CN113324256A - Flare gas recovery system for offshore oil production platform - Google Patents
Flare gas recovery system for offshore oil production platform Download PDFInfo
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- CN113324256A CN113324256A CN202010529118.9A CN202010529118A CN113324256A CN 113324256 A CN113324256 A CN 113324256A CN 202010529118 A CN202010529118 A CN 202010529118A CN 113324256 A CN113324256 A CN 113324256A
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- 238000011084 recovery Methods 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 85
- 230000001105 regulatory effect Effects 0.000 claims description 29
- 238000005406 washing Methods 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 112
- 238000012544 monitoring process Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/065—Arrangements for producing propulsion of gases or vapours
- F17D1/07—Arrangements for producing propulsion of gases or vapours by compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model provides a torch gas recovery system for offshore production platform, include the torch head through the pipeline link up connection each other, fluid reservoir and compressor sled are divided to the torch, parallelly connected the setting rupture disk on the pipeline between torch head and the torch branch fluid reservoir, the pneumatic quick-open valve of first pressure control valve and trouble division, set up first pressure transmitter on the pipeline between fluid reservoir and the compressor sled is divided to the torch, first pressure transmitter reads the system pressure value, control opening and shutting of the pneumatic quick-open valve of first pressure control valve and trouble division, the pneumatic quick-open valve of opening when first pressure control valve and trouble division is closed and the rupture disk is intact, torch gas is carried to the compressor sled through the pipeline and is retrieved, when first pressure control valve, the pneumatic quick-open valve of trouble division is opened or the rupture disk is broken, torch gas passes through the pipeline and carries to the torch head release. The flare gas recovery system for the offshore oil production platform improves the operation efficiency and the stability and safety of the system, and the existing equipment of the offshore oil production platform can be fully utilized.
Description
Technical Field
The invention belongs to the field of offshore oil production, and particularly relates to a flare gas recovery system for an offshore oil production platform.
Background
Because offshore oil fields are far away from land, the export cost is high, the platform space is limited and the like, a mature flare gas integral recovery technology suitable for offshore platforms does not exist. At present, offshore oil production platforms are applied more frequently, and low-pressure gas of a thermochemical processor is recovered, namely, a treatment system taking a compressor as core equipment is adopted, and the low-pressure gas is recovered through cooling, supercharging, cooling and liquid removal. The amount of these gases is considerable, but not the total source of flare gas, production separators, gas scrubbers, thermochemical treaters, equipment using cover gas, etc., and a large amount of flare gas discharged to maintain the pressure in the production process stable cannot be recovered.
Disclosure of Invention
The invention aims to provide a flare gas recovery system for an offshore oil production platform, which aims to solve the technical problem that a large amount of released flare gas is not recovered sufficiently to maintain the pressure stability of a production process.
In order to achieve the purpose, the specific technical scheme of the flare gas recovery system for the offshore oil production platform is as follows:
the utility model provides a torch gas recovery system for offshore production platform, include the torch head through the pipeline link up each other and connect, fluid reservoir and compressor sled are divided to the torch, parallelly connected the setting rupture disk on the pipeline between torch head and the torch branch fluid reservoir, the pneumatic quick-open valve of first pressure control valve and trouble division, set up first pressure transmitter on the pipeline between fluid reservoir and the compressor sled is divided to the torch, first pressure transmitter reads the system pressure value, thereby control opening and shutting of the pneumatic quick-open valve of first pressure control valve and trouble division, when the pneumatic quick-open valve of first pressure control valve and trouble division is closed and the rupture disk is intact, the torch gas is carried to the compressor sled through the pipeline and is retrieved, when first pressure control valve, the pneumatic quick-open valve of trouble division is opened or when the rupture disk breaks, the torch gas is carried to the torch head release through the pipeline.
Further, torch gas recovery system includes torch gas manifold, torch gas manifold pass through the pipeline respectively with torch branch fluid reservoir and compressor sled through connection, the torch divides for tee bend structure pipe connection between fluid reservoir, compressor sled and the torch gas manifold, first pressure transmitter sets up the one end of dividing the fluid reservoir near the torch.
Furthermore, a second pressure transmitter is arranged at one end, close to the compressor pry, of the pipeline between the torch liquid separating tank and the compressor pry, and the second pressure transmitter reads a system pressure value so as to control the frequency conversion frequency of the compressor pry.
