CN209875133U - Foam-assisted oxygen reduction air driving injection valve group - Google Patents
Foam-assisted oxygen reduction air driving injection valve group Download PDFInfo
- Publication number
- CN209875133U CN209875133U CN201920511501.4U CN201920511501U CN209875133U CN 209875133 U CN209875133 U CN 209875133U CN 201920511501 U CN201920511501 U CN 201920511501U CN 209875133 U CN209875133 U CN 209875133U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- liquid
- gas
- injection
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Nozzles (AREA)
Abstract
The utility model relates to an oil field ground engineering field, concretely relates to supplementary oxygen reduction air of foam drives injection valve group of joining in marriage, through when carrying out gaseous phase medium injection and liquid phase medium injection, when gaseous phase medium is injected at first, gaseous phase injection station high pressure comes the gas and gets into the air inlet pipeline of joining in marriage liquid valve group, then get into out the gas pipeline through the gas injection manifold, gaseous branch end entry that gets into static mixer, when liquid phase medium is injected, gaseous phase injection station high pressure comes liquid and gets into the feed liquor pipeline of joining in marriage liquid valve group, then get into out the liquid pipeline through annotating the liquid manifold, liquid gets into static mixer's mainstream end entry, after gaseous phase medium and liquid phase medium mix in static mixer, get into single well injection pipeline from static mixer's exit end, single well injection pipeline and the station outer injection pipeline that joins in marriage feeds through.
Description
Technical Field
The utility model relates to an oil field ground engineering field, concretely relates to supplementary oxygen reduction air of foam drives and joins in marriage notes 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 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 profile control and oil displacement are carried out simultaneously. 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.
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. 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 injection allocation mode, so that the injection sites are multiple, the safety risk is high, and the development cost is high; meanwhile, the gas phase and the liquid phase are injected respectively according to a slug mode, and indoor physical simulation experiment research shows that the continuous injection of the mixed gas phase and liquid phase can improve the crude oil recovery ratio to a greater extent. Therefore, when the foam assisted oxygen-reducing air flooding enhanced recovery technology is popularized and applied in oil fields on a large scale, in order to economically and efficiently develop oil reservoirs, facilitate management, reduce safety risks and save investment, oxygen-reducing air centralized distribution and foam liquid centralized distribution are required to be carried out on each injection well, and ground engineering construction is carried out in the most economical and efficient mode.
Therefore, an object of the utility model is to provide a supplementary oxygen reduction air of foam drives and joins in marriage injection valves realizes that each injection well subtracts oxygen air, foam liquid flow's automatic allocation, regulation control, demonstration, data upload and gas injection, annotate liquid pressure's demonstration, warning, data upload and indoor oxygen content monitoring function. For solving the main process equipment quick construction in the oil field development process, wholly remove and reuse's problem, the utility model relates to a join in marriage notes valves and carry out the batch production prefabrication, its biggest characteristics just are one set of join in marriage notes valves and can realize the injection system subtract oxygen air distribution, foam liquid and join in marriage the liquid function, can wholly remove simultaneously, reuse, install fast, shorten the construction cycle, reduce area, reduce the engineering investment, have better superiority.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides one kind can wholly move, reuse, install fast, shortens the construction cycle, reduces area, reduces the supplementary oxygen reduction air of foam of engineering investment and drives and join in marriage notes valves, especially a supplementary oxygen reduction air of foam drives and joins in marriage notes valves.
The utility model provides a technical problem can adopt following technical scheme to realize:
a foam-assisted oxygen-reduction air-driven injection valve set comprises
The gas injection manifold is connected with the gas outlet pipeline and the gas phase emptying pipeline, and the gas phase emptying pipeline is communicated with an external gas phase discharge pipeline outside the station;
the liquid distribution valve group comprises a liquid inlet pipeline, a liquid injection manifold, a liquid outlet pipeline and a liquid phase emptying pipeline, wherein one end of the liquid inlet pipeline is communicated with a high-pressure liquid inlet pipeline of a liquid injection station, the other end of the liquid inlet pipeline is communicated with the liquid injection manifold, the liquid outlet pipeline and the liquid phase emptying pipeline are connected to the liquid injection manifold, and the liquid phase emptying pipeline is communicated with an out-station liquid phase discharge pipeline;
the device comprises a gas-liquid two-phase mixing valve group, a static mixer and a single-well injection allocation pipeline, wherein the static mixer comprises a branch end inlet, a main flow end inlet and an outlet end, the branch end inlet of the static mixer is communicated with an air outlet pipeline of the gas distribution valve group, the main flow end inlet of the static mixer is communicated with a liquid outlet pipeline of the liquid distribution valve group, the outlet end of the static mixer is communicated with the single-well injection allocation pipeline, and the single-well injection allocation pipeline is communicated with an off-station injection well injection allocation pipeline.
