CN201080819Y - Offshore platform natural gas ultra-high pressure reinjection system - Google Patents
Offshore platform natural gas ultra-high pressure reinjection system Download PDFInfo
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- CN201080819Y CN201080819Y CNU2007200986092U CN200720098609U CN201080819Y CN 201080819 Y CN201080819 Y CN 201080819Y CN U2007200986092 U CNU2007200986092 U CN U2007200986092U CN 200720098609 U CN200720098609 U CN 200720098609U CN 201080819 Y CN201080819 Y CN 201080819Y
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Abstract
The utility model relates to a natural gas ultrahigh pressure reinjection system on platform at sea, which comprises a fuel air compressor unit, a turbine generator unit, a torch unit, and a gas injection compressor unit that receives fuel gas by the gas injection compressor inlet scrubber; a gas injection compressor outlet pressure jar connected with the gas injection compressor unit, the gas discharge opening of the pressure jar passes through two groups of pressure adjusting valves and reaches the torch unit; a gas injection compressor outlet filter connected with the gas discharge opening of the pressure jar; a gas injection compressor outlet cooler that is connected with the gas discharge opening of the gas injection compressor outlet filter and can cool the filtered natural gas down and then transfers the natural gas into the gas injection well; the lower ends of the gas injection compressor inlet scrubber, the gas injection compressor outlet pressure jar, and the gas injection compressor outlet filter are respectively connected with a discharge unit. Under the precondition of ensuring gas supply of the generating unit, the utility model can re-inject the associated gas under the well for gas driving, reduce oilfield operation cost, and realize reasonable utilization of natural gas resource, thereby reaching the purpose of driving oil and increasing yield, moreover the utility model can play the role of environmental protection.
Description
Technical field
The utility model relates to the oil gas treatment system of a kind of oil field with electric power system.Particularly relate to a kind of offshore platform natural gas super-pressure re-injection system that unnecessary natural gas injection down-hole can be stored to use after treating.
Background technology
Be positioned at the gas field in Chinese marine site, natural gas is through dewatering after extra large pipe is delivered to land terminal; Be positioned at the oil field in Chinese marine site, natural gas mainly satisfies the turbine needs, and unnecessary natural gas generally all is to burn in vain by torch.By the end of now,, also there is not efficient ways for handling unnecessary natural gas (being usually said associated gas).
With oil field, Luda is example, and Luda 10-1CEP is the central platform of Luda Oilfield Group, is responsible for the supply of electric power of WHPA, 4-2 and 5-2, is responsible for the oil gas of 4-2 and WHPA simultaneously and handles.
Along with the exploitation in oil field, three main frames of Luda CEP dual-purpose are equipped with at present, and the separate unit main unit load is 4500kW, and the day air consumption of two main frames is about 10 * 10
4M3, WHPA and 4-2 produce the day air consumption of association tolerance much larger than main frame, cause remaining a large amount of associated gases by the emptying of torch unit, cause significant wastage.According to the data that oil reservoir provides, the gas production in oil field, Luda constantly descends, and by 2011, can not satisfy the air feed demand of turbine, must expend the work requirements that a large amount of diesel oil is kept turbine.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of and unnecessary natural gas can be injected the offshore platform natural gas super-pressure re-injection system of down-hole storage to use after treating.
The technical scheme that the utility model adopted is: a kind of offshore platform natural gas super-pressure re-injection system, include: the compress fuel gas machine unit that fuel gas is provided, receive the turbine generators unit of the fuel gas of discharging compress fuel gas machine unit by the fuel gas washer, and the torch unit, also be provided with by gas injection suction port of compressor washer reception fuel gas and to its gas injection compressor unit that compresses; The gas injection compressor outlet vacuum tank that links to each other the gas after the compression is carried out voltage stabilizing with the gas discharge outlet of gas injection compressor unit, the gas discharge outlet of described gas injection compressor outlet vacuum tank is by passing through two groups of pressure-regulating valves of contacting to the torch unit; The gas injection compressor outlet strainer that links to each other with the gas discharge outlet of gas injection compressor outlet vacuum tank; Link to each other with the gas discharge outlet of gas injection compressor outlet strainer, will send into the gas injection compressor outlet cooler of gas injection well after the fuel gas cooling after filtering; Wherein, the outlet of the lower end of gas injection suction port of compressor washer, gas injection compressor outlet vacuum tank and gas injection compressor outlet strainer all is connected exhaust unit; The gas discharge outlet of gas injection compressor outlet vacuum tank is also connected to the torch unit.
Described gas injection compressor unit is to be in parallel to be provided with by a gas injection compressor and No. two gas injection compressors to constitute, both inputs all connect the gas discharge outlet of gas injection suction port of compressor washer, and output all connects the gas inlet port of gas injection compressor outlet vacuum tank.
