CN209875134U - Foam-assisted oxygen reduction air driving distribution valve bank - Google Patents
Foam-assisted oxygen reduction air driving distribution valve bank Download PDFInfo
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- CN209875134U CN209875134U CN201920512050.6U CN201920512050U CN209875134U CN 209875134 U CN209875134 U CN 209875134U CN 201920512050 U CN201920512050 U CN 201920512050U CN 209875134 U CN209875134 U CN 209875134U
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Abstract
The utility model relates to a field, concretely relates to oil field ground engineering field, concretely relates to supplementary oxygen reduction air of foam drives distribution valves, the high pressure that comes through the gas injection station gets into the high pressure pipeline of admitting air and passes through electric ball valve, first pressure transmitter, first nozzle gas flowmeter, get into the gas injection manifold behind the first ball valve, the high pressure pipeline of admitting air is connected with first pressure transmitter between electric ball valve and first nozzle gas flowmeter and is convenient for monitor the pressure of admitting air, connect the unloading blowdown of third ball valve as the gas injection manifold on the gas injection manifold, then through unloading pipeline intercommunication and station outside unloading pipeline intercommunication unloading blowdown.
Description
Technical Field
The utility model relates to an oil field ground engineering field, concretely relates to supplementary oxygen reduction air of foam drives distribution valves.
Background
At present, most of water-drive oil reservoirs enter the middle and later development stages, the water content of oil fields is high, the water-drive control degree is low, and the crude oil recovery rate needs to be further improved by developing a tertiary oil recovery technology. The foam assisted oxygen reduction air flooding is used as an effective recovery ratio improving technology, small-scale experimental development is carried out on part of oil fields, and a good development effect is achieved.
The foam-assisted oxygen-reduction air flooding technology for improving the recovery rate is characterized in that air flooding and foam flooding are organically combined, foam is used as a profile control agent, air is used as an oil displacement agent, and the oil displacement is carried out while the profile control is carried out, so that the dual functions of profile control and oil displacement are achieved, the dual advantages of air displacement and foam displacement are integrated, and the defect that air is easy to cause gas channeling in air displacement is overcome. The air is used as the air source of the foam-assisted oxygen-reduction air drive, the source is sufficient, the cost is low, and the application space is wide.
At present, most of mine tests of foam-assisted oxygen reduction air flooding in partial oil fields adopt temporary skid-mounted equipment and operate in a single-machine single-well independent gas distribution mode, so that the injection sites are multiple, the safety risk is high, and the development cost is high. When the foam assisted oxygen-reduction air flooding enhanced oil recovery technology is applied to oil fields on a large scale, in order to facilitate management, save investment and reduce safety risk, centralized gas distribution needs to be carried out on each injection well.
Therefore, it is necessary to provide a gas distribution valve set to realize the functions of automatic distribution, regulation control, display, data uploading, display of gas injection pressure, alarm, data uploading, indoor oxygen content monitoring, etc. of the gas injection flow of each injection well. Therefore, the problems of rapid construction, integral relocation and reutilization of main process equipment in the oilfield development process are solved.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a supplementary oxygen reduction air of foam drives distribution valves. The utility model relates to a distribution valves is originally carried out the batch production and is prefabricated, and its biggest characteristics just can wholly move, reuse, install fast, shorten characteristics such as construction cycle.
The utility model provides a technical problem can adopt following technical scheme to realize:
the utility model provides a supplementary oxygen reduction air drive distribution valves of foam, includes the high pressure pipeline of admitting air at least, still includes the gas injection manifold, injects well gas distribution pipeline, electronic ball valve, first pressure transmitter, first nozzle gas flowmeter, first ball valve, single well gas distribution pipeline, second ball valve, fourth ball valve, third ball valve and unloading pipeline, the high pressure pipeline of admitting air loops through electronic ball valve, first nozzle gas flowmeter and first ball valve and gas injection manifold one end intercommunication, and the gas injection manifold other end passes through third ball valve and unloading pipeline intercommunication, is connected first pressure transmitter between electronic ball valve and the first nozzle gas flowmeter, still is connected with injection well gas distribution pipeline on the gas injection manifold, injects well gas distribution pipeline through second ball valve and single well gas distribution pipeline intercommunication, still injects well gas distribution pipeline and second ball valve between well gas distribution pipeline and the fourth ball valve and unloading pipeline intercommunication.