The gas inlet pipeline in the gas distribution valve group comprises a high-pressure gas inlet pipeline, an electric ball valve, a first pressure transmitter, a first nozzle gas flow meter and a first ball valve, the gas outlet pipeline in the gas distribution valve group comprises an injection well gas distribution pipeline, a second ball valve, a single well gas distribution pipeline, a fourth ball valve and a third ball valve, the inlet pipeline of the high-pressure gas inlet pipeline is communicated with a high-pressure gas inlet pipeline of a gas injection station, the outlet pipeline of the high-pressure gas inlet pipeline is communicated with one end of a gas injection manifold through the electric ball valve, the first nozzle gas flow meter and the first ball valve in sequence, the other end of the gas injection manifold is communicated with a gas phase emptying pipeline through the third ball valve, the gas phase emptying pipeline is communicated with an outside gas phase discharge pipeline of the station, the gas injection well gas distribution pipeline is connected to the gas injection well gas distribution pipeline, the gas distribution pipeline is communicated with one end of the single well gas distribution pipeline through the second ball valve, and the gas distribution pipeline of, the other end of the single-well gas distribution pipeline is communicated with a branch end inlet of the static mixer, the gas injection manifold is further connected with a second pressure transmitter, a second stop valve is connected to a gas inlet end pipeline of the second pressure transmitter, a first pressure transmitter is connected between the electric ball valve and the first nozzle gas flowmeter, and a first stop valve is connected to a gas inlet end pipeline of the first pressure transmitter.
Injection well gas distribution pipeline include first governing valve, the third stop valve, third pressure transmitter, second nozzle gas flowmeter, first 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 first check valve intercommunication, fourth pressure transmitter rethread second ball valve and single well gas distribution pipeline intercommunication, be connected third pressure transmitter between first governing valve and the second nozzle gas flowmeter, the third stop valve is connected on third pressure transmitter's inlet end pipeline, be connected fourth pressure transmitter between first check valve and the second ball valve, the fourth stop valve is connected on fourth pressure transmitter's inlet end pipeline.
The liquid inlet pipeline of the liquid distribution valve group comprises a high-pressure liquid inlet pipeline and a first gate valve, the liquid outlet pipeline of the liquid distribution valve group comprises an injection well liquid distribution pipeline, a sixth stop valve A, a sixth stop valve B, a sixth pressure transmitter, a third gate valve and a single well liquid distribution pipeline, the inlet pipeline of the high-pressure liquid inlet pipeline is communicated with the high-pressure liquid inlet pipeline of the liquid injection station, the outlet pipeline of the high-pressure liquid inlet pipeline is communicated with an injection manifold through the first gate valve, the injection well liquid distribution pipeline is connected onto the injection manifold, the injection well liquid distribution pipeline is communicated with one end of the single well liquid distribution pipeline through the third gate valve, the other end of the single well liquid distribution pipeline is communicated with the inlet of the main flow end of the static mixer, the sixth pressure transmitter is connected between the injection well liquid distribution pipeline and the third gate valve, the gas inlet pipeline of the sixth pressure transmitter is communicated with a liquid phase emptying pipeline through the sixth stop valve B, and the liquid phase emptying pipeline is communicated, and a sixth stop valve A is also connected to a pipeline connecting the injection well liquid distribution pipeline and the sixth pressure transmitter.
Injection well join in marriage liquid pipeline include second gate valve and first liquid flow automatic control appearance, the one end and the notes liquid manifold intercommunication of second gate valve, the other end of second gate valve and the one end intercommunication of first liquid flow automatic control appearance, the other end and the sixth pressure transmitter intercommunication of first liquid flow automatic control appearance, it still is connected with fifth pressure transmitter to annotate the liquid manifold, is connected with fifth stop valve A on fifth pressure transmitter's the inlet end pipeline, pipeline between fifth stop valve A and the fifth pressure transmitter import still communicates through fifth stop valve B and liquid phase blowdown pipeline.
The gas-liquid two-phase mixing valve group further comprises a second check valve, a fourth gate valve, a seventh stop valve and a seventh pressure transmitter, the inlet of the main flow end of the static mixer is communicated with a liquid outlet pipeline of the liquid distribution valve group through the second check valve, the outlet end of the static mixer is communicated with a single-well injection distribution pipeline through the fourth gate valve, the seventh pressure transmitter is connected on a pipeline between the fourth gate valve and the single-well injection distribution pipeline, the seventh stop valve is further connected on a gas inlet end pipeline of the seventh pressure transmitter, and the single-well injection distribution pipeline is communicated with an outdoor injection distribution pipeline.
The injection well gas distribution pipeline is provided with more than two groups, and each group of injection well gas distribution pipeline corresponds to a gas-liquid two-phase mixing valve group.
The injection well distribution pipeline is provided with more than two groups, and each group of injection well distribution pipeline corresponds to one gas-liquid two-phase mixing valve group.
The foam-assisted oxygen reduction air driving distribution and injection valve group further comprises a skid seat, wherein the distribution valve group, the liquid distribution valve group and the gas-liquid two-phase mixing valve group are integrated on the skid seat in a skid-mounted mode, the design pressure of the distribution and injection valve group is 16-32 MPa, and the number of the distribution and injection valve groups is 2 or more.
The utility model has the advantages that:
compared with the prior art, the utility model has the advantages that when the gas phase medium injection and the liquid phase medium injection are carried out, firstly, when gas phase medium is injected, high-pressure incoming gas of a gas phase injection station enters an air inlet pipeline of a liquid distribution valve group, then the gas enters an air outlet pipeline through a gas injection manifold, the gas enters a branch inlet of the static mixer, when the liquid-phase medium is injected, the high-pressure incoming liquid of the gas phase injection station enters a liquid inlet pipeline of the liquid distribution valve bank, then enters a liquid outlet pipeline through a liquid inlet manifold, liquid enters a main flow end inlet of the static mixer, after the gas-phase medium and the liquid-phase medium are mixed in the static mixer, the mixture enters a single-well injection allocation pipeline from the outlet end of the static mixer, the single-well injection allocation pipeline is communicated with an injection allocation pipeline of an injection well outside the station, the evacuation of the gas distribution valve bank is communicated with an outside station gas phase exhaust pipeline through a gas phase evacuation pipeline for unified evacuation, and the evacuation of the liquid distribution valve bank is communicated with an outside station liquid phase exhaust pipeline through a liquid phase evacuation pipeline for unified evacuation.
