CN104763403A - Ground high-low pressure mixed gas-liquid separation system based on multi-reservoir commingling production gas field - Google Patents
Ground high-low pressure mixed gas-liquid separation system based on multi-reservoir commingling production gas field Download PDFInfo
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- CN104763403A CN104763403A CN201510135236.0A CN201510135236A CN104763403A CN 104763403 A CN104763403 A CN 104763403A CN 201510135236 A CN201510135236 A CN 201510135236A CN 104763403 A CN104763403 A CN 104763403A
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- 239000007788 liquid Substances 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 238000000926 separation method Methods 0.000 title claims abstract description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 64
- 238000004886 process control Methods 0.000 claims description 62
- 239000003345 natural gas Substances 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 31
- 230000008676 import Effects 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 16
- 238000013404 process transfer Methods 0.000 claims description 14
- 239000007792 gaseous phase Substances 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 239000012071 phase Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
The invention provides a ground high-low pressure mixed gas-liquid separation system based on a multi-reservoir commingling production gas field. The ground high-low pressure mixed gas-liquid separation system comprises a gas inlet pipeline and a gas-liquid separator; an in-station block valve is arranged on the gas inlet pipeline; the outlet end of the in-station block valve is communicated with a high-low flow switching valve bank; the high-low flow switching valve bank is composed of a high-pressure flow control valve and a low-pressure flow control valve, the two of which are communicated in parallel to the outlet end of the in-station block valve. The ground high-low pressure mixed gas-liquid separation system is capable of simultaneously meeting the natural gas-liquid separation requirements in different production manners such as total high-pressure production, high-low pressure mixed production and total low-pressure production.
Description
Technical field
The invention belongs to gas-liquid separation technical field, be specifically related to a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs.
Background technology
In gas field development process, exploitation dealer often adopts different development schemes according to the difference of gas reservoir pressure characteristic, and different development schemes determines the different pressure system of surface gathering and transferring.Some gas field is owing to adopting multilayer system development scheme, and different layers cording has different gas reservoir evaluation and development scheme, and like this, the pressure system of surface gathering and transferring is often not only a set of.
In order to regain development cost fast, realize maximizing the benefits, high for output, the slow gas well of gas reservoir pressure decline speed often adopts the mode of production of initial stage high pressure, later stage low pressure; And lower for output, the gas well then usual low pressure of the maintenance always mode of production that gas reservoir decline of pressure is fast.Therefore, may there is high and low pressure two Raw gas in the inner gas gathering station in gas field of multilayer system exploitation, and owing to connecing the difference of well order, the situation that whole high pressure is produced, all low pressure is produced, high-low pressure is produced simultaneously may appear in same seat gas gathering station simultaneously.In order to the natural gas separation requirement under satisfied different operating pressure, in gas gathering station, often need the gas-liquid separator that different designs pressure is set.The high pressure production phase, gas gathering station need arrange the separation that high-pressure separator realizes gas-liquid, and be the needs meeting low pressure production, often need to arrange low pressure separator in addition, like this, when the gas field development later stage all proceeds to low pressure production, the high-pressure separator in standing will leave unused in a large number, cause the waste of equipment, the increase of engineering cost.
Summary of the invention
The object of this invention is to provide a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs, the natural gas gas-liquid separation requirement under the different mode of production such as the production of whole high pressure, high-low pressure mixture manufacturing, all low pressure production can be met simultaneously.
For this reason, the invention provides a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs, comprise admission line and gas-liquid separator, described admission line is provided with the block valve that enters the station, the port of export of the described block valve that enters the station is communicated with high-low pressure process transfer valve group, and described high-low pressure process transfer valve group is made up of the high-pressure process control valve be communicated with side by side with the port of export of the block valve that enters the station and low pressure process control valve;
Described high-pressure process control valve is communicated with the entrance point of gas-liquid separator by being separated front high pressure remittance tracheae, before described separation, high pressure remittance tracheae is provided with eliminator import high-pressure process control valve, high pressure remittance tracheae after the gaseous phase outlet end of described gas-liquid separator is communicated with and is separated, after this separation, high pressure remittance tracheae is provided with separator outlet high-pressure process control valve, remittance liquid pipe after the liquid-phase outlet end of described gas-liquid separator is communicated with and is separated;
Described low pressure process control valve is communicated with the entrance point of gas-liquid separator by being separated front low pressure remittance tracheae, before described separation, low pressure remittance tracheae is provided with eliminator import low pressure process control valve, low pressure remittance tracheae after the gaseous phase outlet end of described gas-liquid separator is communicated with and is separated, after this separation, low pressure remittance tracheae is provided with separator outlet low pressure process control valve.