Also be provided with pressure-regulating valve between described gas injection suction port of compressor washer and the gas injection compressor outlet vacuum tank.
Described gas injection suction port of compressor washer also is communicated with the torch unit by bleed valve.
Described gas injection compressor outlet vacuum tank also is communicated with the torch unit by bleed valve.
The gas input port of described gas injection suction port of compressor washer is to be connected by the gas output end of one group of pressure-regulating valve with compress fuel gas machine unit.
The gas discharge outlet of described gas injection compressor outlet vacuum tank also is communicated with the torch unit by pressure-regulating valve.
The gas inlet port of described gas injection compressor outlet strainer is connected by the gas discharge outlet of gas injection flow meter with gas injection compressor outlet vacuum tank.
Also be provided with one group of pressure-regulating valve between described gas injection compressor outlet strainer and the gas injection compressor outlet cooler.
Offshore platform natural gas super-pressure re-injection system of the present utility model; system architecture is simple; under the prerequisite that guarantees generator unit usefulness gas; can be with gas drive under the residue associated gas reinjection well; can make full use of the natural gas resource of Oilfield Group, reduce oilfield operations and take, realize the reasonable utilization of unnecessary natural gas resource; reach the purpose of displacement of reservoir oil volume increase, and played the effect of environmental protection.
Description of drawings
Fig. 1 is that system of the present utility model constitutes schematic diagram.
Wherein:
1: fuel gas washer 2: gas injection suction port of compressor washer
4: No. two gas injection compressors of 3: numbers gas injection compressors
5: gas injection compressor outlet vacuum tank 6: gas injection flow meter
7: gas injection compressor outlet strainer 8: gas injection compressor outlet cooler
9: gas injection well 10: compress fuel gas machine unit
11: turbine generators unit 12: the torch unit
13: gas injection compressor unit 14: exhaust unit
15: pressure-regulating valve 16: bleed valve
17: bleed valve
The specific embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify offshore platform natural gas super-pressure re-injection system of the present utility model.
As shown in Figure 1, offshore platform natural gas super-pressure re-injection system of the present utility model, include: the compress fuel gas machine unit 10 of fuel gas is provided, receives the turbine generators unit 11 of the fuel gas of discharging compress fuel gas machine unit 10 and torch unit 12 by fuel gas washer 1.
Also be provided with by gas injection suction port of compressor washer 2 reception fuel gas and to its gas injection compressor unit 13 that compresses; The gas injection compressor outlet vacuum tank 5 that links to each other the gas after the compression is carried out voltage stabilizing with the gas discharge outlet of gas injection compressor unit 13, the gas discharge outlet of described gas injection compressor outlet vacuum tank 5 is communicated with torch unit 12 (these two groups of pressure-regulating valves are used for keeping the pressure stability of gas injection compressor outlet vacuum tank 5, thereby can guarantee gas injection compressor unit 13 normal steady operations) by the pressure-regulating valve 15 of two groups of polyphones; Wherein, described gas injection compressor unit 13 is to be in parallel to be provided with by a gas injection compressor 3 and No. two gas injection compressors 4 to constitute, both inputs all connect the gas discharge outlet of gas injection suction port of compressor washer 2, and output all connects the gas inlet port of gas injection compressor outlet vacuum tank 5.And also be provided with between described gas injection suction port of compressor washer 2 and the gas injection compressor outlet vacuum tank 5 two groups the polyphone pressure-regulating valves 15 (these two groups of pressure-regulating valves are used for keeping the pressure stability of gas injection suction port of compressor washer 2, thereby can guarantee gas injection compressor unit 13 normal steady operations).
Described gas injection suction port of compressor washer 2 also is communicated with torch unit 12 by bleed valve 16.Described gas injection compressor outlet vacuum tank 5 also is communicated with torch unit 12 by bleed valve 17.
The gas discharge outlet of gas injection compressor outlet vacuum tank 5 also connects gas injection compressor outlet strainer 7.And the gas discharge outlet of gas injection compressor outlet vacuum tank 5 is to be connected by the gas inlet port of gas injection flow meter 6 with gas injection compressor outlet strainer 7.
Send into the gas injection compressor outlet cooler 8 of gas injection well 9 after the fuel gas cooling after the gas discharge outlet connection of gas injection compressor outlet strainer 7 will be filtered;
The lower end outlet of gas injection recited above suction port of compressor washer 2, gas injection compressor outlet vacuum tank 5 and gas injection compressor outlet strainer 7 all is connected exhaust unit 14; The gas discharge outlet of gas injection compressor outlet vacuum tank 5 is also connected to torch unit 12.
The gas input port of described gas injection suction port of compressor washer 2 is to be connected by the gas output end of one group of pressure-regulating valve 15 with compress fuel gas machine unit 10.This group pressure-regulating valve is used for keeping the pressure stability of fuel gas washer 1, thereby can guarantee the fuel gas pressure stability of generator unit inlet.
