CN104976512A - Skid-mounted device based on large cluster well group natural gas throttling and measurement - Google Patents
Skid-mounted device based on large cluster well group natural gas throttling and measurement Download PDFInfo
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- CN104976512A CN104976512A CN201510402857.0A CN201510402857A CN104976512A CN 104976512 A CN104976512 A CN 104976512A CN 201510402857 A CN201510402857 A CN 201510402857A CN 104976512 A CN104976512 A CN 104976512A
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Abstract
The invention provides a skid-mounted device based on large cluster well group natural gas throttling and measurement. The skid-mounted device comprises a plurality of gas conveying pipes and production separator branches of the corresponding number. One end of each gas conveying pipe is communicated with a first connector, and the other ends of the gas conveying pipes are communicated with a measurement separator header. A throttling valve, a flowmeter, a first ball valve, a horizontal check valve and a second ball valve are sequentially arranged between each first connector and the measurement separator header. The outlet end of the measurement separator header is a measurement separator connector. The skid-mounted device based on large cluster well group natural gas throttling and measurement solves the problems that as gas wells of a large cluster well are dispersed, wellhead independent throttling and measurement are not convenient to manage and workloads are large, meets the requirements of measurement and separation of different gas wells, greatly relieves the labor intensity of workers, and reduces the cost and land occupation.
Description
Technical field
The invention belongs to gathering-transferring technology field, gas field, be specifically related to a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering.
Background technique
Along with the development of national economy, country is increasing to the demand of the energy, and as the rock gas of clean energy resource, development speed is very fast.As the surface construction part of the construction of natural gas fields, construction scale is large, and construction station quantity is many.
Reservoir gas well tools has the features such as pressure is high, output is large, production rate-maintenance capability is strong, and for making full use of well head pressure, gas well mainly adopts ripe high-pressure gas collection technique to produce.
Large cluster well is popularized in an all-round way in Gas field construction because of many advantages such as its ground area are little, management point is few, construction cost is low.Namely large cluster well builds 16 ~ 20 implication wells in 1 well site, and well group pressure height in early stage 6MPa ~ 10MPa, output is high by (34 × 10
4m
3~ 112 × 10
4m
3).Because well head pressure is high downstream gas gathering station or treatment plant's pressure low, well head needs throttling.Simultaneously for the ease of monitoring gas well liquid loading, need to measure gas well.Individual well throttling, the metering of current employing routine have following problem:
1, due to large cluster well administrative gas well distribution dispersion, the independent throttling of well head, metering are not easy to management, and workload is large.
2, conventional moisture error in dipping is comparatively large, and precision is not high;
3, part gas well needs to enter metering separator, measures the rock gas tolerance of gas well output gas and liquid measure; Part gas well directly enters production separator, carries out gas-liquid separation, and as adopted conventional design, well head arranges separately Vavle switching flow process, and labor strength can be caused large;
4, floor space is large, and investment cost is high.
Summary of the invention
The object of this invention is to provide a kind ofly save cost, reduce take up an area, the throttling of the sledge of Accelerating The Construction progress dress, metering gas-collecting device.
For this reason, the invention provides a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering, comprise the production separator branch road of branched gas transmission line and respective amount, often prop up gas transmission line one end to be communicated with first interface, the other end is communicated with metering separator header, be provided with throttle valve, flowmeter, the first ball valve, horizontal safety check, the second ball valve between described first interface and metering separator header successively, described metering separator header outlet end is metering separator interface;
Often prop up between the first ball valve of gas transmission line and horizontal safety check and be communicated with one end of production separator branch road, this production separator branch road the other end is communicated with production separator header, described production separator branch road is provided with production separation zone ball valve, and described branched gas transmission line, metering separator header, production separator branch road are all located in skid.
The outlet end of described throttle valve is communicated with the natural gas vent branch road in parallel with gas transmission line, this natural gas vent branch road the other end is communicated with the first emptying header, described natural gas vent branch road is provided with safety valve, and described first emptying header outlet end is provided with drain.
Also comprise blow-down pipe, often prop up between the flowmeter of gas transmission line and the first ball valve and be communicated with one end of blow-down pipe, this blow-down pipe the other end is communicated with the second emptying header, and described blow-down pipe is provided with manual emptying ball valve and choke stop evacuation valve.
Described throttle valve is Angle Throttle Valves.
Described metering separator header outlet end is provided with metering separator interface and outer defeated interface side by side.