The gas distribution valve group, the liquid distribution valve group and the gas-liquid two-phase mixing valve group are integrated and skid-mounted, and the functions of oxygen reduction air distribution and foam liquid distribution of the injection system can be realized by one set of injection valve group, so that the floor area is reduced, and the engineering investment is reduced.
The gas distribution valve group has the functions of remote gas supply cutoff, monitoring, metering and accumulating of gas supply flow, monitoring of gas supply pressure, monitoring, metering and accumulating of single-well gas injection flow and monitoring of single-well gas injection pressure; the liquid distribution valve group has the functions of monitoring the incoming liquid pressure, monitoring, metering and accumulating the single-well liquid injection flow and monitoring the single-well liquid injection pressure; the injection valve group can meet the centralized injection allocation requirements of oxygen reduction air distribution and foam liquid allocation in the gas injection system, and the gas injection system and the liquid injection system operate independently and do not interfere with each other.
The gas phase medium is measured by a nozzle gas flowmeter, the liquid phase medium is measured by a liquid flow automatic controller, and by matching with a stop valve, a pressure transmitter and the like, the flow data can be displayed in real time, and functions of automatic distribution, regulation control, display, data uploading and the like of gas injection and liquid injection flow can be realized.
The gas distribution valve group is provided with vent pipelines on each single-well gas distribution pipeline and each gas injection manifold, and the vent pipelines are uniformly discharged to the outside of the integrated device, so that the equipment is convenient to overhaul and maintain, and the oxygen content in the integrated device can be ensured by discharging the gas-phase medium, so that the personal safety is ensured; and each single-well liquid distribution pipeline and each liquid injection manifold in the liquid distribution valve group are respectively provided with an emptying pipeline which is uniformly discharged to the outside of the integrated device, so that the equipment is convenient to overhaul and maintain, the corrosion of the liquid-phase medium to the integrated device can be reduced by discharging the liquid-phase medium, and the service life of the device is prolonged.
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 injection valve set of the present invention.
Fig. 2 is the schematic view of the local process flow structure of the gas distribution valve set of the present invention.
Fig. 3 is a schematic view of the local process flow structure of the liquid valve set of the present invention.
Fig. 4 is a schematic view of the local process flow structure of the gas-liquid two-phase mixing valve set 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 first 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. A gas phase vent line; 22. a high pressure liquid inlet line; 23. a first gate valve; 24. liquid injection manifold; 25. a fifth stop valve A; 25-1 and a fifth stop valve B; 26. a fifth pressure transmitter; 27. a second gate valve; 28. a first liquid flow rate automatic control instrument; 29. a sixth stop valve A; 29-1 and a sixth stop valve B; 30. a sixth pressure transmitter; 31. a third gate valve; 32. a single well fluid distribution line; 33. a liquid phase vent line; 34. a second check valve; 35. a static mixer; 36. a fourth gate valve; 37. a seventh stop valve; 38. a seventh pressure transmitter; 39. a single well injection allocation line; 40. a junction box; 41. an oxygen content monitor; 42. 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-reduced air-driven injection valve set includes
The gas injection manifold 7 is connected with the gas outlet pipeline and the gas phase emptying pipeline 21, and the gas phase emptying pipeline 21 is communicated with an external gas phase discharge pipeline outside the station;
the liquid distribution valve group comprises a liquid inlet pipeline, a liquid injection manifold 24, a liquid outlet pipeline and a liquid phase emptying pipeline 33, wherein one end of the liquid inlet pipeline is communicated with a high-pressure liquid inlet pipeline of a liquid injection station, the other end of the liquid inlet pipeline is communicated with the liquid injection manifold 24, the liquid injection manifold 24 is connected with the liquid outlet pipeline and the liquid phase emptying pipeline 33, and the liquid phase emptying pipeline 33 is communicated with an external liquid phase discharge pipeline outside the station;
the device comprises a gas-liquid two-phase mixing valve group, a static mixer 35 and a single-well injection distribution pipeline 39, wherein the static mixer 35 comprises a branch end inlet, a main flow end inlet and an outlet end, the branch end inlet of the static mixer 35 is communicated with an air outlet pipeline of the gas distribution valve group, the main flow end inlet of the static mixer 35 is communicated with a liquid outlet pipeline of the liquid distribution valve group, the outlet end of the static mixer 35 is communicated with the single-well injection distribution pipeline 39, and the single-well injection distribution pipeline 39 is communicated with an off-station injection well injection distribution pipeline.