After described separation, the high pressure remittance tracheae port of export is connected with flow meter.
After described separation, the low pressure remittance tracheae port of export is connected with natural gas compressor, and this natural gas compressor port of export is communicated with flow meter.
Converge after described separation on liquid pipe and be provided with eliminator discharge opeing block valve and eliminator discharge opeing control valve 19 successively.
The liquid pipe that converges after described separation is communicated with fluid reservoir.
The invention has the beneficial effects as follows: the present invention can meet the natural gas gas-liquid separation requirement under the different mode of production such as the production of whole high pressure, high-low pressure mixture manufacturing, all low pressure production simultaneously.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is high-low pressure process transfer valve group structural representation;
Fig. 3 is structure of gas liquid separator schematic diagram.
In figure: 1, enter the station block valve; 2, high-low pressure process transfer valve group; 3, high pressure remittance tracheae before being separated; 4, low pressure remittance tracheae before being separated; 5, gas-liquid separator; 6, high pressure remittance tracheae after being separated; 7, low pressure remittance tracheae after being separated; 8, flow meter; 9, natural gas compressor; 10, remittance liquid pipe after being separated; 11, fluid reservoir; 12, high-pressure process control valve; 13, low pressure process control valve; 14, eliminator import high-pressure process control valve; 15, eliminator import low pressure process control valve; 16, separator outlet high-pressure process control valve; 17, separator outlet low pressure process control valve; 18, eliminator discharge opeing block valve; 19, eliminator discharge opeing control valve.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs, comprise admission line and gas-liquid separator 5, described admission line is provided with the block valve 11 that enters the station, the described port of export entering the station block valve 11 is communicated with high-low pressure process transfer valve group 2, and described high-low pressure process transfer valve group 2 is made up of the high-pressure process control valve 12 be communicated with side by side with the port of export of the block valve 11 that enters the station and low pressure process control valve 13;
Described high-pressure process control valve 12 is communicated with the entrance point of gas-liquid separator 5 by being separated front high pressure remittance tracheae 3, before described separation, high pressure remittance tracheae 3 is provided with eliminator import high-pressure process control valve 14, high pressure remittance tracheae 6 after the gaseous phase outlet end of described gas-liquid separator 5 is communicated with and is separated, after this separation, high pressure remittance tracheae 6 is provided with separator outlet high-pressure process control valve 16, remittance liquid pipe 10 after the liquid-phase outlet end of described gas-liquid separator 5 is communicated with and is separated;
Described low pressure process control valve 13 is communicated with the entrance point of gas-liquid separator 5 by being separated front low pressure remittance tracheae 4, before described separation, low pressure remittance tracheae 4 is provided with eliminator import low pressure process control valve 15, low pressure remittance tracheae 7 after the gaseous phase outlet end of described gas-liquid separator 5 is communicated with and is separated, after this separation, low pressure remittance tracheae 7 is provided with separator outlet low pressure process control valve 17.
In the present embodiment, when high pressure is produced, high-pressure natural gas enters by admission line the block valve 11 that enters the station, the block valve 11 that enters the station can realize every road and to enter the station pipeline independence turn-off function, enters high-low pressure process transfer valve group 2 afterwards, as shown in Figure 2, high-pressure process control valve 12 is connected, low pressure process control valve 13 is closed, and before high-pressure natural gas all will import and be separated, high pressure remittance tracheae 3, enters gas-liquid separator 5 afterwards; The eliminator import high-pressure process control valve 14 of gas-liquid separator 5 entrance point is connected, eliminator import low pressure process control valve 15 is closed, the separator outlet high-pressure process control valve 16 of gaseous phase outlet end is connected, separator outlet low pressure process control valve 17 closes natural gas after gas-liquid separation, gas phase is entered by separator outlet high-pressure process control valve 16 and is separated rear high pressure remittance tracheae 6, finally exports; Liquid phase is converged liquid pipe 10 enter separation after being separated after and is discharged.
When low pressure is produced, low pressure natural gas enters by admission line the block valve 11 that enters the station, enter high-low pressure process transfer valve group 2 afterwards, as shown in Figure 2, high-pressure process control valve 12 is closed, low pressure process control valve 13 is connected, and before low pressure natural gas all will import and be separated, low pressure remittance tracheae 4, enters gas-liquid separator 5 afterwards; The eliminator import high-pressure process control valve 14 of gas-liquid separator 5 entrance point is closed, eliminator import low pressure process control valve 15 is connected, the separator outlet high-pressure process control valve 16 of gaseous phase outlet end is closed, separator outlet low pressure process control valve 17 is connected, natural gas is after gas-liquid separation, gas phase is entered by separator outlet low pressure process control valve 17 and is separated rear low pressure remittance tracheae 7, finally exports; Natural gas compressor 9 enters the flow meter 8 in downstream after pressure is increased to high-pressure horizontal, liquid phase is converged liquid pipe 10 enter separation after being separated after and discharged.
