed description of the invention
As shown in Figure 1, the oil field ground desanding device of one embodiment of the invention comprises in general manner: utilize thermal medium to heat to the crude oil entered and mix the rear blender 1 exported, crude oil for blender 1 output provides the expansion buffer tank 4 of reaction compartment, and carries out the liquid-solid separator 7 of solid-liquor separation to the crude oil that expansion buffer tank 4 is discharged.
This blender 1 is connected by feed tube 2 with the ground delivery outlet of producing well, is provided with the thermal medium mouthpiece 3 receiving thermal medium simultaneously.This expansion buffer tank 4 can comprise tank body 41 that is hollow and sealing, tank body 41 is provided with the feed tube 42 be connected with blender 1, the stack 5 of gas after the top of tank body 41 is provided with discharge initial gross separation, be provided with the first row sandpipe 44 of discharging silt particle after initial gross separation in the bottom of tank body 41, tank body 41 is provided with first discharging tube 43 of discharging crude oil after initial gross separation.This liquid-solid separator 7 is connected with the first discharging tube 43 of tank body 41, it carries out liquid-solid meticulous separation by the mode rotated to the crude oil received, be provided with the liquid discharge tube 71 that discharge is separated rear crude oil at its top, bottom it, be provided with the solid receiving magazine 8 receiving and be separated rear solid.
Operationally, directly enter blender 1 by the crude oil of underground extraction by feed tube 2, carry out contacting and mixing with the thermal medium inputted by thermal medium mouthpiece 3 in blender 1.The thermal medium used in the present embodiment can be hot water, steam or dilution medicament etc., because underground crude oil itself possesses certain temperature, therefore, can based on crude temperature adjustment thermal medium temperature, the temperature of general thermal medium itself at least needs the temperature being greater than crude oil itself.In addition, another effect of thermal medium is diluted crude oil, and the silt particle in crude oil is more easily separated by treatment facility below.Therefore, when the selecting of thermal medium, first consider to refine later stage crude oil or deposit the thermal medium shine into and affect, as steam.
Expansion buffer tank 4 is exported to after mixed crude oil is warmed, carry out standing separation, the volume of expansion buffer tank 4 can be greater than the volume of blender 1, thinks that the crude oil after being mixed with thermal medium provides enough reaction compartments, and each state material after simultaneously more easily making separation is independently discharged.The gas produced after gas in crude oil and crude oil mix with thermal medium, can rise after leaving standstill in expansion buffer tank 4 and be discharged by stack 5, and larger solid silt particle can be discharged by the first row sandpipe 44 bottom expansion buffer tank 4 after sedimentation, crude oil wherein is then discharged by the first discharging tube 43 be positioned on expansion buffer tank 4 tank body 41, can try one's best the top of in expansion buffer tank 4 liquid level in the position of the first discharging tube 43, be contained in the as far as possible few crude oil of silt particle to discharge.
Liquid-solid separator 7 is connected with the first discharging tube 43 of expansion buffer tank 4, and to be separated further the silt particle in liquid, liquid-solid separator 7 can adopt conventional structure to carry out solid-liquor separation, as rotating separation.Liquid after its separation is discharged by second discharging tube 71 at liquid-solid separator 7 top, and isolated silt particle is expelled in solid receiving magazine 8 by the bottom of liquid-solid separator 7.
For convenience of the discharge of silt particle, this solid receiving magazine 8 can be the infundibulate of top to bottom Stepwize Shrink, and the volume of solid receiving magazine 8 can be greater than the volume of liquid-solid separator 7, to avoid the separating rate affecting liquid-solid separator 7.For convenience of the discharge of silt particle in solid receiving magazine 8, in fixed reception case 8, corresponding mixing plant can be installed, pile sum to avoid silt particle and block.For preventing silt particle from refluxing, the diameter of the connector of solid receiving magazine 8 and liquid-solid separator 7 can be 1/4 ~ 1/6 of its upper diameter.
The present embodiment is by said structure, and the crude oil that the oil field later stage can be made to adopt, through twice solid-liquor separation, reduces the silt particle in crude oil, improves crude quality.The scheme of the present embodiment can on-line continuous operation, and does not affect the progress of oil recovery.Utilize thermal medium mixed crude to improve dilution factor, be particularly suitable for the silt particle cleaning in low temperature viscous crude.