In actual use: when gas-phase medium injection and liquid-phase medium injection are carried out, firstly, when the gas-phase medium is injected, high-pressure incoming gas of the gas-phase injection station enters the gas inlet pipeline of the liquid distribution valve group, then the gas enters an air outlet pipeline through a gas injection manifold 7, the gas enters a branch inlet of a static mixer 35, when liquid-phase medium is injected, high-pressure incoming liquid of a gas phase injection station enters a liquid inlet pipeline of a liquid distribution valve bank, then enters a liquid outlet pipeline through a liquid inlet manifold 24, liquid enters a main flow end inlet of a static mixer 35, after the gas-phase medium and the liquid-phase medium are mixed in the static mixer 35, the mixture enters a single-well injection distribution pipeline 39 from the outlet end of the static mixer 35, the single-well injection distribution pipeline 39 is communicated with an injection distribution pipeline of an injection well outside the station, the air distribution valve group is communicated with an outside station gas phase discharge pipeline through a gas phase discharge pipeline 21 for unified discharge, and the liquid distribution valve group is communicated with an outside station liquid phase discharge pipeline through a liquid phase discharge pipeline 33 for unified discharge.
Example 2:
referring to fig. 2, the present embodiment is different from embodiment 1 in that: the gas inlet pipeline in the gas distribution valve group comprises a high-pressure gas inlet pipeline 1, an electric ball valve 2, a first pressure transmitter 4, a first nozzle gas flow meter 5 and a first ball valve 6, the gas outlet pipeline in the gas distribution valve group comprises an injection well gas distribution pipeline, a second ball valve 17, a single well gas distribution pipeline 18, a fourth ball valve 20 and a third ball valve 19, the inlet pipeline of the high-pressure gas inlet pipeline 1 is communicated with the high-pressure gas inlet pipeline of the gas injection station, the outlet pipeline of the high-pressure gas inlet pipeline 1 is communicated with one end of a gas injection manifold 7 through the electric ball valve 2, the first nozzle gas flow meter 5 and the first ball valve 6 in sequence, the other end of the gas injection manifold 7 is communicated with a gas phase emptying pipeline 21 through the third ball valve 19, the gas phase emptying pipeline 21 is communicated with an external gas phase discharge pipeline of the station, the gas injection manifold 7 is connected with an injection well gas distribution pipeline, the injection well gas distribution pipeline is communicated with one end of the single well, still communicate with the unloading pipeline 21 through fourth ball valve 20 between injection well gas distribution pipeline and the second ball valve 17, and the branch end entry intercommunication of the single well gas distribution pipeline 18 other end and static mixer 35, gas injection manifold 7 still is connected with second pressure transmitter 9, connects second stop valve 8 on the inlet end pipeline of second pressure transmitter 9, is connected first pressure transmitter 4 between electric ball valve 2 and the first nozzle gas flowmeter 5, connects first stop valve 3 on the inlet end pipeline of first pressure transmitter 4.
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 other end of the single well gas distribution pipeline 18 is communicated with a branch end inlet of a static mixer 35, the gas enters the static mixer 35, the space between the injection well gas distribution pipeline and the second ball valve 17 is also communicated with the emptying pipeline 21, carry out the blowdown of empting injection well gas distribution pipeline, fourth ball valve 20 is convenient for overhaul of the equipments, pipeline when maintaining is emptied, injection well gas distribution pipeline on the gas injection manifold 7 is one to one, each injection well gas distribution pipeline corresponds an injection well promptly, prevents the injection parameter mutual interference of each injection well, ensures that injection well gas injection is steady, second pressure transmitter 9 is convenient for monitor distribution pressure, first stop valve 3 is used for controlling the air inlet pipe way of first pressure transmitter 4.
Example 3:
referring to fig. 2, the present embodiment is different from embodiment 2 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, first check valve 14, fourth shutoff 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 first check valve 14 in proper order, fourth pressure transmitter 16 rethread second ball valve 17 and single well gas distribution pipeline 18 intercommunication, connect third pressure transmitter 12 between first governing valve 10 and the second nozzle gas flowmeter 13, third shutoff valve 11 is connected on the inlet end pipeline of third pressure transmitter 12, connect fourth pressure transmitter 16 between first check valve 14 and the second ball valve 17, fourth shutoff valve 15 is connected on the inlet end pipeline of fourth pressure transmitter 16.
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 in sequence, and enters a single-well gas distribution pipeline 18 through a second ball valve 17 and is in the single-well gas distribution pipeline 18. Gas enters the static mixer 35 from a branch inlet of the static mixer 35, the third pressure transmitter 12 is used for monitoring the pressure of the single-well gas distribution pipeline 18, the fourth pressure transmitter 16 is used for monitoring the pressure of the single-well gas distribution pipeline 18, the fourth stop valve 15 is connected to a gas inlet pipeline of the fourth pressure transmitter 16, the fourth stop valve 15 is used for controlling a gas inlet pipeline of the fourth pressure transmitter 16, in the gas injection process, the second nozzle gas flowmeter 13 transmits a real-time flow signal to the first regulating valve 10, when the real-time flow of the second nozzle gas flowmeter 13 is not matched with the gas distribution quantity, the first regulating valve 10 controls the flow through the opening of the automatic regulating valve, and therefore the real-time flow of the second nozzle gas flowmeter 13 is matched with the gas distribution quantity.
