CN104358547B - Gas-liquid separation type sleeve gas recovery device - Google Patents
Gas-liquid separation type sleeve gas recovery device Download PDFInfo
- Publication number
- CN104358547B CN104358547B CN201410633808.3A CN201410633808A CN104358547B CN 104358547 B CN104358547 B CN 104358547B CN 201410633808 A CN201410633808 A CN 201410633808A CN 104358547 B CN104358547 B CN 104358547B
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- valve
- pressure
- gas
- piston
- support
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- 239000007788 liquid Substances 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010779 crude oil Substances 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a gas-liquid separation type casing gas recovery device, which comprises a constant pressure vent valve and a one-way valve, wherein one side of the constant pressure vent valve is provided with a gas inlet, the gas inlet is connected with a gas inlet pipeline, the other side of the constant pressure vent valve is provided with a gas outlet, the gas outlet is connected with a quick connector, the other end of the quick connector is connected with a three-way pipe, the other two ends of the three-way pipe are respectively connected with a production process pipeline, and the one-way valve is arranged at the intersection of the three-way pipe; the constant pressure air release valve comprises a valve body, a piston is arranged in the valve body, a valve support with a valve ball at the upper end is connected below the piston, and a valve seat is sleeved outside the valve support; the air inlet hole is arranged on one side of the valve seat and communicated with the valve support provided with the valve ball, and the exhaust hole is arranged on the other side of the valve body and is positioned above the contact part of the piston and the valve support. The check valve can prevent the crude oil from flowing to the constant-pressure air release valve by means of heat tracing of the crude oil on site, so that gas-liquid separation is realized, and the problem of freezing and blocking of the constant-pressure valve in winter is solved.
Description
Technical field
The invention belongs to technical field of oil production engineering, and in particular to a kind of gas-liquid separation type sleeve gas recovering device.
Background technology
Well site as Petroleum Industry production upstream link production unit foremost, in oil field, point is more and dispersion.Due to receiving
Technological means is restricted, and remote well site wellhead back pressure is high, need to set heating furnace in well site, and its fuel is wellhead casing pipe associated gas, is
Ensure wellsite heater burning and blow-down pipe not by condensate frozen block, at present, oil field at home casing gas recovery process is mainly adopted
Ground recovery technology is used, mainly well head constant pressure valve gas collection mixes defeated.Constant pressure valve absorbs heat when gas discharges, when in production procedure
Crude oil back pressure is higher than constant pressure valve pressure at expulsion, and crude oil flows back in constant pressure valve, causes valve element frozen block and cannot use.
The content of the invention
It is an object of the invention to provide a kind of gas-liquid separation type sleeve gas recovering device, asked with the frozen block for solving valve element
Topic, reaches the purpose of complete recovery of casing gas.
Therefore, the invention provides a kind of gas-liquid separation type sleeve gas recovering device, including valve discharging gas under certain pressure, check valve,
The valve discharging gas under certain pressure side is provided with air admission hole, and the air admission hole is connected with admission line, and the valve discharging gas under certain pressure opposite side is provided with
Steam vent, the steam vent is connected with snap joint, and the other end of snap joint is connected with a three-way pipe, described three-way pipe it is another
Outer two ends are connected to production procedure pipeline, and described check valve is arranged on the intersection in three-way pipe；
The valve discharging gas under certain pressure includes valve body, and piston is provided with the valve body, upper end is connected with piston valve ball is housed
Valve support, valve seat is set with outside valve support；
The air admission hole is communicated located at the side of valve seat with the valve support equipped with valve ball, and the steam vent is another located at valve body
Side, the steam vent is located at the top that piston is in contact with valve support.
The valve discharging gas under certain pressure also includes the pressure duty chamber above valve body, the scale outside pressure duty chamber
Set, the pressure regulation cap above pressure duty chamber, the push rod between pressure duty chamber and pressure regulation cap；
The pressure duty chamber is fixedly connected with scale set, and the pressure regulation cap is slidably connected with scale set, and pressure regulation cap passes through
Scale is bolted to put；
Level pressure spring is provided with the pressure duty chamber, level pressure spring upper end is connected under the push rod by spring base
End, level pressure lower spring end is connected with piston, and the upper end of the push rod is connected with pressure regulation cap upper end.