Further, in this embodiment, the bottom of solid receiving magazine 8 can arrange the second row sandpipe 81 be connected with first row sandpipe 44, and isolated silt particle uniform effluent is extremely specified silt particle cleaning plant 9 by first row sandpipe 44 and second row sandpipe 81.For avoiding the silt particle in pipe to block, in sediment outflow pipe, auger type conveying device can be installed, by spiral vane, silt particle be discharged in time.
For avoiding wasting the gas in separation process, stack 5 port of export in this expansion buffer tank 4 can be connected by gas-liquid mixing machine 6 with the second discharging tube 71 of liquid-solid separator 7, make the liquid after separation again with after gas and vapor permeation form gas-liquid mixed state, then carry out oil and gas multiphase flow.
In one embodiment of the invention, for improving the conveying effect of oil gas, the force (forcing) pump 10 increasing hydraulic discharge pressure can be set in the exit of the second discharging tube 71.
For improving separating effect, in one embodiment of the invention, this expansion buffer tank 4 and liquid-solid separator 7 form a desanding device, and during desanding, multiple desanding device can be connected in series into a desanding (or separation) system, namely the oil gas mixture that previous second discharging tube is discharged is entered by the feed tube 2 of next blender 1 again, repeats aforementioned desanding process, to improve final silt particle separating effect.The several desanding device of concrete series connection, can determine according to predetermined oil product.
As shown in Figure 2, further, liquid-solid separator 7 in the present invention can comprise knockout drum 72, oil exit pipe 73 and sand removing hole 74, the top of this knockout drum 72 is cylindrical, bottom is the taper of shrinking, and the first discharging tube 43 of expansion buffer tank 4 is connected with the top of knockout drum 72 obliquely, and oil exit pipe 73 is arranged on the top circle centre position of knockout drum 72, and link inserts in knockout drum 72, sand removing hole 74 is arranged on the tapered bottom end of the bottom of knockout drum 72.
Enter in the liquid of liquid-solid separator 7 at expansion buffer tank 4, larger particle has been inflated surge tank 4 and has departed from, leave standstill after liquid with certain speed and the mode tangent with the central axis of knockout drum 72 enter, the inner circumferential sidewall of itself and knockout drum 72 forms the angle that is beneficial to liquid in rotation, this angle can be less than 90 degree, and the first discharging tube 43 can be 10 ~ 30 degree with the inwall angle in the horizontal direction of knockout drum 72.Crude oil rotates around its axial line in knockout drum 72, and in rotary course, the silt particle in crude oil by the side-walls of getting rid of to knockout drum 72, and to decline in a spiral manner gradually under centrifugal action, is finally discharged by the sand removing hole 74 bottom knockout drum 72.Then under centrifugal force gather the axial line place in knockout drum 72 containing the crude oil that silt particle is less, be then expelled to connected second discharging tube 71 by oil exit pipe 73.
In an embodiment of the present invention, enough hybrid powers are had when entering blender 1 for making crude oil, avoid flow velocity too fast again and occur the phenomenon that separating effect is undesirable, needing crude oil speeds control producing well being entered blender 1 in the limit that desanding device can process.Here desanding device can be the filtration system after the series connection of many cover filtration groups.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1. an oil field ground desanding device, is characterized in that, comprising:
Blender, for connecting well head and thermal medium mouthpiece, to export after the crude oil mixing heating and viscosity reducing entered;
Expansion buffer tank, comprise tank body that is hollow and sealing, described tank body is provided with the feed tube be connected with described blender, the stack of discharging former oil dissolved gas is provided with at top, be provided with the first row sandpipe of discharging and leaving standstill postprecipitation silt particle in bottom, be provided with first discharging tube of discharging preliminary sedimentation crude oil in side;
Liquid-solid separator, is connected with described first discharging tube, and it carries out liquid-solid centrifugation by the mode of eddy flow to the crude oil received, and is provided with the second discharging tube that discharge is separated rear crude oil at top, is provided with the solid receiving magazine receiving and be separated rear silt particle in bottom.
2. oil field ground desanding device according to claim 1, is characterized in that,
The bottom of described solid receiving magazine is provided with second row sandpipe, and described second row sandpipe is connected with described first row sandpipe, and silt particle is delivered to silt particle treating apparatus by the described first row sandpipe after connection and second row sandpipe.