Further, the compressor sled passes through pipeline and gas washing jar through-connection, gas washing jar bottom passes through pipeline and first sump oil jar through-connection, set up second liquid level transmitter and second liquid level control valve on the pipeline between gas washing jar and the first sump oil jar, the liquid level of gas washing jar is read to the second liquid level transmitter to control the aperture of second liquid level control valve.
Further, the gas washing jar passes through the pipeline and is linked up with the torch gas manifold, set up second pressure regulating valve on the pipeline between gas washing jar and the torch gas manifold, be close to torch gas manifold one end on the pipeline between torch gas manifold and the compressor sled and set up third pressure transmitter, the upper end of gas washing jar passes through the pipe connection fourth pressure transmitter, third pressure transmitter reads the pressure value of torch gas manifold, fourth pressure transmitter reads the pressure value of gas washing jar to give second pressure regulating valve's aperture jointly.
Further, the flare gas manifold is communicated with the closed row tank through a pipeline, so that flare gas flows bidirectionally between the flare gas manifold and the closed row tank.
Further, torch liquid separation tank bottom is through pipeline and second sump oil jar through connection, set up first liquid level control valve and first liquid level changer on the pipeline between torch liquid separation tank and the second sump oil jar, first liquid level changer reads the liquid level that torch liquid separation tank to the aperture of control first liquid level control valve.
Further, the compressor skid includes a forward cooler, a screw compressor, an after cooler, and a scrubber.
Furthermore, the positions of the first pressure transmitter, the second pressure transmitter, the third pressure transmitter, the fourth pressure transmitter and the second liquid level transmitter on the pipeline are provided with openings, the openings are connected with the pressure guiding pipe, and the first pressure transmitter, the second pressure transmitter, the third pressure transmitter, the fourth pressure transmitter, the second liquid level transmitter and the pressure guiding pipe are connected in a threaded mode.
Furthermore, the position that first liquid level transmitter is located the pipeline sets up the trompil, and the trompil is connected and is drawn the pressure pipe, first liquid level transmitter and draw pressure pipe are connected with the screw thread mode.
The flare gas recovery system for the offshore oil production platform has the following advantages: the operation efficiency is improved, the stability and the safety of the system are improved, and the existing equipment of the offshore platform can be fully utilized.
Drawings
FIG. 1 is a schematic illustration of a prior art flare gas recovery system for an offshore production platform;
FIG. 2 is a schematic illustration of the flare gas recovery system for an offshore production platform according to the present invention;
FIG. 3 is an enlarged partial view of a flare manifold.
The notation in the figure is: 1. a torch head; 2. a torch liquid separating tank; 3. prying a compressor; 4. a gas washing tank; 5. a flare gas manifold; 51. a gas phase outlet of the first-stage separator; 52. a gas phase outlet of the secondary heat treatment device; 53. an outlet of the inclined plate oil remover coverer; 54. a gas phase outlet of the air-entraining flotation device; 6. closing the discharge tank; 7. a rupture disk; 8. a first pressure regulating valve; 9. a pneumatic quick-opening valve which is opened in a fault; 10. a first pressure transmitter; 11. a second pressure transmitter; 12. a third pressure transmitter; 13. a fourth pressure transmitter; 14. a second pressure regulating valve; 15. a first liquid level regulating valve; 16. a second level adjustment valve; 17. a first level transmitter; 18. a second liquid level transmitter; 19. a secondary heat processor.
Detailed Description
For a better understanding of the objects, structure and function of the present invention, a flare gas recovery system for an offshore production platform of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the flare gas recovery system in the prior art comprises a flare head 1, a flare liquid separating tank 2, a compressor pry 3, a gas washing tank 4, a flare gas manifold 5, a fourth pressure transmitter 13, a second pressure regulating valve 14, a first liquid level regulating valve 15, a second liquid level regulating valve 16, a first liquid level transmitter 17 and a second liquid level transmitter 18, wherein an inlet of the compressor pry 3 is connected with a second-stage heat processor 19, the pressure of the flare gas treatment system in the prior art is very low, the system pressure is only slightly higher than the atmospheric pressure, gas in the flare gas manifold 5 can be conveyed to the flare head 1 through a pipeline to realize the emptying and combustion of the flare gas, the gas recovery through the compressor pry 3 cannot be carried out, in order to realize the full recovery and utilization of the flare gas and improve the stability and safety of the system, the improved flare gas recovery system is realized by additionally arranging a rupture disk 7 and a first pressure regulating valve 8, The fail open pneumatic quick open valve 9, first pressure transmitter 10, second pressure transmitter 11 and third pressure transmitter 12 ameliorate the deficiencies of prior art flare gas recovery systems.