Injection well gas distribution pipeline include first governing valve, third stop valve, third pressure transmitter, second nozzle gas flowmeter, the check valve, fourth stop valve and fourth pressure transmitter, the one end and the gas injection manifold intercommunication of first governing valve, the other end of first governing valve in proper order with second nozzle gas flowmeter and check valve intercommunication, the check valve is through second ball valve and single well gas distribution pipeline intercommunication, still be connected with third pressure transmitter between first governing valve and the second nozzle gas flowmeter, be connected fourth pressure transmitter between check valve and the second ball valve.
And the air inlet end of the third pressure transmitter is connected with a third stop valve, the air inlet end of the fourth pressure transmitter is connected with a fourth stop valve, and the fourth stop valve is communicated with the second ball valve through a fourth ball valve and an emptying pipeline.
And the air inlet pipeline of the first pressure transmitter is connected with a first stop valve.
The injection well gas distribution pipeline is provided with more than two groups.
The gas injection manifold on still be connected with second pressure transmitter, second pressure transmitter's air inlet pipeline connects the second stop valve.
The design pressure of the gas distribution valve group is 16-32 MPa.
Each group of injection well gas distribution pipelines corresponds to one injection well.
The foam-assisted oxygen reduction air driving distribution valve group further comprises a skid seat, and a high-pressure air inlet pipeline, an air injection manifold, an injection well distribution pipeline, an electric ball valve, a first ball valve, a single well distribution pipeline, a second ball valve, a fourth ball valve, a third ball valve and an emptying pipeline are integrated on the skid seat in a skid manner.
The utility model has the advantages that:
compared with the prior art, the utility model has the advantages that the high-pressure incoming gas of the gas injection station enters the high-pressure gas inlet pipeline, passes through the electric ball valve, the first pressure transmitter, the first nozzle gas flowmeter and the first ball valve and then enters the gas injection manifold, the first pressure transmitter is connected between the electric ball valve and the first nozzle gas flowmeter for monitoring the pressure of the incoming gas, the gas injection manifold is connected with the third ball valve for emptying and discharging the gas as the gas injection manifold, and then is communicated with the station outside emptying pipeline for emptying and discharging the gas through the emptying pipeline, the gas injection manifold is connected with the gas injection well distribution pipeline, the gas injection well distribution pipeline is communicated with the single well distribution pipeline through the second ball valve, the gas injection well distribution pipeline is communicated with the emptying pipeline through the fourth ball valve between the second ball valve and the injection well distribution pipeline, the gas distribution pipeline is emptied and discharged, the fourth ball valve is convenient for equipment maintenance and pipe emptying during maintenance, the injection well gas distribution pipeline on the gas injection manifold is one-to-one, namely each injection well gas distribution pipeline corresponds to one injection well, so that the injection parameters of the injection wells are prevented from interfering with each other, and the gas injection of the injection wells is ensured to be stable.
The utility model discloses a distribution valves has the monitoring, measurement and the accumulation of incoming gas flow, and incoming gas pressure monitoring, single well gas injection flow's monitoring, measurement and accumulation, single well gas injection pressure monitoring, functions such as indoor oxygen content monitoring satisfy gas injection system and concentrate the distribution requirement.
The utility model discloses an instrument measurement part adopts nozzle gas flowmeter to measure, cooperates governing valve, pressure transmitter etc. simultaneously, not only can show single well gas injection flow data in real time, can also realize that the automatic allocation of gas injection flow, regulation control, demonstration, data upload etc. function data.
The utility model discloses an all be equipped with the unified external row of unloading pipeline to distribution valves outside on gas injection manifold and each single-well gas distribution pipeline, make things convenient for overhaul of the equipments, maintenance, guarantee oxygen content in the distribution valves, ensure personal safety.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the process flow structure of the present invention.
In the figure: 1. a high pressure gas inlet line; 2. an electric ball valve; 3. a first shut-off valve; 4. a first pressure transmitter; 5. A first nozzle gas flow meter; 6. a first ball valve; 7. a gas injection manifold; 8. a second stop valve; 9. a second pressure transmitter; 10. a first regulating valve; 11. a third stop valve; 12. a third pressure transmitter; 13. a second nozzle gas flow meter; 14. a check valve; 15. a fourth stop valve; 16. a fourth pressure transmitter; 17. A second ball valve; 18. a single well gas distribution line; 19. a third ball valve; 20. a fourth ball valve; 21. an emptying pipeline; 22. an oxygen content monitor; 23. a junction box; 24. and a forced air outlet.
