CN203188986U - Low-permeability oil field skid-mounted movable liquid CO2 injecting device - Google Patents
Low-permeability oil field skid-mounted movable liquid CO2 injecting device Download PDFInfo
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- CN203188986U CN203188986U CN 201320180057 CN201320180057U CN203188986U CN 203188986 U CN203188986 U CN 203188986U CN 201320180057 CN201320180057 CN 201320180057 CN 201320180057 U CN201320180057 U CN 201320180057U CN 203188986 U CN203188986 U CN 203188986U
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Abstract
The utility model relates to a low-permeability oil field skid-mounted movable liquid CO2 injecting device. The device at least comprises an injecting pump (1) arranged inside an equipment room, and is characterized in that the inlet end of the injecting pump (1) is fixedly connected with a liquid inlet pipeline (2), the outlet end of the injecting pump (1) is fixedly connected with an injecting pipeline (3) and a return pipeline (4), a liquid inlet valve (5) is arranged on the liquid inlet pipeline (2), a return valve (6) is arranged on the return pipeline (4), and an outlet valve (7) is arranged on the injecting pipeline (3). The device can be suitable for injecting implementation of displacement of reservoir oil or huff and puff of liquid CO2 of one to three wells which are close, connection of pipelines, installation of equipment and the like are easy and convenient, operability is strong, the device is good in transportation performance and strong in applicability, transformation is convenient, maintenance and improvement are easy, and the device is conveniently used for oil fields in areas with bad traffic, such as mountainous areas. The injection discharge capacity of each well can be adjusted according to the discharge capacity of the injecting pump, and is flexible and easy to adjust.
Description
Technical field
The utility model relates to injection device field, oil field, particularly the portable liquid CO of a kind of low permeability oil field skid
2Injection device.
Background technology
China's North Shaanxi low permeability oil field is located in the center, Eurasia, the weather arid, water resource is deficient relatively, and entered waterflood stage as the petroleum resources exploitation of northern Shensi key industry, in the waterflooding extraction process, usually there are problems such as insufficient water sources, notes do not advance, the new technology that must seek other feasible additional stratum energies.Gas injection development is the effective measures of LOW PERMEABILITY OILFIELD DEVELOPMENT, says the market-ripe stage that reaches from technological layer.Along with northern Shensi derived energy chemical construction of base, the following CO of this area
2Source of the gas is abundant, for large tracts of land is carried out liquid CO
2The displacement of reservoir oil provides the source of the gas guarantee.
Summary of the invention
The purpose of this utility model provides a kind of for the liquid CO of 1 to 3 small-scale that well group uses simultaneously
2The displacement of reservoir oil or the portable liquid CO of low permeability oil field skid that handles up and inject use
2Injection device, this device pipeline connection, equipment installation etc. are simple and easy to do, workable.
The technical scheme that its technical problem that solves the utility model adopts is: the portable liquid CO of a kind of low permeability oil field skid
2Injection device, which comprises at least the injection pump that places in the equipment room, it is characterized in that: the arrival end of injection pump is fixedlyed connected with the feed liquor pipeline, the port of export of injection pump is fixedlyed connected with injection pipeline and reflux pipeline, be furnished with the feed liquor valve on the feed liquor pipeline, be furnished with return valve on the reflux pipeline, be furnished with outlet valve on the injection pipeline.
One end of described feed liquor pipeline is fixedlyed connected with the arrival end of injection pump, the other end of feed liquor pipeline and liquid CO
2The storage tank thread seal connects.
One end of described injection pipeline is fixedlyed connected with the port of export of injection pump, and the other end that injects pipeline is connected with well head, injects between pipeline upper outlet valve and the well head also to be furnished with safety valve and flap valve.
One end of described reflux pipeline is fixedlyed connected with the port of export of injection pump, and the other end of reflux pipeline then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, and recycle control valve is arranged in the port of the end that refluxes; Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve.
Described injection pump is three groups, an end of feed liquor pipeline and liquid CO
2The storage tank thread seal connects, and the junction is furnished with total feed liquor valve, and the other end of feed liquor pipeline is fixedlyed connected respectively with the arrival end of every group of injection pump, and the arrival end of feed liquor pipeline and every group of injection pump is all arranged a feed liquor valve.
The port of export of described three groups of injection pumps respectively injects pipeline by one and is connected with three well heads respectively, and the port of export to the uphole end by injection pump on every injection pipeline all is furnished with outlet valve, safety valve and flap valve successively.
The port of export of described three groups of injection pumps also all is connected on the reflux pipeline, one end of reflux pipeline is divided into three ports and fixedlys connected with the port of export of three groups of injection pumps respectively, a return valve is all arranged in the junction of every group of injection pump and reflux pipeline, the other end of reflux pipeline then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, this port and liquid CO
2The junction of storage tank is furnished with recycle control valve; Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve.