Example 4:
referring to fig. 3, the present embodiment is different from embodiment 3 in that: the liquid inlet pipeline of the liquid distribution valve group comprises a high-pressure liquid inlet pipeline 22 and a first gate valve 23, the liquid outlet pipeline of the liquid distribution valve group comprises a well injection liquid distribution pipeline, a sixth stop valve A29, a sixth stop valve B29-1, a sixth pressure transmitter 30, a third gate valve 31 and a single well liquid distribution pipeline 32, the inlet pipeline of the high-pressure liquid inlet pipeline 22 is communicated with the high-pressure liquid inlet pipeline of a liquid injection station, the outlet pipeline of the high-pressure liquid inlet pipeline 22 is communicated with a liquid injection manifold 24 through the first gate valve 23, the liquid injection manifold 24 is connected with an injection well injection pipeline, the liquid distribution pipeline is communicated with one end of the single well liquid distribution pipeline 32 through the third gate valve 31, the other end of the single well liquid distribution pipeline 32 is communicated with the inlet of the main flow end of a static mixer 35, the sixth pressure transmitter 30 is connected between the injection well liquid distribution pipeline and the third gate valve 31, the gas inlet pipeline of the sixth pressure transmitter 30 is communicated with a liquid phase emptying pipeline 33 through the sixth stop valve, the liquid phase emptying pipeline 33 is communicated with an out-station liquid phase discharging pipeline, and a sixth stop valve A29 is further connected to a pipeline for connecting the injection well liquid distribution pipeline and the sixth pressure transmitter 30.
In actual use: high-pressure incoming liquid of a liquid phase injection station enters a liquid injection manifold 24 through a high-pressure liquid inlet pipeline 22, the liquid injection manifold 24 is connected with an injection well liquid distribution pipeline of a plurality of injection wells, the high-pressure liquid in the injection well liquid distribution pipeline sequentially passes through a second gate valve 27, a first liquid flow automatic controller 28, a third gate valve 31 and a sixth stop valve A29 to enter a single well liquid distribution pipeline 32, the high-pressure liquid in the single well liquid distribution pipeline 32 enters a main flow end inlet of a static mixer 35, the emptying of the liquid injection manifold 24 is communicated with a liquid phase emptying pipeline 33 through a fifth stop valve A25, a fifth pressure transmitter 26 and a fifth stop valve B25-1, the emptying of each single well liquid distribution pipeline 32 is communicated with the liquid phase emptying pipeline 33 through a sixth stop valve A29, a sixth pressure transmitter 30 and a sixth stop valve B29-1, and finally the liquid phase emptying pipeline 33 is communicated with an out-station liquid phase discharge pipeline for uniform discharge, the liquid flow automatic controller 28 is used for automatically adjusting the liquid distribution flow of the single well, the sixth stop valve 29 is convenient for emptying and discharging the single well liquid distribution pipeline 32 during equipment maintenance, and the sixth pressure transmitter 30 is used for monitoring the pressure of the single well liquid distribution pipeline 32.
Example 5:
this embodiment is different from embodiment 4 in that: the injection well liquid distribution pipeline comprises a second gate valve 27 and a first liquid flow automatic controller 28, one end of the second gate valve 27 is communicated with a liquid injection manifold 24, the other end of the second gate valve 27 is communicated with one end of the first liquid flow automatic controller 28, the other end of the first liquid flow automatic controller 28 is communicated with a sixth pressure transmitter 30, the liquid injection manifold 24 is further connected with a fifth pressure transmitter 26, a fifth stop valve A25 is connected to the air inlet end pipeline of the fifth pressure transmitter 26, and the pipeline between the inlets of the fifth stop valve A25 and the fifth pressure transmitter 26 is further communicated with a liquid phase emptying pipeline 33 through a fifth stop valve B25-1.
In actual use: the liquid in the liquid injection manifold 24 sequentially passes through the second gate valve 27 and the first liquid flow automatic controller 28, then enters the high-pressure liquid inlet pipeline 22 through the sixth pressure transmitter 30 and the third gate valve 31, the liquid in the high-pressure liquid inlet pipeline 22 enters the static mixer 35 through the main flow end inlet of the static mixer 35, the fifth stop valve A25 and the fifth pressure transmitter 26 are used for sampling analysis and pressure monitoring of the liquid injection manifold 24, and the fifth stop valve B25-1 is used for controlling the liquid phase emptying pipeline 33.
Example 6:
referring to fig. 4, the present embodiment is different from embodiment 1 in that: the gas-liquid two-phase mixing valve group further comprises a second check valve 34, a fourth check valve 36, a seventh stop valve 37 and a seventh pressure transmitter 38, the inlet of the main flow end of the static mixer 35 is communicated with a liquid outlet pipeline of the liquid distribution valve group through the second check valve 34, the outlet end of the static mixer 35 is communicated with a single-well injection distribution pipeline 39 through the fourth check valve 36, the seventh pressure transmitter 38 is connected to a pipeline between the fourth check valve 36 and the single-well injection distribution pipeline 39, the seventh stop valve 37 is further connected to a gas inlet end pipeline of the seventh pressure transmitter 38, and the single-well injection distribution pipeline 39 is communicated with an outdoor injection well injection distribution pipeline.
In actual use: a second check valve 34 is connected between the single-well liquid distribution pipeline 32 and the inlet of the main flow end of the static mixer 35, so that a gas phase or gas-liquid two-phase mixture can be prevented from entering the single-well liquid distribution pipeline 32; a fourth gate valve 36 is connected between the outlet end of the static mixer 35 and the single well injection distribution line 39, a seventh stop valve 37 and a seventh pressure transducer 38 are connected between the fourth gate valve 36 and the single well injection distribution line 39, and the seventh pressure transducer 38 is used for monitoring the single well injection distribution line pressure.
Example 7:
the present embodiment is different from embodiment 2 in that: the injection well gas distribution pipeline is provided with more than two groups, and each group of injection well gas distribution pipeline corresponds to a gas-liquid two-phase mixing valve group.