The invention has the beneficial effects as follows: the skid-mounted device of this great Cong well group rock gas throttling provided by the invention and metering, overcome due to large cluster well administrative gas well distribution dispersion, the independent throttling of well head, metering are not easy to management, the problem that workload is large, simultaneously, meet the metering of different gas well, the requirement that is separated greatly reduces the labor intensity of workman, save cost, reduce and take up an area.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, first interface; 2, throttle valve; 3, safety valve; 4, flowmeter; 5, the first emptying header; 6, manual emptying ball valve; 7, choke stop evacuation valve; 8, the first ball valve; 9, production separation zone ball valve; 10, production separator header; 11, horizontal safety check; 12, the second ball valve; 13, drain; 14, manual drain; 15, production separator interface; 16, metering separator interface; 17, outer defeated interface; 18, metering separator header; 19, the second emptying header; 20, skid; 21, gas transmission line; 22, production separator branch road; 23, natural gas vent branch road; 24, blow-down pipe.
Embodiment
Embodiment 1:
Present embodiments provide a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering, comprise the production separator branch road 22 of branched gas transmission line 21 and respective amount, often prop up gas transmission line 21 one end to be communicated with first interface 1, the other end is communicated with metering separator header 18, be provided with throttle valve 2, flowmeter 4, first ball valve 8, horizontal safety check 11, second ball valve 12 between described first interface 1 and metering separator header 18 successively, described metering separator header 18 outlet end is metering separator interface 16;
Often prop up between the first ball valve 8 of gas transmission line 21 and horizontal safety check 11 and be communicated with one end of production separator branch road 22, this production separator branch road 22 the other end is communicated with production separator header 10, described production separator branch road 22 is provided with production separation zone ball valve 9, described production separator header 10 outlet end is provided with production separator interface 15, and described branched gas transmission line 21, metering separator header 18, production separator branch road 22 are all located in skid 20.
As shown in Figure 1, high-pressure natural gas carrys out gas by flow line and enters gas transmission line 21, first be connected with throttle valve 2 through first interface 1, rock gas is by becoming middle pressure from high pressure after throttle valve 2 throttling, after being measured by flowmeter 4, through the first ball valve 8, now select different branch roads according to the different demands of rock gas:
Open production separation zone ball valve 9, rock gas enters production separator branch road 22, after production separator header 10 converges, transport to production separator place, downstream by production separator interface 15.
Open horizontal safety check 11 and the second ball valve 12, rock gas enters metering separator header 18 and collects, and transports to metering separator by metering separator interface 16.
Embodiment 2:
On the basis of embodiment 1, the outlet end of throttle valve 2 is provided with the natural gas vent branch road 23 in parallel with gas transmission line 21, described natural gas vent branch road 23 is provided with safety valve 3, this natural gas vent branch road 23 one end is communicated with gas transmission line 21, the other end is communicated with the first emptying header 5, and described first emptying header 5 outlet end is provided with drain 13.
As shown in Figure 1, in the present embodiment, when throttle valve 2 breaks down, cause downstream pressure too high, safety valve 3 is opened, and through natural gas vent branch road 23 emptying, after emptying, rock gas enters the first emptying header 5 and collects, finally by drain 13 emptying.
Embodiment 3:
On the basis of embodiment 1, also comprise blow-down pipe 24, often prop up between the flowmeter 4 of gas transmission line and the first ball valve 8 and be communicated with one end of blow-down pipe 24, this blow-down pipe 24 the other end is communicated with the second emptying header 19, described blow-down pipe 24 is provided with manual emptying ball valve 6 and choke stop evacuation valve 7, and described second emptying header 19 outlet end is manual drain 14.
As shown in Figure 1, in the present embodiment, when flowmeter 4 break down need change time, close the first ball valve 8, open manual emptying ball valve 6, choke stop evacuation valve 7 carries out emptying.After emptying, rock gas enters after the second emptying header 19 collects, manually drain 14 emptying.
Embodiment 4:
On the basis of embodiment 1, metering separator header 18 outlet end is provided with metering separator interface 16 and outer defeated interface 17 side by side.
As shown in Figure 1, in the present embodiment, when rock gas is dry gas, when not needing separate measurement, rock gas transports to downstream by outer defeated interface 17.In the present embodiment, throttle valve 2 is Angle Throttle Valves, has two branch roads after Angle Throttle Valves throttling, when normally running, after natural gas via throttling, after flowmeter 4 measures, transports to downstream; After throttle valve 2 lost efficacy, after pressure exceedes the level pressure of safety valve 3, safety valve 3 was opened, and virgin gas starts emptying, accessed blowdown system by the first emptying header 5, drain 13.
The skid-mounted device of this great Cong well group rock gas throttling provided by the invention and metering, overcome due to large cluster well administrative gas well distribution dispersion, the independent throttling of well head, metering are not easy to management, the problem that workload is large, simultaneously, meet the metering of different gas well, the requirement that is separated greatly reduces the labor intensity of workman, save cost, reduce and take up an area.