Detailed Description
Example 1:
referring to fig. 1, which is a schematic structural diagram of embodiment 1 of the present invention, a foam assisted oxygen reduction air driving valve group at least comprises a high-pressure air inlet pipeline 1, and further comprises an air injection manifold 7, an injection well air distribution pipeline, an electric ball valve 2, a first pressure transmitter 4, a first nozzle gas flowmeter 5, a first ball valve 6, a single well air distribution pipeline 18, a second ball valve 17, a fourth ball valve 20, a third ball valve 19 and a vent pipeline 21, wherein the high-pressure air inlet pipeline 1 is communicated with one end of the air injection manifold 7 through the electric ball valve 2, the first nozzle gas flowmeter 5 and the first ball valve 6 in sequence, the other end of the air injection manifold 7 is communicated with the vent pipeline 21 through the third ball valve 19, the first pressure transmitter 4 is connected between the electric ball valve 2 and the first nozzle gas flowmeter 5, the injection well air distribution pipeline is further connected to the air injection manifold 7, the air distribution pipeline is communicated with the single well air distribution pipeline 18 through the second ball valve 17, the injection well gas distribution line is also in communication with the second ball valve 17 via a fourth ball valve 20 with a vent line 21.
In actual use: high-pressure incoming gas of a gas injection station enters a high-pressure gas inlet pipeline 1 and enters a gas injection manifold 7 through an electric ball valve 2, a first pressure transmitter 4, a first nozzle gas flowmeter 5 and a first ball valve 6, the high-pressure gas inlet pipeline 1 is connected with the first pressure transmitter 4 between the electric ball valve 2 and the first nozzle gas flowmeter 5 so as to be convenient for monitoring the pressure of the incoming gas, a third ball valve 19 is connected to the gas injection manifold 7 to be used for emptying and blowdown of the gas injection manifold 7, then the high-pressure gas inlet pipeline is communicated with an out-of-station emptying pipeline through an emptying pipeline 21 to be communicated with the emptying pipeline, an injection well gas distribution pipeline is connected to the gas injection manifold 7 and is communicated with a single well gas distribution pipeline 18 through a second ball valve 17, the injection well gas distribution pipeline is communicated with the second ball valve 17 through a fourth ball valve 20 to be communicated with the emptying pipeline 21 to empty the injection well gas distribution pipeline for blowdown, and the fourth ball valve 20 is convenient for emptying the pipeline during maintenance and overhaul, the injection well gas distribution lines on the gas injection manifold 7 are one-to-one, namely each injection well gas distribution line corresponds to one injection well, so that the injection parameters of the injection wells are prevented from interfering with each other, and the gas injection of the injection wells is ensured to be smooth.
Example 2:
the present embodiment is different from embodiment 1 in that: injection well gas distribution pipeline include first governing valve 10, third shutoff valve 11, third pressure transmitter 12, second nozzle gas flowmeter 13, check valve 14, fourth stop valve 15 and fourth pressure transmitter 16, the one end and the gas injection header 7 intercommunication of first governing valve 10, the other end of first governing valve 10 communicates with second nozzle gas flowmeter 13 and check valve 14 in proper order, check valve 14 is communicating through second ball valve 17 and single well gas distribution pipeline 18, still be connected with third pressure transmitter 12 between first governing valve 10 and the second nozzle gas flowmeter 13, be connected fourth pressure transmitter 16 between check valve 14 and the second ball valve 17.
Preferably, the air inlet end of the third pressure transmitter 12 is connected with the third stop valve 11, the air inlet end of the fourth pressure transmitter 16 is connected with the fourth stop valve 15, and the fourth stop valve 15 and the second ball valve 17 are communicated with the vent pipeline 21 through a fourth ball valve 20.
In actual use: the gas entering the gas injection manifold 7 passes through a first regulating valve 10, a third stop valve 11, a third pressure transmitter 12, a second nozzle gas flowmeter 13, a check valve 14, a fourth stop valve 15 and a fourth pressure transmitter 16, then enters a second ball valve 17 and then enters a single well gas distribution pipeline 18, the single well gas distribution pipeline 18 is communicated with an off-site gas injection pipeline, the third pressure transmitter 12 is connected between the first regulating valve 10 and the second nozzle gas flowmeter 13, the third pressure transmitter 12 is used for monitoring the pressure of the gas distribution pipeline of the injection well, the fourth pressure transmitter 16 is used for monitoring the pressure of the gas distribution pipeline 18 of the single well, the gas inlet end of the third pressure transmitter 12 is connected with the third stop valve 11, the gas inlet end of the fourth pressure transmitter 16 is connected with the fourth stop valve 15, the fourth stop valve 15 is connected with the second ball valve 17, wherein in the process of gas injection, the second nozzle gas flowmeter 13 transmits the real-time flow signal to the first regulating valve 10, and when the real-time flow of the second nozzle gas flowmeter 13 is not matched with the distribution amount, the first regulating valve 10 controls the flow size through the opening of the automatic regulating valve, so that the real-time flow of the second nozzle gas flowmeter 13 is matched with the distribution amount, and finally the injection distribution requirement of an injection well is met.