Between described gas injection compressor outlet strainer 7 and the gas injection compressor outlet cooler 8 one group of pressure-regulating valve 15 is set also.This group pressure-regulating valve is used for keeping the pressure stability of gas injection compressor outlet strainer 7, thereby can guarantee the pressure stability of gas injection compressor outlet vacuum tank 5.
The course of work of the present utility model is as follows:
The unnecessary fuel gas of compress fuel gas machine unit 10 outputs of fuel gas is provided, by entering gas injection suction port of compressor washer 2 after pressure-regulating valve 15 step-downs, when washer 2 inlet fuel gas source of the gas sufficient pressurising force in gas injection suction port of compressor are stablized, pressure-regulating valve 15 is normally opened, and unnecessary fuel gas will enter gas injection suction port of compressor washer 2 by pressure-regulating valve 15; When the inadequate pressure of gas injection suction port of compressor washer 2 inlet fuel gas sources of the gas reduced, the aperture of pressure-regulating valve 15 will reduce gradually, and the fuel gas of the overwhelming majority all enters fuel gas washer 1, to guarantee the operate as normal of turbine.
Gas injection suction port of compressor washer 2 is a gas-liquid two-phase separator, and fluid discharge is to enclosed exhaust unit 14, and the natural gas of removing after the entrained liquids is discharged from gas injection suction port of compressor washer 2.Stable for guaranteeing gas injection compressor 13 inlet pressures, between gas injection suction port of compressor washer 2 and gas injection compressor outlet vacuum tank 5, be provided with two groups of pressure-regulating valves 15, be used for keeping the pressure stability of gas injection suction port of compressor washer 2: when the pressure of gas injection suction port of compressor washer 2 was lower than setting value, the high-pressure natural gas in the gas injection compressor outlet vacuum tank 5 can be by entering gas injection suction port of compressor washer 2 after two groups of pressure-regulating valve step-downs; When the pressure of gas injection suction port of compressor washer 2 during more than or equal to setting value, these two groups of pressure-regulating valves 15 can cut out gradually.Stable for guaranteeing gas injection compressor 13 inlet pressures, on washer 2 outlet lines of gas injection suction port of compressor, be provided with a bleed valve 16 and go to the torch unit, when the pressure of gas injection suction port of compressor washer 2 surpassed setting value, unnecessary natural gas can be gone to torch unit 12 by this bleed valve 16; When the pressure of gas injection suction port of compressor washer 2 was lower than setting value, this group pressure-regulating valve can cut out gradually.
Enter gas injection compressor outlet vacuum tank 5 after natural gas process gas injection compressor unit 13 superchargings of gas injection suction port of compressor washer 2 discharges, the drop discharge that leaches is to enclosed exhaust unit 14.In order to keep the pressure stability of gas injection compressor outlet vacuum tank 5, the pressure-regulating valve 15 that is provided with two groups of polyphones on gas injection compressor outlet vacuum tank 5 outlet lines is gone to torch unit 12, when the pressure of gas injection compressor outlet vacuum tank 5 surpassed setting value, unnecessary natural gas can be gone to torch unit 12 by these two groups of pressure-regulating valves 15; When the pressure of gas injection compressor outlet vacuum tank 5 was lower than setting value, these two groups of pressure-regulating valves 15 can cut out gradually.
High-pressure natural gas after process gas injection compressor outlet vacuum tank 5 is stablized enters gas injection compressor outlet strainer 7 and filters after measuring through gas injection flow meter 6, and drop that leaches and dust emission arrive enclosed exhaust unit 14.Between gas injection compressor outlet strainer 7 and gas injection compressor outlet cooler 8, one group of pressure-regulating valve 15 is set also.This group pressure-regulating valve 15 is used for keeping the pressure stability of gas injection compressor outlet strainer 7, thereby can guarantee the pressure stability of gas injection compressor outlet vacuum tank 5: when the pressure of gas injection compressor outlet vacuum tank 5 surpasses setting value, this group pressure-regulating valve 15 can be held greatly gradually, and natural gas can be organized pressure-regulating valve 15 by this and go to gas injection well 9; When the pressure of gas injection compressor outlet vacuum tank 5 was lower than setting value, this group pressure-regulating valve can turn down gradually.
The natural gas that process gas injection compressor outlet strainer 7 filters enters and enters gas injection well 9 after gas injection compressor outlet cooler 8 cools.