The piston is sleeved on upper end by vulcanizing sealing gasket to be had in the valve support of valve ball.
The valve support is connected by screw thread with valve seat.
The scale set is sleeved on outside pressure duty chamber by O-ring seal.
The beneficial effects of the invention are as follows：This gas-liquid separation type sleeve gas recovering device that the present invention is provided, level pressure air-bleed
By admission line and sleeve pipe connection, check valve accesses production procedure to valve, valve discharging gas under certain pressure not with crude oil directly contact.Check valve
By the heat heat tracing of live crude oil, and crude oil can be prevented from flowing to valve discharging gas under certain pressure, it is achieved thereby that gas-liquid separation, and then completely
Heat absorption and winter constant pressure valve frozen block when solving the problems, such as that gas discharges.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of valve discharging gas under certain pressure.
In figure：1st, valve discharging gas under certain pressure；2nd, admission line；3rd, quick connector；4th, check valve；5th, production procedure pipeline；6th, three
It is logical；7th, pressure duty chamber；8th, push rod；9th, pressure regulation cap；10th, spring base；11st, level pressure spring；12nd, scale set；13rd, O-ring seal；
14th, piston；15th, sealing gasket is vulcanized；16th, valve body；17th, air admission hole；18th, steam vent；19th, valve ball；20th, bolt；21st, valve support；22、
Valve seat.
Specific embodiment
Embodiment 1：
In order to solve the problems, such as the frozen block of valve element, the purpose of complete recovery of casing gas is reached, present embodiments provide one kind such as
Gas-liquid separation type sleeve gas recovering device shown in Fig. 1, including valve discharging gas under certain pressure 1, check valve 4, the side of valve discharging gas under certain pressure 1 is provided with
Air admission hole 17, with admission line 2 by screwed connection, the opposite side of valve discharging gas under certain pressure 1 is provided with steam vent 18 to the air admission hole 17, the row
Stomata 18 is connected with snap joint 3, and the other end of snap joint 3 is connected with a three-way pipe 6, and other the two of described three-way pipe 6
End is connected to production procedure pipeline 5, and described check valve 4 is arranged on the intersection in three-way pipe 6；
Valve discharging gas under certain pressure 1 is as shown in Fig. 2 including valve body 16, the valve body 16 is interior to be provided with piston 14, is connected with piston 14
Valve support 21 of the upper end equipped with valve ball 19, piston 14 is sleeved on upper end by vulcanizing sealing gasket 15 to be had in the valve support 21 of valve ball 19, valve
Valve seat 22 is set with outside support 21, valve support 21 is connected by screw thread with valve seat 22；Air admission hole 17 and is equipped with located at the side of valve seat 22
The valve support 21 of valve ball 19 is communicated, and, located at the opposite side of valve body 16, the steam vent 18 is positioned at piston 14 and valve support for the steam vent 18
21 tops being in contact.
Valve discharging gas under certain pressure 1 also includes the pressure duty chamber 7 located at the top of valve body 16, the scale outside pressure duty chamber 7
Set 12, located at the pressure regulation cap 9 of the top of pressure duty chamber 7, the push rod 8 between pressure duty chamber 7 and pressure regulation cap 9；
Pressure duty chamber 7 is fixedly connected with scale set 12, and scale set 12 is sleeved on pressure duty chamber by O-ring seal 13
The 7 outside pressure regulation caps 9 are slidably connected with scale set 12, and pressure regulation cap 9 is fixed on scale and covers on 12 by bolt 20；
Level pressure spring 11 is provided with pressure duty chamber 7, the upper end of level pressure spring 11 is connected under push rod 8 by spring base 10
End, the lower end of level pressure spring 11 is connected with piston 14, and the upper end of push rod 8 is connected with the upper end of pressure regulation cap 9.
Embodiment 2：
On the basis of embodiment 1, the course of work of the invention is as follows：
As shown in figure 1, gas-liquid separation type sleeve gas recovering device of the invention check valve 4 in actual production process is inserted
It is fixed in production procedure 5, can reach the antifreeze effect of heat tracing.