In actual use: the injection well gas distribution pipeline is provided with more than two groups, and each group of injection well gas distribution pipeline corresponds to a gas-liquid two-phase mixing valve group, so that gas can enter the branch inlet of each static mixer 35.
Example 8:
this embodiment is different from embodiment 4 in that: the injection well distribution pipeline is provided with more than two groups, and each group of injection well distribution pipeline corresponds to one gas-liquid two-phase mixing valve group.
In actual use: the injection well distribution pipelines are provided with more than two groups, and each group of injection well distribution pipelines corresponds to a gas-liquid two-phase mixing valve group, so that liquid can enter the main flow end inlet of the static mixer 35.
Example 9:
the present embodiment is different from embodiment 1 in that: the foam-assisted oxygen-reduction air-drive distribution and injection valve set further comprises a skid seat, the distribution valve set, the liquid distribution valve set and the gas-liquid two-phase mixing valve set are integrated on the skid seat in a skid mode, the design pressure of the distribution and injection valve set is 16-32 MPa, and the number of the distribution and injection valve sets is 2 or more.
In actual use: the gas distribution valve bank, the liquid distribution valve bank and the gas-liquid two-phase mixing valve bank are integrated on a skid seat and reasonably arranged in a color steel room, so that the color steel room can be conveniently and integrally moved, recycled and quickly installed, the construction period is shortened, the occupied area is reduced, the engineering investment is reduced, and the color steel room is better in superiority.
Example 10:
a process for preparing the foam-assisted oxygen-reducing air-driving injection valve group comprises the steps of carrying out gas-phase medium injection and liquid-phase medium injection, when the gas-phase medium is firstly injected, the high-pressure incoming gas of a gas-phase 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 a gas injection pipeline of a multi-port injection well connected to the gas injection manifold 7, the gas passing through the gas injection pipeline passes through a first regulating valve 10, a third pressure transmitter 12, a second nozzle gas flowmeter 13, a first check valve 14, a fourth pressure transmitter 16 and a second ball valve 17 in turn, and enters a branch inlet of a static mixer 35 through a single-well gas distribution pipeline 18, wherein the gas injection manifold 7 is communicated with a vent pipeline 21 through a third ball valve 19, each single-well gas distribution pipeline 18 is communicated with a vent pipeline 21 through a fourth ball valve 20, and is communicated with an outside gas phase discharge pipeline through the vent pipeline 21 for uniform discharge; secondly, when the liquid phase medium is injected, high-pressure incoming liquid of a liquid phase injection station enters a liquid injection manifold 24 through a high-pressure liquid inlet pipeline 22, the liquid injection manifold 24 is connected with an injection well liquid distribution pipeline with a plurality of injection wells, the high-pressure liquid in the injection well liquid distribution pipeline enters a single well liquid distribution pipeline 32 through a second gate valve 27, a first liquid flow automatic controller 28, a third gate valve 31 and a sixth stop valve A29 in sequence, the high-pressure liquid in the single well liquid distribution pipeline 32 enters a main stream end inlet of a static mixer 35 for liquid injection, the emptying of the manifold 24 passes through a fifth stop valve A25, the fifth pressure transmitter 26 and the fifth stop valve B25-1 are communicated with a liquid phase emptying pipeline 33, the emptying of each single well liquid distribution pipeline 32 is communicated with the liquid phase emptying pipeline 33 through a sixth stop valve A29, a sixth pressure transmitter 30 and a sixth stop valve B29-1, and finally the liquid phase emptying pipeline 33 is communicated with an outdoor liquid phase discharge pipeline for unified discharge; gas phase injection medium and liquid phase injection medium loop through fourth gate valve 36 and seventh pressure transmitter 38 and enter into single well injection distribution pipeline 39 connected in static mixer 35 back to the exit end of static mixer 35, and single well injection distribution pipeline 39 and the injection distribution pipeline of the injection well outside the station communicate to the injection well outside the station, can realize gaseous phase, the continuous injection of liquid phase, the utility model discloses a single well gas distribution pipeline 18 on gas injection manifold 7 pipe in the supplementary oxygen reduction air of foam drives injection valve group, single well liquid distribution pipeline 32 on liquid injection manifold 24 are one-to-one and independent each other, and each single well gas distribution pipeline 18, single well liquid distribution pipeline 32 all correspond an injection well alone promptly, and each single well gas distribution pipeline 18, single well liquid distribution pipeline 32 are all independent each other noninterference each other, prevent each injection well's gas injection, annotate liquid parameter mutual interference, ensure that the injection well operates steadily.