Claims (8)
1. offshore platform natural gas super-pressure re-injection system, include: the compress fuel gas machine unit (10) that fuel gas is provided, receive the turbine generators unit (11) of the fuel gas of discharging compress fuel gas machine unit (10) by fuel gas washer (1), and torch unit (12), it is characterized in that, also be provided with by gas injection suction port of compressor washer (2) reception fuel gas and to its gas injection compressor unit (13) that compresses; The gas injection compressor outlet vacuum tank (5) that links to each other the gas after the compression is carried out voltage stabilizing with the gas discharge outlet of gas injection compressor unit (13), the gas discharge outlet of described gas injection compressor outlet vacuum tank (5) is communicated with torch unit (12) by the pressure-regulating valve (15) of two groups of polyphones; The gas injection compressor outlet strainer (7) that links to each other with the gas discharge outlet of gas injection compressor outlet vacuum tank (5); Link to each other with the gas discharge outlet of gas injection compressor outlet strainer (7), will send into the gas injection compressor outlet cooler (8) of gas injection well (9) after the fuel gas cooling after filtering; Wherein, the outlet of the lower end of gas injection suction port of compressor washer (2), gas injection compressor outlet vacuum tank (5) and gas injection compressor outlet strainer (7) all is connected exhaust unit (14); The gas discharge outlet of gas injection compressor outlet vacuum tank (5) is also connected to torch unit (12).
2. offshore platform natural gas super-pressure re-injection system according to claim 1, it is characterized in that, described gas injection compressor unit (13) is to be in parallel by a gas injection compressor (3) and No. two gas injection compressors (4) formation is set, both inputs all connect the gas discharge outlet of gas injection suction port of compressor washer (2), and output all connects the gas inlet port of gas injection compressor outlet vacuum tank (5).
3. offshore platform natural gas super-pressure re-injection system according to claim 1 is characterized in that, also is provided with the pressure-regulating valve (15) of two groups of polyphones between described gas injection suction port of compressor washer (2) and the gas injection compressor outlet vacuum tank (5).
4. offshore platform natural gas super-pressure re-injection system according to claim 1 is characterized in that, described gas injection suction port of compressor washer (2) also is communicated with torch unit (12) by bleed valve (16).
5. offshore platform natural gas super-pressure re-injection system according to claim 1 is characterized in that, described gas injection compressor outlet vacuum tank (5) also is communicated with torch unit (12) by bleed valve (17).
6. offshore platform natural gas super-pressure re-injection system according to claim 1, it is characterized in that the gas input port of described gas injection suction port of compressor washer (2) is to be connected by the gas output end of pressure-regulating valve (15) with compress fuel gas machine unit (10) by one group.
7. offshore platform natural gas super-pressure re-injection system according to claim 1, it is characterized in that the gas inlet port of described gas injection compressor outlet strainer (7) is connected by the gas discharge outlet of gas injection flow meter (6) with gas injection compressor outlet vacuum tank (5).
8. offshore platform natural gas super-pressure re-injection system according to claim 1 is characterized in that, between described gas injection compressor outlet strainer (7) and the gas injection compressor outlet cooler (8) one group of pressure-regulating valve (15) is set also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200986092U CN201080819Y (en) | 2007-09-21 | 2007-09-21 | Offshore platform natural gas ultra-high pressure reinjection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200986092U CN201080819Y (en) | 2007-09-21 | 2007-09-21 | Offshore platform natural gas ultra-high pressure reinjection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080819Y true CN201080819Y (en) | 2008-07-02 |
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ID=39614493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200986092U Expired - Lifetime CN201080819Y (en) | 2007-09-21 | 2007-09-21 | Offshore platform natural gas ultra-high pressure reinjection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080819Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122223B (en) * | 2007-09-21 | 2010-09-29 | 中国海洋石油总公司 | Offshore platform rich natural gas re-injection system |
| CN102787836A (en) * | 2011-05-20 | 2012-11-21 | 中国石油集团渤海石油装备制造有限公司 | Liquid reinjection system for oil-gas mixed transportation |
| CN112146271A (en) * | 2020-09-24 | 2020-12-29 | 中海石油(中国)有限公司 | An ultra-high pressure heat exchange system |
-
2007
- 2007-09-21 CN CNU2007200986092U patent/CN201080819Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122223B (en) * | 2007-09-21 | 2010-09-29 | 中国海洋石油总公司 | Offshore platform rich natural gas re-injection system |
| CN102787836A (en) * | 2011-05-20 | 2012-11-21 | 中国石油集团渤海石油装备制造有限公司 | Liquid reinjection system for oil-gas mixed transportation |
| CN112146271A (en) * | 2020-09-24 | 2020-12-29 | 中海石油(中国)有限公司 | An ultra-high pressure heat exchange system |
| CN112146271B (en) * | 2020-09-24 | 2022-02-25 | 中海石油(中国)有限公司 | An ultra-high pressure heat exchange system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 539, Tianjin, Tanggu 300452, P. R. C. Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China National Offshore Oil Corporation Address before: 539, Tianjin, Tanggu 300452, P. R. C. Co-patentee before: CNOOC Oil Base Group Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080702 Effective date of abandoning: 20070921 |