Example 3:
the present embodiment is different from embodiment 1 in that: and the air inlet pipeline of the first pressure transmitter 4 is connected with a first stop valve 3.
Preferably there are more than two sets of injection well gas distribution lines.
Preferably, the gas injection manifold 7 is further connected with a second pressure transmitter 9, and a gas inlet pipeline of the second pressure transmitter 9 is connected with a second stop valve 8.
Preferably, the design pressure of the air distribution valve group is 16-32 MPa.
Preferably each said set of injector well gas distribution lines corresponds to an injector well.
In actual use: the gas inlet pipeline of the first pressure transmitter 4 is connected with a first stop valve 3, the first stop valve 3 is used for controlling the gas inlet pipeline of the first pressure transmitter 4, more than two groups of gas distribution pipelines of the injection well are arranged to ensure that each injection well outside the station can perform foam-assisted oxygen reduction air driving and gas distribution, the gas injection manifold 7 is also connected with a second pressure transmitter 9, the gas inlet pipeline of the second pressure transmitter 9 is connected with a second stop valve 8, the second pressure transmitter 9 is convenient for monitoring the gas distribution pressure, the second stop valve 8 is used for controlling the gas inlet pipeline of the second pressure transmitter 9, aiming at different injection pressure conditions, the design pressure of the gas distribution valve group is 16-32 MPa, the normal operation of the whole gas distribution valve group is guaranteed, each group of injection well gas distribution pipeline corresponds to one injection well, the mutual interference of injection parameters of the injection wells is prevented, and the stability of gas injection of the injection wells is guaranteed.
Example 4:
the present embodiment is different from embodiment 1 in that: the high-pressure gas injection well is characterized by further comprising a skid seat, wherein the high-pressure gas inlet pipeline 1, the gas injection manifold 7, the gas distribution pipeline of the injection well, the electric ball valve 2, the first ball valve 6, the single-well gas distribution pipeline 18, the second ball valve 17, the fourth ball valve 20, the third ball valve 19 and the emptying pipeline 21 are integrated on the skid seat in a skid-mounted manner.
In actual use: the high-pressure air inlet pipeline 1, the air injection manifold 7, the injection well gas distribution pipeline, the electric ball valve 2, the first ball valve 6, the single well gas distribution pipeline 18, the second ball valve 17, the fourth ball valve 20, the third ball valve 19 and the emptying pipeline 21 are all integrated and skid-mounted on a skid seat, all skid-mounted devices are reasonably arranged in a color steel room, the color steel room can be integrally moved, reused and quickly mounted, the construction period is shortened, certain advantages are achieved, meanwhile, an oxygen content monitor 22 for detecting oxygen content, a wiring box 23 for wiring and a forced air outlet 24 for ventilation are reasonably arranged in the color steel room, the oxygen content monitor 22 is arranged in the color steel room, when the oxygen content in the color steel room is lower than 18%, the high-pressure air inlet pipeline 1 is emergently cut off, meanwhile, forced ventilation is achieved through the forced air outlet 24 in the color steel room, and personal safety is guaranteed.
Example 5:
a process method of a foam-assisted oxygen-reduction air-driving gas distribution valve group comprises the steps that when gas is injected, high-pressure incoming gas of a gas injection station enters a high-pressure gas inlet pipeline 1 and enters a gas injection manifold 7 through an electric ball valve 2, a first pressure transmitter 4, a first nozzle gas flowmeter 5 and a first ball valve 6, the gas passes through an injection well gas distribution pipeline of a multi-port injection well connected to the gas injection manifold 7, the gas passing through the injection well gas distribution pipeline sequentially passes through a first regulating valve 10, a third pressure transmitter 12, a second nozzle gas flowmeter 13, a check valve 14, a fourth pressure transmitter 16 and a second ball valve 17 and is communicated with an off-station single-well gas distribution pipeline through a single-well gas distribution pipeline 18, wherein the gas injection manifold 7 and the emptying of each single-well gas distribution pipeline 18 are communicated with an emptying pipeline 21, and are communicated with an out-station discharge pipeline through the emptying pipeline 21 for uniform discharge.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all such changes are within the scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Technical solutions between various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Claims (9)
1. The utility model provides a supplementary oxygen air that subtracts of foam drives air distribution valves, includes high pressure air inlet pipeline (1) at least, characterized by: the high-pressure gas injection manifold comprises a gas injection manifold (7), a gas distribution pipeline of an injection well, an electric ball valve (2), a first pressure transmitter (4), a first nozzle gas flowmeter (5), a first ball valve (6), a single well gas distribution pipeline (18), a second ball valve (17), a fourth ball valve (20), a third ball valve (19) and a vent pipeline (21), wherein the high-pressure gas inlet pipeline (1) is communicated with one end of the gas injection manifold (7) through the electric ball valve (2), the first nozzle gas flowmeter (5) and the first ball valve (6) in sequence, the other end of the gas injection manifold (7) is communicated with the vent pipeline (21) through the third ball valve (19), the first pressure transmitter (4) is connected between the electric ball valve (2) and the first nozzle gas flowmeter (5), the gas injection manifold (7) is also connected with the gas distribution pipeline of the injection well, and the gas distribution pipeline of the injection well is communicated with the single well gas distribution pipeline (18) through the second ball valve (17), the injection well gas distribution line is also communicated with the second ball valve (17) through a fourth ball valve (20) and a vent line (21).
2. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 1, further comprising: injection well gas distribution pipeline include first governing valve (10), third stop valve (11), third pressure transmitter (12), second nozzle gas flowmeter (13), check valve (14), fourth stop valve (15) and fourth pressure transmitter (16), the one end and the gas injection header (7) of first governing valve (10) communicate, the other end of first governing valve (10) communicate with second nozzle gas flowmeter (13) and check valve (14) in proper order, check valve (14) are in communicating through second ball valve (17) and single well gas distribution pipeline (18), still be connected with third pressure transmitter (12) between first governing valve (10) and second nozzle gas flowmeter (13), be connected fourth pressure transmitter (16) between check valve (14) and second ball valve (17).
3. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 2, wherein: the air inlet end of the third pressure transmitter (12) is connected with a third stop valve (11), the air inlet end of the fourth pressure transmitter (16) is connected with a fourth stop valve (15), and the fourth stop valve (15) is communicated with the second ball valve (17) through a fourth ball valve (20) and an emptying pipeline (21).
4. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 1, further comprising: and an air inlet pipeline of the first pressure transmitter (4) is connected with a first stop valve (3).
5. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 1, further comprising: the injection well gas distribution pipeline is provided with more than two groups.
6. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 1, further comprising: the gas injection manifold (7) on still be connected with second pressure transmitter (9), connect second stop valve (8) on the intake pipe way of second pressure transmitter (9).
7. The foam assisted oxygen reduction air drive air distribution valve block as recited in claim 1, further comprising: the design pressure of the gas distribution valve group is 16-32 MPa.
8. The foam assisted oxygen reduction air drive air distribution valve block of claim 4, wherein: each group of injection well gas distribution pipelines corresponds to one injection well.
9. A foam assisted oxygen reduction air actuated valve pack according to any one of claims 1 to 8 wherein: the high-pressure gas injection well is characterized by further comprising a skid seat, wherein the high-pressure gas inlet pipeline (1), the gas injection manifold (7), the gas distribution pipeline of the injection well, the electric ball valve (2), the first ball valve (6), the single-well gas distribution pipeline (18), the second ball valve (17), the fourth ball valve (20), the third ball valve (19) and the emptying pipeline (21) are all integrated and skid-mounted on the skid seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512050.6U CN209875134U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving distribution valve bank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512050.6U CN209875134U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving distribution valve bank |
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| Publication Number | Publication Date |
|---|---|
| CN209875134U true CN209875134U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920512050.6U Active CN209875134U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving distribution valve bank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029971A (en) * | 2019-04-15 | 2019-07-19 | 西安长庆科技工程有限责任公司 | A kind of foam auxiliary phlogisticated air drives distribution valve group and process |
-
2019
- 2019-04-15 CN CN201920512050.6U patent/CN209875134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029971A (en) * | 2019-04-15 | 2019-07-19 | 西安长庆科技工程有限责任公司 | A kind of foam auxiliary phlogisticated air drives distribution valve group and process |
| CN110029971B (en) * | 2019-04-15 | 2023-08-08 | 西安长庆科技工程有限责任公司 | Foam-assisted oxygen reduction air driving valve group and process method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201027 Address after: 710018 Shaanxi province Xi'an Weiyang road Fengcheng four Changqing building Patentee after: XI'AN CHANGQING TECHNOLOGY ENGINEERING Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 710018 Shaanxi city of Xi'an province Fengcheng Weiyang District four building 1809 Changqing Road Patentee before: XI'AN CHANGQING TECHNOLOGY ENGINEERING Co.,Ltd. |
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