As shown in fig. 2, the improved flare gas recovery system of the present invention includes a flare header 1, a flare liquid separating tank 2, a compressor pry 3 and a flare gas manifold 5, wherein a first output end of the flare gas manifold 5 is connected to an input end of the compressor pry 3 through a pipeline, a middle section of a connecting pipeline between the flare gas manifold 5 and the compressor pry 3 is connected to an input end of the flare liquid separating tank 2 through a pipeline, the connecting pipeline between the flare liquid separating tank 2, the compressor pry 3 and the flare gas manifold 5 forms a three-way structure, and an output end of the flare liquid separating tank 2 is connected to the flare header 1 through a pipeline.
The middle section of the connecting pipeline between the flare tip 1 and the flare liquid separating tank 2 is provided with a rupture disk 7, a first pressure regulating valve 8 and a pneumatic quick-opening valve 9 which is opened in a fault in parallel. When the system pressure is 10-50kPaG (kPa represents kilopascal, G represents gauge pressure) and the compressor skid 3 works normally, at the moment, under the normal working condition, the flare gas of the flare gas manifold 5 is respectively conveyed to the flare liquid separating tank 2 and the compressor skid 3 through pipelines, after the flare gas is subjected to gas-liquid separation in the flare liquid separating tank 2, because the rupture disk 7 is intact and not broken at the moment, and the first pressure regulating valve 8 and the pneumatic quick-opening valve 9 which is broken open are both in a closed state, the gas separated from the flare liquid separating tank 2 is led to the flare head 1 through the pipelines for interception, the overall pressure of the flare gas recovery system is increased, and the compressor skid 3 has the condition of gas flare recovery.
One end of a connecting pipeline of the flare gas manifold 5, the compressor pry 3 and the flare liquid separating tank 2, which is close to the flare liquid separating tank 2, is provided with a first pressure transmitter 10, and the first pressure transmitter 10 monitors the pressure of the flare gas recovery system and transmits the pressure to the central control system. When the system pressure is higher than a set high value of 50kPaG (kPa represents kilopascal, G represents gauge pressure), the central control system controls the first pressure regulating valve 8 to open and regulate the system pressure. When the system pressure is higher than 70kPaG (kPa represents kilopascal, G represents gauge pressure) or the compressor skid 3 is shut down due to faults, at the moment, under an abnormal working condition, the central control system controls the first pressure regulating valve 8 to be kept fully open and the pneumatic quick-opening valve 9 which is opened due to faults to be opened, gas separated from the flare liquid separating tank 2 can be led to the flare head 1 through a pipeline to quickly release flare gas, and when the system pressure is higher than 100kPaG (kPa represents kilopascal, G represents gauge pressure), the rupture disk 7 is ruptured to release the flare gas, system overpressure caused by system faults or other pipeline blockage is avoided, and the safety of the flare gas recovery system is improved.
And a second pressure transmitter 11 is arranged at one end, close to the compressor sledge 3, of the connecting pipeline of the torch gas manifold 5, the compressor sledge 3 and the torch liquid distribution tank 2, and the second pressure transmitter 11 monitors the system pressure and transmits the system pressure to the central control system. When flare gas in the flare gas manifold 5 cannot enter the flare head 1 to be combusted under normal working conditions and is pressurized and recovered by the compressor pry 3, the central control system gives the frequency conversion control frequency of the compressor pry 3 according to the monitoring value of the second pressure transmitter 11, and therefore the operation efficiency of the flare gas recovery system is improved.
The output end of the compressor pry 3 is in through connection with the input end of the gas washing tank 4 through a pipeline, the recovered flare gas is compressed and conveyed to the gas washing tank 4 through the pipeline to be subjected to liquid removal and buffer storage, the gas compressor is further compressed and supplied to a turbine generator to be used as fuel gas or to be used by a cover gas user, recovery of the flare gas is achieved, the bottom of the gas washing tank 4 is in through connection with the first sump oil tank through the pipeline, a second liquid level transmitter 18 and a second liquid level adjusting valve 16 are arranged on the pipeline connected between the gas washing tank 4 and the first sump oil tank, the second liquid level transmitter 18 monitors the liquid level of the gas washing tank 4 and transmits the liquid level to a central control system, and the central control system controls the opening of the second liquid level adjusting valve 16 according to the monitoring value of the second liquid level transmitter 18, so that the liquid level of the gas washing tank 4 is adjusted.