In standing, there are high-low pressure two kinds of production status simultaneously, realizing running by said method by arranging many cover systems simultaneously.
The present embodiment can meet the natural gas gas-liquid separation requirement under the different mode of production such as the production of whole high pressure, high-low pressure mixture manufacturing, all low pressure production simultaneously.
Embodiment 2:
On the basis of embodiment 1, after being separated, high pressure remittance tracheae 6 port of export is connected with flow meter 8; After being separated, low pressure remittance tracheae 7 port of export is connected with natural gas compressor 9, and this natural gas compressor 9 port of export is communicated with flow meter 8.
In the present embodiment, flow meter 8 can meet natural gas flow measuring demand, and low pressure natural gas can be increased to high-pressure horizontal by the natural gas compressor 9 that after being separated, low pressure remittance tracheae 7 port of export connects, and is connected to flow meter 8 and carries out flow measurement after supercharging.
Embodiment 3:
Present embodiments provide a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs as shown in Figure 1, the present embodiment is set up in parallel many this gas-liquid mixture piece-rate systems of group, to meet different demand simultaneously.
As shown in Figure 1, the natural gas that enters the station first enters through admission line the block valve 11 that enters the station, the block valve 11 that enters the station is communicated with high-low pressure process transfer valve group 2 entrance point, the high-pressure process control valve 12 of high-low pressure process transfer valve group 2 port of export and low pressure process control valve 13 respectively be separated front high pressure and converge tracheae 3 and be separated front low pressure and converge tracheae 4 and be communicated with, before separation, high pressure remittance tracheae 3 and separation front low pressure remittance tracheae 4 are connected into eliminator import high-pressure process control valve 14 and the eliminator import low pressure process control valve 15 of gas-liquid separator 5 entrance point more respectively, the separator outlet high-pressure process control valve 16 of gas-liquid separator 5 gaseous phase outlet end and separator outlet low pressure process control valve 17 more respectively be separated rear high pressure and converge tracheae 6 and be separated rear low pressure and converge tracheae 7 and be connected, after being separated, high pressure remittance tracheae 6 is connected with flow meter 8, after being separated, low pressure remittance tracheae 7 is connected with natural gas compressor 9 entrance point, natural gas compressor 9 port of export is connected into flow meter 8 again, gas-liquid separator 5 liquid-phase outlet end through eliminator discharge opeing block valve 18 be connected into respectively after eliminator discharge opeing control valve 19 be separated after converge liquid pipe 10, the liquid pipe 10 that converges after being separated is communicated with fluid reservoir 11 again.
When high pressure is produced, each road high-pressure natural gas is first through entering the station block valve 11, every road can be realized to enter the station pipeline independence turn-off function, enter high-low pressure process transfer valve group 2 afterwards, as shown in Figure 2, high-pressure process control valve 12 is all connected, low pressure process control valve 13 Close All, high pressure remittance tracheae 3 before natural gas all will import and be separated, enter gas-liquid separator 5 afterwards, as shown in Figure 3, the eliminator import high-pressure process control valve 14 of gas-liquid separator 5 entrance point is connected, eliminator import low pressure process control valve 15 is closed, the separator outlet high-pressure process control valve 16 of gaseous phase outlet end is connected, separator outlet low pressure process control valve 17 is closed, natural gas is after gas-liquid separation, the flow meter 8 that gas phase enters downstream carries out flow measurement, liquid phase through eliminator discharge opeing block valve 18 import respectively after eliminator discharge opeing control valve 19 be separated after converge liquid pipe 10, enter fluid reservoir 11 afterwards to carry out processing and storage operation.
When low pressure is produced, each road low pressure natural gas is first through entering the station block valve 11, every road can be realized to enter the station pipeline independence turn-off function, enter high-low pressure process transfer valve group 2 afterwards, as shown in Figure 2, high-pressure process control valve 12 Close All, low pressure process control valve 13 is all connected, low pressure remittance tracheae 4 before natural gas all will import and be separated, enter gas-liquid separator 5 afterwards, as shown in Figure 3, the eliminator import high-pressure process control valve 14 of gas-liquid separator 5 entrance point is closed, eliminator import low pressure process control valve 15 is connected, the separator outlet high-pressure process control valve 16 of gaseous phase outlet end is closed, separator outlet low pressure process control valve 17 is connected, natural gas is after gas-liquid separation, gas phase enters the flow meter 8 entering downstream after pressure is increased to high-pressure horizontal by natural gas compressor 9, liquid phase through eliminator discharge opeing block valve 18 import respectively after eliminator discharge opeing control valve 19 be separated after converge liquid pipe 10, enter fluid reservoir 11 afterwards to carry out processing and storage operation.