The beneficial effects of the utility model are: the portable liquid CO of low permeability oil field skid
2Injection device, by at the fixedly connected feed liquor pipeline of the arrival end of a plurality of injection pumps, the fixedly connected injection pipeline of the port of export of a plurality of injection pumps and reflux pipeline, this device can be applicable to the liquid CO of 1 to 3 close together well group
2The displacement of reservoir oil or the injection implementation of handling up, pipeline connection, equipment installation etc. are simple and easy to do, workable, and device movement performance is good, applicability is strong, and it is convenient to transform, and is easy to maintenance and perfect, is convenient to use in the disadvantageous oil field of traffic such as mountain area; The injection discharge capacity of every mouthful of well can be regulated according to the injection pump discharge capacity, easily transfers flexibly.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is further specified:
Fig. 1 is the utility model structural representation.
Among the figure: 1, injection pump; 2, feed liquor pipeline; 3, inject pipeline; 4, reflux pipeline; 5, feed liquor valve; 6, return valve; 7, outlet valve; 8, safety valve; 9, recycle control valve; 10, atmospheric valve; 11, total feed liquor valve; 12, flap valve; 13, well head.
The specific embodiment
Embodiment 1
As the portable liquid CO of this low permeability oil field skid of Fig. 1
2Shown in the injection device structural representation, which comprises at least the injection pump 1 that places in the equipment room, the arrival end of injection pump 1 is fixedlyed connected with feed liquor pipeline 2, the port of export of injection pump 1 is fixedlyed connected with injection pipeline 3 and reflux pipeline 4, be furnished with feed liquor valve 5 on the feed liquor pipeline 2, be furnished with return valve 6 on the reflux pipeline 4, be furnished with outlet valve 7 on the injection pipeline 3.
One end of feed liquor pipeline 2 is fixedlyed connected with the arrival end of injection pump 1, the other end of feed liquor pipeline 2 and liquid CO
2The storage tank thread seal connects.
An end that injects pipeline 3 is fixedlyed connected with the port of export of injection pump 1, and the other end that injects pipeline 3 is connected with well head 13, injects between pipeline 3 upper outlet valves 7 and the well head 13 also to be furnished with safety valve 8 and flap valve 12.
One end of reflux pipeline 4 is fixedlyed connected with the port of export of injection pump 1, and the other end of reflux pipeline 4 then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, and recycle control valve 9 is arranged in the port of the end that refluxes; Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve 10.
Formally carry out liquid CO
2Before the injection, at first close outlet valve 7 and atmospheric valve 10, open total feed liquor valve 11, feed liquor valve 5, return valve 6, recycle control valve 9 then, start liquid CO
2Storage tank carries canned motor pump, uses liquid CO
2Circulation cooling injection pump 1 when treating that tangible frost phenomenon appears in pump head, is opened outlet valve 7, and closing volume valve 6 starts injection pump 1, makes liquid CO
2The normal pit shaft that injects of beginning.
When the pressure that injects pipeline surpassed the pressure tolerance band of safety valve 8, safety valve 8 can be opened automatically, discharge line pressure, prevents that pipeline is because of the hypertonia explosion.The pressure-bearing of safety valve 8 can be selected as required.
The described structure of present embodiment is substantially the same manner as Example 1, and difference is three groups of injection pumps 1 are arranged, an end of feed liquor pipeline 2 and liquid CO in the equipment room
2The storage tank thread seal connects, the junction is furnished with total feed liquor valve 11, the other end of feed liquor pipeline 2 is fixedlyed connected respectively with the arrival end of every group of injection pump 1, and feed liquor pipeline 2 is all arranged a feed liquor valve 5 with the arrival end of every group of injection pump 1, controls the feed liquor situation of each injection pump 1 respectively.
The port of export of three groups of injection pumps 1 respectively injects pipeline 3 by one and is connected with three well heads 13 respectively, the every port of export to well head 13 ends that inject on the pipeline 3 by injection pump 1 all are furnished with outlet valve 7 successively, safety valve 8 and flap valve 12, the port of export of every group of injection pump 1 also all is connected on the reflux pipeline 4, one end of reflux pipeline 4 is divided into three ports and fixedlys connected with the port of export of three groups of injection pumps 1 respectively, every group of injection pump 1 all arranged a return valve 6 with the junction of reflux pipeline 4, the other end of reflux pipeline 4 then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, this port and liquid CO
2The junction of storage tank is furnished with recycle control valve 9; Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve 10.
This device can be applicable to the liquid CO of 1 to 3 close together well group
2The displacement of reservoir oil or the injection implementation of handling up.