3. oil field ground desanding device according to claim 2, is characterized in that,
The port of export of described gland steam exhauster is connected by gas-liquid mixing machine with the body of described liquid discharge tube, and the liquid that described liquid discharge tube is discharged becomes gas-liquid mixed state.
4. oil field ground desanding device according to claim 1, is characterized in that,
The exit of described second discharging tube is provided with the force (forcing) pump improving Crude Oil Transportation pressure.
5. oil field ground desanding device according to claim 1, is characterized in that,
The medium of described thermal medium mouthpiece input is hot water, steam or dilution medicament.
6. oil field ground desanding device according to claim 1, is characterized in that,
Described expansion buffer tank and described liquid-solid separator form a desanding device, are provided with multiple described desanding device in a described desanding device, and each described desanding device is connected in series.
7. oil field ground desanding device according to claim 1, is characterized in that,
Described solid receiving magazine is the infundibulate of top to bottom Stepwize Shrink, and the connector diameter of described solid receiving magazine and described liquid-solid separator is 1/4 ~ 1/6 of described solid receiving magazine upper diameter.
8. oil field ground desanding device according to claim 2, is characterized in that,
The pipeline exporting described silt particle cleaning device to of described first row sandpipe and described second row sandpipe is provided with sand transport device, and described sand transport device is the auger with screw blade.
9. oil field ground desanding device according to claim 1, is characterized in that,
Described liquid-solid separator comprises knockout drum, oil exit pipe and sand removing hole, the top of described knockout drum is cylindrical lower portion is the taper of shrinking, described first discharging tube is connected with the top of described knockout drum obliquely, described oil exit pipe is arranged on the top circle centre position of described knockout drum and link inserts in described knockout drum, and described sand removing hole is arranged on the conical outlet place of described knockout drum bottom.
10. oil field ground desanding device according to claim 9, is characterized in that,
The inwall angle in the horizontal direction of described first discharging tube and described knockout drum is 10 ~ 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111763.2A CN105545278A (en) | 2016-02-29 | 2016-02-29 | Oil field surface desanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111763.2A CN105545278A (en) | 2016-02-29 | 2016-02-29 | Oil field surface desanding device |
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| Publication Number | Publication Date |
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| CN105545278A true CN105545278A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610111763.2A Pending CN105545278A (en) | 2016-02-29 | 2016-02-29 | Oil field surface desanding device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888634A (en) * | 2016-06-20 | 2016-08-24 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum mechanical device suitable for thickened oil recovery |
| CN113431549A (en) * | 2021-08-04 | 2021-09-24 | 北京中海沃邦能源投资有限公司石楼分公司 | Automatic liquid-discharging sand-removing separator |
| CN115197744A (en) * | 2022-06-28 | 2022-10-18 | 中国矿业大学 | System for removing water and sand debris from ground thickened oil and oil-water separation method thereof |
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| CN201923930U (en) * | 2010-10-28 | 2011-08-10 | 上海龙宇燃油股份有限公司 | Device for reclaiming and utilizing oil sludge at bottom of heavy oil tank |
| CN104060977A (en) * | 2013-06-28 | 2014-09-24 | 中国石油天然气股份有限公司 | Multi-phase cyclone desander and multi-phase cyclone desanding method |
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- 2016-02-29 CN CN201610111763.2A patent/CN105545278A/en active Pending
Patent Citations (6)
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| US5485728A (en) * | 1985-12-26 | 1996-01-23 | Enertech Environmental, Inc. | Efficient utilization of chlorine and moisture-containing fuels |
| CN2136073Y (en) * | 1992-08-27 | 1993-06-16 | 中国科学院力学研究所 | High-efficient closed sand remover for storage and transportation of crude oil |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888634A (en) * | 2016-06-20 | 2016-08-24 | 安庆宜源石油机械配件制造有限责任公司 | Petroleum mechanical device suitable for thickened oil recovery |
| CN113431549A (en) * | 2021-08-04 | 2021-09-24 | 北京中海沃邦能源投资有限公司石楼分公司 | Automatic liquid-discharging sand-removing separator |
| CN115197744A (en) * | 2022-06-28 | 2022-10-18 | 中国矿业大学 | System for removing water and sand debris from ground thickened oil and oil-water separation method thereof |
| CN115197744B (en) * | 2022-06-28 | 2023-09-19 | 中国矿业大学 | System for removing water and sand scraps from ground thickened oil and oil-water separation method thereof |
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Application publication date: 20160504 |