CN106894805A - A kind of coal bed gas gas gathering station enters the station separation skid-mounted unit - Google Patents
A kind of coal bed gas gas gathering station enters the station separation skid-mounted unit Download PDFInfo
- Publication number
- CN106894805A CN106894805A CN201710109126.6A CN201710109126A CN106894805A CN 106894805 A CN106894805 A CN 106894805A CN 201710109126 A CN201710109126 A CN 201710109126A CN 106894805 A CN106894805 A CN 106894805A
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- Prior art keywords
- valve
- station
- filter separator
- coal bed
- bed gas
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Classifications
-
- 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
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention belongs to the technical field of coal bed gas industry yard separator,Specifically related to a kind of coal bed gas gas gathering station enters the station separation skid-mounted unit,Including the first air inlet,First enters the station block valve,The inlet valve of filter separator,Filter separator,The outlet valve of filter separator,The outer defeated interface of coal bed gas,First atmospheric valve,Filter separator is vented valve group,Blow-down pipe external world interface,First drain valve sledge and tapping line interface,The bottom of described filter separator is provided with the first filter separator sewage draining exit on the spot,First air inlet is sequentially connected first and enters the station block valve,The inlet valve of filter separator,Filter separator,The outer defeated interface of the outlet valve and coal bed gas of filter separator,Therefore,The coal bed gas gas gathering station enter the station separation skid-mounted unit overcome in the prior art cbm development routine the construction mode cycle it is long,Floor space is big,Invest problem high,Floor space is small,Compact conformation,The characteristics of perfect in shape and function,With blocking,Emptying,Separate,The functions such as blowdown.
Description
Technical field
The invention belongs to the technical field of coal bed gas industry yard separator, and in particular to a kind of coal bed gas gas gathering station enters
Stand and separate skid-mounted unit.
Background technology
Coal bed gas is a kind of high-quality, efficient, cleaning new energy and industrial chemicals.Root is it was predicted that global coal bed gas distant view
Stock number 260 × 1012m3, China is 36.8 × 1012m3, occupy the second in the world.
In recent years, methane output was raised year by year, and China's coal gas industry is in steady Rapid development stage.China
Coal bed gas " 12 " development plan, two coal bed methane industrial bases of focus development Qinshui basin and Eastern Margin of Ordos Basin
Ground.Qinshui basin formed annual capacity 130 × 10 by 20158m3, yield 104 × 108m3。
Coalbed gas of Qinshui basin, by the tackling of key scientific and technical problems of 10 years, optimization innovation, formd maturation from development ＆ construction in 2006
Coal bed gas surface gathering and transferring technique, but coal bed gas field is located at mountain area densely-wooded area mostly, expropriation of land is difficult, using conventional construction mode
Cycle is long, floor space is big, and investment is high, it is therefore desirable to integrated innovation is carried out in terms of sledge dressization, is just adapted under coal bed gas field
The development need of one step.
Can be completed in factory-assembled using skid-mounted unit, production time can be shortened, make coal bed gas well aerogenesis as early as possible, played
Supply is acted on.Skid-mounted unit install compact, occupation of land is small, can Economization on land occupancy.Sledge dressization equipment is convenient to carry, can be mutual between yard
Mutually allocate, save equipment investment.
Therefore, coal bed gas gas field each functional module of yard is carried out into sledge dressization, is to realize coal bed gas Large scale construction, quickly
Go into operation, reduce the important means and Innovation Construction mode of construction investment, domestic cbm development will be played a positive role.
The content of the invention
The purpose of the present invention is to overcome cbm development routine in the prior art the construction mode cycle is long, floor space big,
Invest problem high.
Therefore, being entered the station separation skid-mounted unit, including the first air inlet, first the invention provides a kind of coal bed gas gas gathering station
The outer defeated interface of block valve, the inlet valve of filter separator, filter separator, the outlet valve of filter separator, the coal bed gas of entering the station, the
One atmospheric valve, filter separator emptying valve group, blow-down pipe external world interface, the first drain valve sledge and tapping line interface, it is described
The bottom of filter separator be provided with the first filter separator sewage draining exit on the spot, the first air inlet is sequentially connected first and enters the station and blocks
The outer defeated interface of valve, the inlet valve of filter separator, filter separator, the outlet valve of filter separator and coal bed gas, the first emptying
Valve one end connects the outlet of the first air inlet, other end connection blow-down pipe, the connection filtering of filter separator emptying valve group one end
Separator, other end connection blow-down pipe, the first drain valve sledge is connected with the bottom of filter separator, blow-down pipe connection emptying
Pipeline external world interface.