The output end of the gas washing tank 4 is connected with the flare gas manifold 5 in a through mode through a pipeline, a second pressure regulating valve 14 is arranged on the middle section of a connecting pipeline between the gas washing tank 4 and the flare gas manifold 5, a third pressure transmitter 12 is arranged at one end, close to the flare gas manifold 5, of the connecting pipeline between the flare gas manifold 5 and the compressor pry 3, and the upper end of the gas washing tank 4 is connected with a fourth pressure transmitter 13 through a pipeline.
The third pressure transmitter 12 monitors the pressure of the flare gas manifold 5 and transmits the pressure to the central control system, and the fourth pressure transmitter 13 monitors the pressure of the gas washing tank 4 and transmits the pressure to the central control system. In order to improve the pressure stability of the flare gas recovery system, the second pressure regulating valve 14 is selectively controlled, when the pressure is 470-550kPaG (kPa represents kilopascal, and G represents gauge pressure), the central control system controls the opening degree of the second pressure regulating valve 14 according to the monitoring value of the third pressure transmitter 12, and after the pressure exceeds the pressure range, the central control system controls the opening degree of the second pressure regulating valve 14 according to the monitoring value of the fourth pressure transmitter 13, so that a certain flare gas buffer space is provided for the flare gas recovery system, and the shutdown caused by overhigh or overlow inlet pressure of a gas compressor is prevented.
The second output end of the flare gas manifold 5 is communicated with the closed discharge tank 6 through a pipeline, so that a conventional check valve is omitted, flare gas can flow in two directions between the flare gas manifold 5 and the closed discharge tank 6 for buffering, and the volume of a flare gas recovery system is increased by the residual space of the closed discharge tank 6, so that the existing equipment of the offshore platform is fully utilized.
The bottom of torch branch fluid reservoir 2 is through connection of pipeline and second sump oil jar, is equipped with first liquid level control valve 15 and first liquid level changer 17 on the connecting line between torch branch fluid reservoir 2 and the second sump oil jar, and first liquid level changer 17 monitors the liquid level of torch branch fluid reservoir 2 and transmits to central control system, and central control system controls the aperture of first liquid level control valve 15 according to the monitoring value of first liquid level changer 17 to adjust the liquid level of torch branch fluid reservoir 2.
The flare head 1, the flare liquid separating tank 2, the compressor pry 3, the gas washing tank 4, the flare gas manifold 5, the closed discharge tank 6, the rupture disk 7, the first pressure regulating valve 8, the failed pneumatic quick-opening valve 9, the second pressure regulating valve 14, the first liquid level regulating valve 15, the second liquid level regulating valve 16, and the dirty oil tank are connected with the pipeline in a matched manner through flanges and fastening bolts;
the first pressure transmitter 10, the second pressure transmitter 11, the third pressure transmitter 12, the fourth pressure transmitter 13, the first liquid level transmitter 17 and the second liquid level transmitter 18 are provided with holes at positions on a pipeline, the holes are welded with a pressure guiding pipe, and then the components are connected with the pressure guiding pipe in a threaded manner;
the three-way structure part of the connecting pipeline among the flare liquid separating tank 2, the compressor pry 3 and the flare gas manifold 5 is connected in a welding mode.
The flare gas recovery system for the offshore oil production platform not only improves the operation efficiency, but also improves the stability and the safety of the system, and the existing equipment of the offshore oil production platform can be fully utilized.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A flare gas recovery system for an offshore production platform, characterized in that: the device comprises a torch head (1), a torch liquid separating tank (2) and a compressor pry (3) which are mutually communicated and connected through a pipeline, wherein a rupture disc (7), a first pressure regulating valve (8) and a pneumatic quick-opening valve (9) which is opened in a fault are parallelly arranged on the pipeline between the torch head (1) and the torch liquid separating tank (2), a first pressure transmitter (10) is arranged on the pipeline between the torch liquid separating tank (2) and the compressor pry (3), the first pressure transmitter (10) reads a system pressure value so as to control the opening and closing of the first pressure regulating valve (8) and the pneumatic quick-opening valve (9) which is opened in the fault, when the first pressure regulating valve (8) and the pneumatic quick-opening valve (9) which is opened in the fault are closed and the rupture disc (7) is intact, torch gas is conveyed to the compressor pry (3) through the pipeline to be recovered, and when the first pressure regulating valve (8), the pneumatic quick-opening valve (9) which is opened in the fault or the rupture disc (7) is broken, the flare gas is conveyed to the flare tip (1) through a pipeline to be released.