In standing, there are high-low pressure two kinds of production status simultaneously, also can realize running by said method simultaneously.
In sum, instant invention overcomes the shortcoming of prior art, the natural gas gas-liquid separation requirement under the different mode of production such as the production of whole high pressure, high-low pressure mixture manufacturing, all low pressure production can be met simultaneously.
The present embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (5)
1. one kind is closed the ground high-low pressure gas-liquid mixture piece-rate system in gas production field based on many reservoirs, comprise admission line and gas-liquid separator (5), it is characterized in that: described admission line is provided with the block valve that enters the station (1), the port of export of the described block valve that enters the station (1) is communicated with high-low pressure process transfer valve group (2), and described high-low pressure process transfer valve group (2) is made up of the high-pressure process control valve (12) be communicated with side by side with the port of export of the block valve that enters the station (1) and low pressure process control valve (13);
Described high-pressure process control valve (12) is communicated with the entrance point of gas-liquid separator (5) by being separated front high pressure remittance tracheae (3), before described separation, high pressure remittance tracheae (3) is provided with eliminator import high-pressure process control valve (14), high pressure remittance tracheae (6) after the gaseous phase outlet end of described gas-liquid separator (5) is communicated with and is separated, after this separation, high pressure remittance tracheae (6) is provided with separator outlet high-pressure process control valve (16), remittance liquid pipe (10) after the liquid-phase outlet end of described gas-liquid separator (5) is communicated with and is separated;
Described low pressure process control valve (13) is communicated with the entrance point of gas-liquid separator (5) by being separated front low pressure remittance tracheae (4), before described separation, low pressure remittance tracheae (4) is provided with eliminator import low pressure process control valve (15), low pressure remittance tracheae (7) after the gaseous phase outlet end of described gas-liquid separator (5) is communicated with and is separated, after this separation, low pressure remittance tracheae (7) is provided with separator outlet low pressure process control valve (17).
2. a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs according to claim 1, is characterized in that: after described separation, high pressure remittance tracheae (6) port of export is connected with flow meter (8).
3. a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs according to claim 2, it is characterized in that: after described separation, low pressure remittance tracheae (7) port of export is connected with natural gas compressor (9), and this natural gas compressor (9) port of export is communicated with flow meter (8).
4. a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs according to claim 1, is characterized in that: converge after described separation on liquid pipe (10) and be provided with eliminator discharge opeing block valve (18) and eliminator discharge opeing control valve (19) successively.
5. a kind of ground high-low pressure gas-liquid mixture piece-rate system of closing gas production field based on many reservoirs according to claim 4, is characterized in that: the liquid pipe (10) that converges after described separation is communicated with fluid reservoir (11).
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| CN201510135236.0A CN104763403B (en) | 2015-03-26 | 2015-03-26 | A kind of ground high-low pressure gas-liquid mixture piece-rate system that gas production field is closed based on multi-reservoir |
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| CN201510135236.0A CN104763403B (en) | 2015-03-26 | 2015-03-26 | A kind of ground high-low pressure gas-liquid mixture piece-rate system that gas production field is closed based on multi-reservoir |
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| CN104763403B CN104763403B (en) | 2017-07-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106837292A (en) * | 2017-03-24 | 2017-06-13 | 西安长庆科技工程有限责任公司 | A kind of the surface technology processing system and method for many series of strata yard different disposal scales |
| CN109611071A (en) * | 2018-12-29 | 2019-04-12 | 西安长庆科技工程有限责任公司 | A kind of mesolow gas-liquid separation device and method suitable for multi-state |
| CN115492565A (en) * | 2022-09-20 | 2022-12-20 | 中石化石油工程技术服务有限公司 | Gas-liquid separation system for shale gas |
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Inventor after: Liu Mingkun Inventor after: Li Pengjiang Inventor after: Yang Guang Inventor after: Wang Denghai Inventor after: Zheng Xin Inventor after: Liu Yinchun Inventor after: Fan Junlai Inventor after: Hu Tao Inventor after: Qiao Guanghui Inventor after: Li Qiang Inventor before: Liu Mingkun Inventor before: Li Pengjiang Inventor before: Yang Guang Inventor before: Wang Denghai Inventor before: Zheng Xin Inventor before: Liu Yinchun Inventor before: Fan Junlai Inventor before: Hu Tao Inventor before: Qiao Guanghui Inventor before: Li Qiang |
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