The described coal bed gas gas gathering station separation skid-mounted unit that enters the station also includes that the second air inlet, second are entered the station block valve, the
Two atmospheric valves, the second filter separator sewage draining exit, the second drain valve sledge on the spot, the second air inlet are sequentially connected second and enter the station and blocks
The import of the inlet valve of valve and filter separator, second atmospheric valve one end connects the outlet of the second air inlet, and other end connection is put
Blank pipe line, the second filter separator on the spot sewage draining exit located at the bottom of filter separator, the second drain valve sledge and filter separator
Bottom connection.
Described coal bed gas gas gathering station enters the station separation skid-mounted unit also including separator by-passing valve, separator by-passing valve one end
Block valve is entered the station in connection first and second block valve that enters the station converges the outlet of pipeline, and the other end connection outer defeated interface of coal bed gas enters
Mouthful.
Described the first atmospheric valve, the second atmospheric valve, first enter the station block valve and second block valve that enters the station is control manually
Valve or electrically operated valve.
The first described atmospheric valve and the second atmospheric valve are plug valve.
Described first block valve and second that enters the station enters the station block valve for ball valve.
The first described drain valve sledge and the second drain valve sledge include two-way discharge opeing, are all the way maintenance discharge opeing, Ling Yilu
It is normal drainage, the normal drainage sets two-way discharge opeing bypass.
Described the first drain valve sledge and the second drain valve sledge is horizontal opens hydrophobic valve group sledge soon.
Beneficial effects of the present invention：This coal bed gas gas gathering station that the present invention is provided enters the station separation skid-mounted unit, including the
One air inlet, first are entered the station block valve, the inlet valve of filter separator, filter separator, the outlet valve of filter separator, coal seam
The outer defeated interface of gas, the first atmospheric valve, filter separator emptying valve group, blow-down pipe external world interface, the first drain valve sledge and discharge opeing
Pipeline interface, the bottom of described filter separator is provided with the first filter separator sewage draining exit on the spot, and the first air inlet connects successively
Connect the first enter the station block valve, the inlet valve of filter separator, filter separator, the outlet valve of filter separator and coal bed gas outer defeated
Interface, first atmospheric valve one end connects the outlet of the first air inlet, other end connection blow-down pipe, filter separator emptying valve group
One end connects filter separator, and other end connection blow-down pipe, the first drain valve sledge is connected with the bottom of filter separator, is vented
Pipeline connection blow-down pipe external world interface, therefore, the coal bed gas gas gathering station enters the station, and separation skid-mounted unit floor space is small, and structure is tight
Gather, the characteristics of perfect in shape and function, with blocking, be vented, separate, the function such as blowdown.
Brief description of the drawings
The present invention is described in further details below with reference to accompanying drawing.
Tu1Shi coal bed gas gas gathering station enters the station and separates skid-mounted unit structural representation.
Description of reference numerals：1. the first air inlet, 2. first enter the station block valve, 3. the second air inlet, 4. second enter the station cut
The outer defeated interface of disconnected valve, the 5. inlet valve of filter separator, 6. filter separator, the 7. outlet valve of filter separator, 8. coal bed gas,
9. separator by-passing valve, 10. the first atmospheric valve, 11. second atmospheric valves, 12. filter separators emptying valve group, 13. blow-down pipes
Extraneous interface, 14. first filter separators sewage draining exit, 15. second filter separators sewage draining exit, 16. first hydrophobic on the spot on the spot
Valve sledge, 17. second drain valve sledges, 18. tapping line interfaces, 19. blow-down pipes.
Specific embodiment
Embodiment 1：
The separation skid-mounted unit as shown in figure 1, a kind of coal bed gas gas gathering station enters the station, it is characterised in that：Including the first air inlet
1st, the first inlet valve 5, outlet valve 7, coal bed gas of filter separator 6, filter separator for entering the station block valve 2, filter separator
Outer defeated interface 8, the first atmospheric valve 10, filter separator emptying valve group 12, blow-down pipe external world interface 13, the first drain valve sledge 16
With tapping line interface 18, the bottom of described filter separator 6 is provided with the first filter separator sewage draining exit 14 on the spot, and first enters
Gas port 1 is sequentially connected the first inlet valve 5, outlet of filter separator 6, filter separator for entering the station block valve 2, filter separator
Valve 7 and the outer defeated interface 8 of coal bed gas, one end of the first atmospheric valve 10 connect the outlet of the first air inlet 1, other end connection blow-down pipe
19, filter separator emptying valve group 12 one end connection filter separator 6, other end connection blow-down pipe 19, the first drain valve sledge
16 are connected with the bottom of filter separator 6, the connection blow-down pipe of blow-down pipe 19 external world interface 13.