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. A foam-assisted oxygen reduction air driving and injection valve group is characterized in that: comprises that
The gas injection manifold comprises a gas distribution valve group, a gas inlet pipeline, a gas injection manifold (7), a gas outlet pipeline and a gas phase emptying pipeline (21), wherein one end of the gas inlet pipeline is communicated with a high-pressure gas inlet pipeline of a gas injection station, the other end of the gas inlet pipeline is communicated with the gas injection manifold (7), the gas outlet pipeline and the gas phase emptying pipeline (21) are connected to the gas injection manifold (7), and the gas phase emptying pipeline (21) is communicated with an outside gas phase discharge pipeline of the station;
the liquid distribution valve group comprises a liquid inlet pipeline, a liquid injection manifold (24), a liquid outlet pipeline and a liquid phase emptying pipeline (33), wherein one end of the liquid inlet pipeline is communicated with a high-pressure liquid inlet pipeline of a liquid injection station, the other end of the liquid inlet pipeline is communicated with the liquid injection manifold (24), the liquid injection manifold (24) is connected with the liquid outlet pipeline and the liquid phase emptying pipeline (33), and the liquid phase emptying pipeline (33) is communicated with a liquid phase discharge pipeline outside the station;
the device comprises a gas-liquid two-phase mixing valve group, a static mixer (35) and a single-well injection distribution pipeline (39), wherein the static mixer (35) comprises a branch end inlet, a main flow end inlet and an outlet end, the branch end inlet of the static mixer (35) is communicated with an air outlet pipeline of the gas distribution valve group, the main flow end inlet of the static mixer (35) is communicated with an liquid outlet pipeline of the liquid distribution valve group, the outlet end of the static mixer (35) is communicated with the single-well injection distribution pipeline (39), and the single-well injection distribution pipeline (39) is communicated with an injection distribution pipeline of an off-site injection well.
2. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 1 wherein: the gas inlet pipeline in the gas distribution valve group comprises a high-pressure gas inlet pipeline (1), an electric ball valve (2), a first pressure transmitter (4), a first nozzle gas flow meter (5) and a first ball valve (6), the gas outlet pipeline in the gas distribution valve group comprises an injection well gas distribution pipeline, a second ball valve (17), a single well gas distribution pipeline (18), a fourth ball valve (20) and a third ball valve (19), the inlet pipeline of the high-pressure gas inlet pipeline (1) is communicated with the high-pressure gas inlet pipeline of a gas injection station, the outlet pipeline of the high-pressure gas inlet pipeline (1) is communicated with one end of a gas injection manifold (7) sequentially through the electric ball valve (2), the first nozzle gas flow meter (5) and the first ball valve (6), the other end of the gas injection manifold (7) is communicated with a gas phase emptying pipeline (21) through the third ball valve (19), and the gas phase emptying pipeline (21) is communicated with an external gas phase discharge pipeline of the station, connect injection well gas distribution pipeline on gas injection manifold (7), injection well gas distribution pipeline passes through second ball valve (17) and single well gas distribution pipeline (18) one end intercommunication, still communicates through fourth ball valve (20) and evacuation pipeline (21) between injection well gas distribution pipeline and second ball valve (17), single well gas distribution pipeline (18) other end and the tributary end entry intercommunication of static mixer (35), gas injection manifold (7) still are connected with second pressure transmitter (9), connect second stop valve (8) on the inlet end pipeline of second pressure transmitter (9), are connected first pressure transmitter (4) between electric ball valve (2) and first nozzle gas flowmeter (5), connect first stop valve (3) on the inlet end pipeline of first pressure transmitter (4).
3. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 2 wherein: the gas distribution pipeline of the injection well comprises a first regulating valve (10), a third stop valve (11), a third pressure transmitter (12), a second nozzle gas flowmeter (13), a first check valve (14), a fourth stop valve (15) and a fourth pressure transmitter (16), one end of the first regulating valve (10) is communicated with a gas injection header (7), the other end of the first regulating valve (10) is sequentially communicated with the second nozzle gas flowmeter (13) and the first check valve (14), the fourth pressure transmitter (16) is communicated with a single-well gas distribution pipeline (18) through a second ball valve (17), the third pressure transmitter (12) is connected between the first regulating valve (10) and the second nozzle gas flowmeter (13), the third stop valve (11) is connected to a gas inlet end pipeline of the third pressure transmitter (12), the fourth pressure transmitter (16) is connected between the first check valve (14) and the second ball valve (17), the fourth stop valve (15) is connected to the inlet end pipeline of the fourth pressure transmitter (16).
4. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 1 wherein: the liquid inlet pipeline of the liquid distribution valve group comprises a high-pressure liquid inlet pipeline (22) and a first gate valve (23), the liquid outlet pipeline of the liquid distribution valve group comprises an injection well liquid distribution pipeline, a sixth stop valve A (29), a sixth stop valve B (29-1), a sixth pressure transmitter (30), a third gate valve (31) and a single well liquid distribution pipeline (32), the inlet pipeline of the high-pressure liquid inlet pipeline (22) is communicated with the high-pressure liquid inlet pipeline of the liquid injection station, the outlet pipeline of the high-pressure liquid inlet pipeline (22) is communicated with the liquid injection manifold (24) through the first gate valve (23), the injection well liquid distribution pipeline (24) is connected with an injection well, the injection well liquid distribution pipeline is communicated with one end of the single well liquid distribution pipeline (32) through the third gate valve (31), the other end of the single well liquid distribution pipeline (32) is communicated with the main stream end inlet of the static mixer (35), the sixth pressure transmitter (30) is connected between the injection well liquid distribution pipeline and the third gate valve (31), and the gas inlet end pipeline of the sixth pressure transmitter (30) is communicated with a liquid phase emptying pipeline (33) through a sixth stop valve B (29-1), the liquid phase emptying pipeline (33) is communicated with an outdoor liquid phase discharge pipeline, and a sixth stop valve A (29) is further connected to the pipeline for connecting the injection well liquid distribution pipeline and the sixth pressure transmitter (30).
5. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 4 wherein: the injection well liquid distribution pipeline comprises a second gate valve (27) and a first liquid flow automatic control instrument (28), one end of the second gate valve (27) is communicated with a liquid injection header (24), the other end of the second gate valve (27) is communicated with one end of the first liquid flow automatic control instrument (28), the other end of the first liquid flow automatic control instrument (28) is communicated with a sixth pressure transmitter (30), the liquid injection header (24) is further connected with a fifth pressure transmitter (26), a fifth stop valve A (25) is connected to the air inlet end pipeline of the fifth pressure transmitter (26), and the pipeline between the inlets of the fifth stop valve A (25) and the fifth pressure transmitter (26) is further communicated with a liquid phase emptying pipeline (33) through the fifth stop valve B (25-1).
6. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 1 wherein: the gas-liquid two-phase mixing valve group further comprises a second check valve (34), a fourth gate valve (36), a seventh stop valve (37) and a seventh pressure transmitter (38), a main flow end inlet of the static mixer (35) is communicated with a liquid outlet pipeline of the liquid distribution valve group through the second check valve (34), an outlet end of the static mixer (35) is communicated with a single-well injection distribution pipeline (39) through the fourth gate valve (36), the seventh pressure transmitter (38) is connected on a pipeline between the fourth gate valve (36) and the single-well injection distribution pipeline (39), the seventh stop valve (37) is further connected on an air inlet end pipeline of the seventh pressure transmitter (38), and the single-well injection distribution pipeline (39) is communicated with an off-station injection well injection distribution pipeline.
7. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 2 wherein: the injection well gas distribution pipeline is provided with more than two groups, and each group of injection well gas distribution pipeline corresponds to a gas-liquid two-phase mixing valve group.
8. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 4 wherein: the injection well distribution pipeline is provided with more than two groups, and each group of injection well distribution pipeline corresponds to one gas-liquid two-phase mixing valve group.
9. The foam assisted oxygen reduction air displacement valve assembly as defined in claim 1 wherein: the gas distribution valve bank, the liquid distribution valve bank and the gas-liquid two-phase mixing valve bank are integrated on the skid seat in a skid-mounted mode, the design pressure of the injection distribution valve bank is 16-32 MPa, and the number of the injection distribution valve banks is 2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511501.4U CN209875133U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving injection valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920511501.4U CN209875133U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving injection valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875133U true CN209875133U (en) | 2019-12-31 |
Family
ID=68960200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920511501.4U Active CN209875133U (en) | 2019-04-15 | 2019-04-15 | Foam-assisted oxygen reduction air driving injection valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029972A (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 injection allocation valve group and process |
| CN111219180A (en) * | 2020-01-08 | 2020-06-02 | 中海石油(中国)有限公司 | Method for screening development test area suitable for injecting oxygen-reduced air in offshore low-permeability oilfield |
-
2019
- 2019-04-15 CN CN201920511501.4U patent/CN209875133U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029972A (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 injection allocation valve group and process |
| CN110029972B (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 injection allocation valve group and process method |
| CN111219180A (en) * | 2020-01-08 | 2020-06-02 | 中海石油(中国)有限公司 | Method for screening development test area suitable for injecting oxygen-reduced air in offshore low-permeability oilfield |
| CN111219180B (en) * | 2020-01-08 | 2023-06-02 | 中海石油(中国)有限公司 | Method for screening test areas suitable for oxygen-reduced air injection development in offshore low-permeability oil fields |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208330319U (en) | A kind of carbon dioxide pressurization pump truck | |
| CN208576026U (en) | A kind of hybrid system of efficient well cementing operation | |
| CN209875133U (en) | Foam-assisted oxygen reduction air driving injection valve group | |
| US20070029090A1 (en) | Well Servicing Rig and Manifold Assembly | |
| CN110787667A (en) | Blending system | |
| US10926996B2 (en) | Mobile distribution station having adjustable feed network | |
| CN102423655A (en) | Large-flow fracturing fluid preparation system and method | |
| CN109481871A (en) | Vehicle-mounted big flow fire-fighting foams fluid mixing system | |
| CN203912547U (en) | A kind of device that Different Crop in booth is carried out respectively to independent fertilising | |
| CN107299657A (en) | Public supply mains pressure controlling movable type system and the ductwork pressure regulation and control method realized using the system | |
| CN211358409U (en) | Gas mixing device | |
| CN110029972B (en) | Foam-assisted oxygen reduction air driving injection allocation valve group and process method | |
| CN203090319U (en) | Multifunctional compressed air foam fire extinguishment device | |
| CN107355409A (en) | Gas-liquid two-phase flow accuracy controlling device and regulation and control method | |
| CN209875134U (en) | Foam-assisted oxygen reduction air driving distribution valve bank | |
| CN114575797A (en) | Automatic pressure regulating system of wellhead jet pump and using method thereof | |
| CN213269993U (en) | Be applied to gas storage reservoir and annotate integration skid-mounted device of adopting well site | |
| CN109459535B (en) | Multi-slurry high-pressure grouting device for laboratory and grouting method thereof | |
| CN113738326A (en) | Carbon dioxide anhydrous sand adding fracturing system and method | |
| CN110029971B (en) | Foam-assisted oxygen reduction air driving valve group and process method | |
| CN108086968B (en) | Coal bed gas cluster well skid-mounted device | |
| CN206741347U (en) | A integrated air distributing device | |
| CN111577230B (en) | Simple adding device for oil-gas field fracturing fluid auxiliary agent | |
| CN109379962A (en) | A kind of preceding fertilizer apparatus of water-fertilizer integral pump | |
| CN210868737U (en) | Fertilizer applying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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. |
|
| TR01 | Transfer of patent right |