The portable liquid CO of this low permeability oil field skid
2Injection device has following characteristics:
1, pipeline connection, equipment installation etc. are simple and easy to do, workable;
2, the injection discharge capacity of every mouthful of well can be regulated according to the gas injection pumpage, easily transfers flexibly;
3, every pump delivery can be different, inject simultaneously to be independent of each other;
4, plant modification is convenient, is easy to maintenance and perfect;
5, device movement performance is good, applicability is strong, is convenient to use in the disadvantageous oil field of traffic such as mountain area.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (7)
1. the portable liquid CO of a low permeability oil field skid
2Injection device, which comprises at least the injection pump (1) that places in the equipment room, it is characterized in that: the arrival end of injection pump (1) is fixedlyed connected with feed liquor pipeline (2), the port of export of injection pump (1) is fixedlyed connected with injection pipeline (3) and reflux pipeline (4), be furnished with feed liquor valve (5) on the feed liquor pipeline (2), be furnished with return valve (6) on the reflux pipeline (4), be furnished with outlet valve (7) on the injection pipeline (3).
2. the portable liquid CO of a kind of low permeability oil field skid according to claim 1
2Injection device is characterized in that: an end of described feed liquor pipeline (2) is fixedlyed connected with the arrival end of injection pump (1), the other end of feed liquor pipeline (2) and liquid CO
2The storage tank thread seal connects.
3. the portable liquid CO of a kind of low permeability oil field skid according to claim 1
2Injection device, it is characterized in that: an end of described injection pipeline (3) is fixedlyed connected with the port of export of injection pump (1), the other end that injects pipeline (3) is connected with well head (13), injects between pipeline (3) upper outlet valve (7) and the well head (13) also to be furnished with safety valve (8) and flap valve (12).
4. the portable liquid CO of a kind of low permeability oil field skid according to claim 1
2Injection device is characterized in that: an end of described reflux pipeline (4) is fixedlyed connected with the port of export of injection pump (1), and the other end of reflux pipeline (4) then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, and recycle control valve (9) is arranged in the port of the end that refluxes; Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve (10).
5. the portable liquid CO of a kind of low permeability oil field skid according to claim 1
2Injection device is characterized in that: described injection pump (1) is three groups, an end of feed liquor pipeline (2) and liquid CO
2The storage tank thread seal connects, the junction is furnished with total feed liquor valve (11), the other end of feed liquor pipeline (2) is fixedlyed connected respectively with the arrival end of every group of injection pump (1), and feed liquor pipeline (2) is all arranged a feed liquor valve (5) with the arrival end of every group of injection pump (1).
6. the portable liquid CO of a kind of low permeability oil field skid according to claim 5
2Injection device, it is characterized in that: the port of export of described three groups of injection pumps (1) respectively injects pipeline (3) by one and is connected with three well heads (13) respectively, and every is injected pipeline (3) and upward all is furnished with outlet valve (7), safety valve (8) and flap valve (12) successively by the port of export to well head (13) end of injection pump (1).
7. the portable liquid CO of a kind of low permeability oil field skid according to claim 5
2Injection device, it is characterized in that: the port of export of described three groups of injection pumps (1) also all is connected on the reflux pipeline (4), one end of reflux pipeline (4) is divided into three ports and fixedlys connected with the port of export of three groups of injection pumps (1) respectively, every group of injection pump (1) all arranged a return valve (6) with the junction of reflux pipeline (4), the other end of reflux pipeline (4) then is divided into two ports, one of them port and liquid CO
2The storage tank thread seal connects, and constitutes the end that refluxes, this port and liquid CO
2The junction of storage tank is furnished with recycle control valve (9); Another port is then as the emptying end, and the port position of emptying end is furnished with atmospheric valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180057 CN203188986U (en) | 2013-04-11 | 2013-04-11 | Low-permeability oil field skid-mounted movable liquid CO2 injecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180057 CN203188986U (en) | 2013-04-11 | 2013-04-11 | Low-permeability oil field skid-mounted movable liquid CO2 injecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203188986U true CN203188986U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180057 Expired - Fee Related CN203188986U (en) | 2013-04-11 | 2013-04-11 | Low-permeability oil field skid-mounted movable liquid CO2 injecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203188986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899284A (en) * | 2014-03-05 | 2014-07-02 | 陕西延长石油(集团)有限责任公司研究院 | Movable liquid CO2 injection skid-mounted device |
| CN106089176A (en) * | 2016-08-16 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of liquid nitrogen continuous liquid supply low-pressure manifold device with pressure |
-
2013
- 2013-04-11 CN CN 201320180057 patent/CN203188986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899284A (en) * | 2014-03-05 | 2014-07-02 | 陕西延长石油(集团)有限责任公司研究院 | Movable liquid CO2 injection skid-mounted device |
| CN106089176A (en) * | 2016-08-16 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of liquid nitrogen continuous liquid supply low-pressure manifold device with pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180411 |