Outer coal bed gas main of standing carrys out gas and is accessed in sledge through first intake interface 1 of skid-mounted device, is entered the station block valve through first
2nd, filter separator 6 is entered after the inlet valve 5 of filter separator, by isolating fine droplet and coal dust in filter separator
Afterwards, it is separated by filtration the outer defeated interface 8 of the outlet valve 7 and coal bed gas of device and transports to down stream train in station, first enters the station set before block valve 2
There is the first atmospheric valve 10, block operating mode coal bed gas main coal bed gas in completion station is vented manually, and filter separator 6 is provided with filtering point
Valve group (gate valve and choke stop evacuation valve) 12, the connection blow-down pipe of blow-down pipe 19 external world interface 13 are vented from device；Filtering point
The first filter separator sewage draining exit 14 on the spot are provided with from device 6, are responsible for the blowdown on the spot that separator overhauls operating mode, normal production status
Discharge opeing realizes automatic continuous discharge opeing, and transport to liquid header in station by tapping line interface 18 through the first drain valve sledge 16.
Coal bed gas gas gathering station of the invention enters the station separation skid-mounted unit, meet blocking, being vented after coal bed gas main enters the station,
The function with automatic drain is separated, device is sledge dressization, packaged type, and device uses prefabrication, after the completion of being prefabricated in the factory,
Coal bed gas yard is transported to, after being connected with station gut line through flange, you can come into operation, skid-mounted unit install compact, occupation of land is small, can
Economization on land takes.Sledge dressization equipment is convenient to carry, and can be allocated mutually between yard, saves equipment investment.
Embodiment 2：
As shown in figure 1, on the basis of embodiment 1, the described coal bed gas gas gathering station separation skid-mounted unit that enters the station also includes
Second air inlet 3, second enter the station that sewage draining exit 15, second is hydrophobic on the spot for block valve 4, the second atmospheric valve 11, the second filter separator
Valve sledge 17, the second air inlet 3 be sequentially connected second enter the station block valve 4 and filter separator inlet valve 5 import, second emptying
The one end of valve 11 connects the outlet of the second air inlet 3, other end connection blow-down pipe 19, the second filter separator sewage draining exit 15 on the spot
Located at the bottom of filter separator 6, the second drain valve sledge 17 is connected with the bottom of filter separator 6.
Outer coal bed gas main of standing come gas through skid-mounted device the second air inlet 3 access sledge in, through second enter the station block valve 4,
Enter filter separator 6 after the inlet valve 5 of filter separator, by isolating fine droplet and coal dust in filter separator
Afterwards, it is separated by filtration the outer defeated interface 8 of the outlet valve 7 and coal bed gas of device and transports to down stream train in station, second enters the station set before block valve 4
There is the second atmospheric valve 11, block operating mode coal bed gas main coal bed gas in completion station is vented manually, and filter separator 6 is provided with the second mistake
Separator sewage draining exit 15 on the spot are filtered, is responsible for the blowdown on the spot that separator overhauls operating mode, normal production status discharge opeing is hydrophobic through second
Valve sledge 17, realizes automatic continuous discharge opeing, and transports to liquid header in station by tapping line interface 18, and embodiment 2 is coal bed gas
Gas gathering station enters the station and separates the Article 2 operating path of skid-mounted unit, can be carried out simultaneously with the route described in embodiment 1 simultaneously, also may be used
Realize that coal bed gas is conveyed in the operating mode such as separator maintenance or failure as alternate route, improve the security of device and use effect
Rate.
Embodiment 3：
As shown in figure 1, on the basis of embodiment 1-2, the described coal bed gas gas gathering station separation skid-mounted unit that enters the station also is wrapped
Include separator by-passing valve 9, block valve 2 is entered the station in the one end of separator by-passing valve 9 connection first and second block valve 4 that enters the station converges pipeline
Outlet, the import of the outer defeated interface 8 of other end connection coal bed gas.Filter separator is provided with bypass flow, can be overhauled in separator
Or the operating mode such as failure realizes that coal bed gas is conveyed.