2. The flare gas recovery system for an offshore production platform of claim 1, wherein: the flare gas recovery system comprises a flare gas manifold (5), the flare gas manifold (5) is respectively communicated with a flare liquid separating tank (2) and a compressor pry (3) through a pipeline, the flare liquid separating tank (2), the compressor pry (3) and the flare gas manifold (5) are connected through a three-way pipeline, and a first pressure transmitter (10) is arranged at one end close to the flare liquid separating tank (2).
3. The flare gas recovery system for an offshore production platform of claim 2, wherein: one end that is close to compressor sled (3) on the pipeline between torch branch fluid reservoir (2) and compressor sled (3) sets up second pressure transmitter (11), and second pressure transmitter (11) read the system pressure value to control compressor sled (3) frequency conversion frequency.
4. The flare gas recovery system for an offshore production platform of claim 3, wherein: compressor sled (3) pass through pipeline and gas washing jar (4) through-connection, gas washing jar (4) bottom is through pipeline and first sump oil jar through-connection, set up second liquid level transmitter (18) and second liquid level regulating valve (16) on the pipeline between gas washing jar (4) and the first sump oil jar, second liquid level transmitter (18) read the liquid level of gas washing jar (4) to the aperture of control second liquid level regulating valve (16).
5. The flare gas recovery system for an offshore production platform of claim 4, wherein: gas washing jar (4) are through-going connection through pipeline and torch gas manifold (5), set up second pressure regulating valve (14) on the pipeline between gas washing jar (4) and torch gas manifold (5), be close to torch gas manifold (5) one end on the pipeline between torch gas manifold (5) and compressor sled (3) and set up third pressure transmitter (12), the upper end of gas washing jar (4) is through pipe connection fourth pressure transmitter (13), the pressure value of torch gas manifold (5) is read in third pressure transmitter (12), the pressure value of gas washing jar (4) is read in fourth pressure transmitter (13) to give the aperture of second pressure regulating valve (14) jointly.
6. The flare gas recovery system for an offshore production platform of claim 5, wherein: the flare gas manifold (5) is communicated with the closed discharge tank (6) through a pipeline, so that flare gas flows bidirectionally between the flare gas manifold (5) and the closed discharge tank (6).
7. The flare gas recovery system for an offshore production platform of claim 1, wherein: the device is characterized in that the bottom of the torch liquid separating tank (2) is in through connection with the second sump tank through a pipeline, a first liquid level adjusting valve (15) and a first liquid level transmitter (17) are arranged on the pipeline between the torch liquid separating tank (2) and the second sump tank, and the liquid level of the torch liquid separating tank (2) is read by the first liquid level transmitter (17), so that the opening degree of the first liquid level adjusting valve (15) is controlled.
8. The flare gas recovery system for an offshore production platform of claim 1, wherein: the compressor sled (3) includes a forward cooler, a screw compressor, an after cooler, and a scrubber.
9. The flare gas recovery system for an offshore production platform of claim 5, wherein: the pipeline pressure measuring device is characterized in that positions, located on a pipeline, of the first pressure transmitter (10), the second pressure transmitter (11), the third pressure transmitter (12), the fourth pressure transmitter (13) and the second liquid level transmitter (18) are provided with holes, the holes are connected with the pressure guiding pipe, and the first pressure transmitter (10), the second pressure transmitter (11), the third pressure transmitter (12), the fourth pressure transmitter (13), the second liquid level transmitter (18) and the pressure guiding pipe are connected in a threaded mode.
10. The flare gas recovery system for an offshore production platform of claim 7, wherein: the position that first liquid level transmitter (17) are located the pipeline sets up the trompil, and the pipe is pressed in the trompil connection, first liquid level transmitter (17) and the pipe of pressing are connected with the mode of screw thread.
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| CN202010529118.9A CN113324256A (en) | 2020-06-11 | 2020-06-11 | Flare gas recovery system for offshore oil production platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982532A (en) * | 2021-10-12 | 2022-01-28 | 中海石油(中国)有限公司 | Offshore platform flare gas recovery system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982532A (en) * | 2021-10-12 | 2022-01-28 | 中海石油(中国)有限公司 | Offshore platform flare gas recovery system and method |
| CN113982532B (en) * | 2021-10-12 | 2023-12-08 | 中海石油(中国)有限公司 | Offshore platform flare gas recovery system and method |
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