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. the skid-mounted device based on the rock gas throttling of great Cong well group and metering, it is characterized in that: the production separator branch road (22) comprising branched gas transmission line (21) and respective amount, often prop up gas transmission line (21) one end to be communicated with first interface (1), the other end is communicated with metering separator header (18), throttle valve (2) is provided with successively between described first interface (1) and metering separator header (18), flowmeter (4), first ball valve (8), horizontal safety check (11), second ball valve (12), described metering separator header (18) outlet end is metering separator interface (16),
Often prop up between first ball valve (8) of gas transmission line (21) and horizontal safety check (11) and be communicated with one end of production separator branch road (22), this production separator branch road (22) the other end is communicated with production separator header (10), described production separator branch road (22) is provided with production separation zone ball valve (9), and described branched gas transmission line (21), metering separator header (18), production separator branch road (22) are all located in skid (20).
2. a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering according to claim 1, it is characterized in that: the outlet end of described throttle valve (2) is communicated with the natural gas vent branch road (23) in parallel with gas transmission line (21), this natural gas vent branch road (23) the other end is communicated with the first emptying header (5), described natural gas vent branch road (23) is provided with safety valve (3), and described first emptying header (5) outlet end is provided with drain (13).
3. a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering according to claim 1, it is characterized in that: also comprise blow-down pipe (24), often prop up between the flowmeter (4) of gas transmission line (21) and the first ball valve (8) and be communicated with one end of blow-down pipe (24), this blow-down pipe (24) the other end is communicated with the second emptying header (19), and described blow-down pipe (24) is provided with manual emptying ball valve (6) and choke stop evacuation valve (7).
4. a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering according to claim 1 and 2, is characterized in that: described throttle valve (2) is Angle Throttle Valves.
5. a kind of skid-mounted device based on the rock gas throttling of great Cong well group and metering according to claim 1, is characterized in that: described metering separator header (18) outlet end is provided with metering separator interface (16) and outer defeated interface (17) side by side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402857.0A CN104976512B (en) | 2015-07-10 | 2015-07-10 | A kind of skid-mounted device for being throttled and being measured based on great Cong well groups natural gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402857.0A CN104976512B (en) | 2015-07-10 | 2015-07-10 | A kind of skid-mounted device for being throttled and being measured based on great Cong well groups natural gas |
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| CN104976512A true CN104976512A (en) | 2015-10-14 |
| CN104976512B CN104976512B (en) | 2017-10-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130954A (en) * | 2017-04-29 | 2017-09-05 | 西安长庆科技工程有限责任公司 | A kind of two-phase precipitation skid-mounted unit |
| CN108007534A (en) * | 2017-12-30 | 2018-05-08 | 西安长庆科技工程有限责任公司 | A kind of natural gas big flow flows verification system in fact |
| CN108105591A (en) * | 2017-12-28 | 2018-06-01 | 陈崇勇 | On-off system |
| CN112443756A (en) * | 2019-09-03 | 2021-03-05 | 中国石油化工股份有限公司 | Integrated system for natural gas |
| CN113622871A (en) * | 2020-05-07 | 2021-11-09 | 中国石油化工股份有限公司 | Throttling open flow system and use method |
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| CN203549406U (en) * | 2013-11-20 | 2014-04-16 | 重庆市正华钻采设备有限公司 | Fuel gas pressure regulating metering skid-mounted device for petroleum and gas |
| CN203628280U (en) * | 2013-11-08 | 2014-06-04 | 中国石油天然气股份有限公司 | Natural gas emptying devices |
| CN104100255A (en) * | 2013-04-12 | 2014-10-15 | 中国石油天然气股份有限公司 | Special skid-mounted multi-well automatic well selection metering device for coal bed gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107130954A (en) * | 2017-04-29 | 2017-09-05 | 西安长庆科技工程有限责任公司 | A kind of two-phase precipitation skid-mounted unit |
| CN107130954B (en) * | 2017-04-29 | 2022-12-20 | 西安长庆科技工程有限责任公司 | Two-phase separation measurement skid-mounted device |
| CN108105591A (en) * | 2017-12-28 | 2018-06-01 | 陈崇勇 | On-off system |
| CN108007534A (en) * | 2017-12-30 | 2018-05-08 | 西安长庆科技工程有限责任公司 | A kind of natural gas big flow flows verification system in fact |
| CN108007534B (en) * | 2017-12-30 | 2023-12-08 | 西安长庆科技工程有限责任公司 | Natural gas high-flow real-flow verification system |
| CN112443756A (en) * | 2019-09-03 | 2021-03-05 | 中国石油化工股份有限公司 | Integrated system for natural gas |
| CN112443756B (en) * | 2019-09-03 | 2022-07-22 | 中国石油化工股份有限公司 | Integrated system for natural gas |
| CN113622871A (en) * | 2020-05-07 | 2021-11-09 | 中国石油化工股份有限公司 | Throttling open flow system and use method |
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| CN104976512B (en) | 2017-10-17 |
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