Described the first atmospheric valve 10, the second atmospheric valve 11, first block valve 2 and second that enters the station enter the station block valve 4 for hand
Dynamic control valve or electrically operated valve；Described the first atmospheric valve 10 and the second atmospheric valve 11 is plug valve；Described first enters the station
Block valve 2 and second enters the station block valve 4 for ball valve；First atmospheric valve 10 and the second atmospheric valve 11 select plug valve, and first enters the station
Block valve 2 and second block valve 4 that enters the station select ball valve, open flexible.
The first described drain valve sledge 16 and the second drain valve sledge 17 include two-way discharge opeing, are all the way maintenance discharge opeing, separately
It is all the way normal drainage, the normal drainage sets two-way discharge opeing bypass；Described the first drain valve sledge 16 and the second drain valve sledge
17 are and horizontal open hydrophobic valve group sledge soon.Separator blowdown realizes automatic continuous discharge opeing using drain valve, and drainage system sets inspection
Discharge opeing control valve and normal drainage control valve two-way are repaiied, normal drainage operating mode sets two-way discharge opeing bypass (the using and the reserved), drain valve
It is horizontal type structure quick-opening structure, is easy to unpick and wash and overhauls.
Operation principle of the invention is：
Outer coal bed gas main of standing carrys out gas and is accessed through the intake interface (the first air inlet 1 and the second air inlet 3) of skid-mounted device
In sledge, through block valve (first enter the station block valve 2 and second enter the station block valve 4), filtering is entered after the inlet valve 5 of filter separator
Separator 6, in separator after isolating fine droplet and coal dust, is separated by filtration outside the outlet valve 7 of device and coal bed gas
Defeated interface 8 transports to down stream train in station, and filter separator 6 is provided with separator by-passing valve 9, completes filter separator maintenance operating mode；
Enters the station the manual drain cock valve (the first atmospheric valve 10 and the second atmospheric valve 11) that be provided with before block valve, completes to block operating mode coal in station
Layer gas main coal bed gas is vented manually, and filter separator 6 is provided with filter separator emptying valve group, and (gate valve and throttle check are vented
Valve) 12, blow-down pipe 19 is connected and blow-down pipe external world interface 13；Filter separator is respectively equipped with leakage fluid dram (the first mistake on the spot
The filter separator filter separator of sewage draining exit 14 and second sewage draining exit 15 on the spot on the spot), it is responsible for the row on the spot that separator overhauls operating mode
Dirt, normal production status discharge opeing realizes automatically continuously row through drain valve sledge (the first drain valve sledge 16 and the second drain valve sledge 17)
Liquid, and connected drainage pipeline interface 18 transports to liquid header in station.
It is exemplified as above be only to of the invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (8)
1. a kind of coal bed gas gas gathering station enters the station separation skid-mounted unit, it is characterised in that：Entered the station including the first air inlet (1), first
Outside block valve (2), the inlet valve (5) of filter separator, filter separator (6), the outlet valve (7) of filter separator, coal bed gas
Defeated interface (8), the first atmospheric valve (10), filter separator are vented valve group (12), blow-down pipe external world's interface (13), first hydrophobic
Valve sledge (16) and tapping line interface (18), the bottom of described filter separator (6) are provided with the first filter separator and arrange on the spot
Dirty mouth (14), the first air inlet (1) be sequentially connected first enter the station block valve (2), the inlet valve (5) of filter separator, filtering point
From the outer defeated interface (8) of device (6), the outlet valve (7) of filter separator and coal bed gas, the first atmospheric valve (10) one end connection first is entered
The outlet of gas port (1), the other end connects blow-down pipe (19), filter separator emptying valve group (12) one end connection filter separator
(6), the other end connects blow-down pipe (19), and the first drain valve sledge (16) is connected with the bottom of filter separator (6), blow-down pipe
(19) connection blow-down pipe external world's interface (13).
2. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：Described coal bed gas collection
The gas station separation skid-mounted unit that enters the station also includes that the second air inlet (3), second are entered the station block valve (4), the second atmospheric valve (11), second
Filter separator sewage draining exit (15), the second drain valve sledge (17) on the spot, the second air inlet (3) are sequentially connected second and enter the station block valve
(4) and filter separator inlet valve (5) import, the second atmospheric valve (11) one end connect the second air inlet (3) outlet, separately
One end connect blow-down pipe (19), the second filter separator on the spot sewage draining exit (15) located at the bottom of filter separator (6), second
Drain valve sledge (17) is connected with the bottom of filter separator (6).
3. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：Described coal bed gas collection
Separation skid-mounted unit is entered the station also including separator by-passing valve (9) in gas station, and separator by-passing valve (9) one end connection first is entered the station and blocked
Valve (2) and second block valve (4) that enters the station converge the outlet of pipeline, the import of the outer defeated interface (8) of other end connection coal bed gas.
4. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：The first described emptying
Valve (10), the second atmospheric valve (11), first enter the station block valve (2) and second enter the station block valve (4) for manual control valve or
Electrically operated valve.
5. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：The first described emptying
Valve (10) and the second atmospheric valve (11) are plug valve.
6. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：Described first enters the station cuts
Disconnected valve (2) and second block valve (4) that enters the station are ball valve.
7. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：Described first is hydrophobic
Valve sledge (16) and the second drain valve sledge (17) include two-way discharge opeing, are all the way maintenance discharge opeing, and another road is normal drainage, described
Normal drainage sets two-way discharge opeing bypass.
8. coal bed gas gas gathering station as claimed in claim 1 enters the station separation skid-mounted unit, it is characterised in that：Described first is hydrophobic
Valve sledge (16) and the second drain valve sledge (17) are horizontal opens hydrophobic valve group sledge soon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109126.6A CN106894805A (en) | 2017-02-27 | 2017-02-27 | A kind of coal bed gas gas gathering station enters the station separation skid-mounted unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109126.6A CN106894805A (en) | 2017-02-27 | 2017-02-27 | A kind of coal bed gas gas gathering station enters the station separation skid-mounted unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894805A true CN106894805A (en) | 2017-06-27 |
Family
ID=59184327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710109126.6A Pending CN106894805A (en) | 2017-02-27 | 2017-02-27 | A kind of coal bed gas gas gathering station enters the station separation skid-mounted unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106894805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850705A (en) * | 2023-08-31 | 2023-10-10 | 濮阳兴泰金属结构制品有限公司 | Gravity separator sled dress device convenient to maintenance inspection |
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| CN103968249A (en) * | 2014-02-25 | 2014-08-06 | 陕西航天德林机械制造有限公司 | Natural gas collection integrated device |
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| CN204647862U (en) * | 2015-04-27 | 2015-09-16 | 西安长庆科技工程有限责任公司 | A kind of automatic draining device of skid-mounted emptying liquid-separation |
| CN104929610A (en) * | 2015-06-30 | 2015-09-23 | 西安长庆科技工程有限责任公司 | Natural gas production and separation skid-mounted unit based on large cluster well group |
| CN105065908A (en) * | 2015-07-29 | 2015-11-18 | 西安长庆科技工程有限责任公司 | Sulfur-contained natural gas collection integrated device |
| CN206554910U (en) * | 2017-02-27 | 2017-10-13 | 西安长庆科技工程有限责任公司 | A kind of gas gathering station enters the station separation skid-mounted unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211842A (en) * | 1992-01-07 | 1993-05-18 | Conoco Inc. | Three-phase well test apparatus using pumped recirculation to maintain homogenous flow |
| CN202746937U (en) * | 2012-07-04 | 2013-02-20 | 中国石油天然气股份有限公司 | Skid-mounted natural gas gathering and transportation device |
| CN103527927A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Skid-mounted natural gas gathering and transportation device |
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| CN104329053A (en) * | 2014-11-12 | 2015-02-04 | 中国石油天然气股份有限公司 | Integrated device for oil collection, ball collection and dosing |
| CN204312995U (en) * | 2014-11-14 | 2015-05-06 | 中国石油天然气股份有限公司 | An Unattended Gas Gathering Station Separator Sewage System |
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| CN105065908A (en) * | 2015-07-29 | 2015-11-18 | 西安长庆科技工程有限责任公司 | Sulfur-contained natural gas collection integrated device |
| CN206554910U (en) * | 2017-02-27 | 2017-10-13 | 西安长庆科技工程有限责任公司 | A kind of gas gathering station enters the station separation skid-mounted unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850705A (en) * | 2023-08-31 | 2023-10-10 | 濮阳兴泰金属结构制品有限公司 | Gravity separator sled dress device convenient to maintenance inspection |
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Application publication date: 20170627 |