A pressure value must be set before valve discharging gas under certain pressure 1 works in this gas-liquid separation type sleeve gas recovering device, is loosened first
Bolt 20, slides pressure regulation cap 9, and after pressure regulation cap 9 is slided into the scale that scale covers 14 corresponding pressures, screwing bolts 20 now, are adjusted
Pressure cap 9 acts on the push rod 8 being connected with its top, and pressure is acted on and transmitted by push rod 8 by level pressure spring 11 and level pressure piston 14,
Pressure is directly displayed on scale set 12, while pressure is delivered to valve ball by level pressure piston 14, level pressure spring 11 and spring base 10
On 19, pressure setting is completed.
Valve ball 19 is promoted when gas enters air admission hole 17 and pressure is equal to setting pressure, steam vent 18 is opened, will be covered
Pipe gas is transported to check valve 4 by fast plug 3, and then casing gas are mixed into defeated in production procedure 5, complete recovery of casing gas.
Check valve 4 prevents crude oil from flowing to valve discharging gas under certain pressure 1, it is achieved thereby that gas-liquid separation, solves the problems, such as constant pressure valve winter frozen block.
In sum, this gas-liquid separation type sleeve gas recovering device that the present invention is provided, valve discharging gas under certain pressure 1 passes through air inlet
Pipeline 2 and sleeve pipe connection, check valve 4 access production procedure pipeline 5, valve discharging gas under certain pressure 1 not with crude oil directly contact.Check valve 4
By the heat heat tracing of live crude oil, and crude oil can be prevented from flowing to valve discharging gas under certain pressure 1, it is achieved thereby that gas-liquid separation, and then it is complete
Complete solution is determined when gas discharges and is absorbed heat and winter constant pressure valve frozen block problem.
The part and structure that the present embodiment is not described in detail belong to the well-known components and common structure or conventional hand of the industry
Section, does not describe one by one here.
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 (1)
1. a kind of gas-liquid separation type sleeve gas recovering device, it is characterised in that：Including valve discharging gas under certain pressure（1）, check valve（4）, institute
State valve discharging gas under certain pressure（1）Side is provided with air admission hole（17）, the air admission hole（17）With admission line（2）Connection, the level pressure air-bleed
Valve（1）Opposite side is provided with steam vent（18）, the steam vent（18）With snap joint（3）Connection, snap joint（3）The other end connect
It is connected to a three-way pipe（6）, described three-way pipe（6）Other two ends be connected to production procedure pipeline（5）, described is unidirectional
Valve（4）Installed in three-way pipe（6）Interior intersection；
The valve discharging gas under certain pressure（1）Including valve body（16）, the valve body（16）Inside it is provided with piston（14）, piston（14）Under be connected with
Upper end is equipped with valve ball（19）Valve support（21）, valve support（21）It is set with valve seat outward（22）；
The air admission hole（17）Located at valve seat（22）Side, and equipped with valve ball（19）Valve support（21）Communicate, the steam vent
（18）Located at valve body（16）Opposite side, the steam vent（18）Positioned at piston（14）With valve support（21）The top being in contact；
The piston（14）By vulcanizing sealing gasket（15）Being sleeved on upper end has valve ball（19）Valve support（21）On；
The valve discharging gas under certain pressure（1）Also include being located at valve body（16）The pressure duty chamber of top（7）, located at pressure duty chamber（7）
Outer scale set（12）, located at pressure duty chamber（7）The pressure regulation cap of top（9）, located at pressure duty chamber（7）With pressure regulation cap（9）
Between push rod（8）；The pressure duty chamber（7）With scale set（12）It is fixedly connected, the pressure regulation cap（9）With scale set（12）
It is slidably connected, pressure regulation cap（9）By bolt（20）It is fixed on scale set（12）On；The pressure duty chamber（7）Inside it is provided with level pressure
Spring（11）, level pressure spring（11）Upper end passes through spring base（10）Connection push rod（8）Lower end, level pressure spring（11）Lower end and work
Plug（14）Connection, push rod（8）Upper end and pressure regulation cap（9）Upper end connects；The valve support（21）By screw thread and valve seat（22）Even
Connect；The scale set（12）By O-ring seal（13）It is sleeved on pressure duty chamber（7）It is outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410633808.3A CN104358547B (en) | 2014-11-12 | 2014-11-12 | Gas-liquid separation type sleeve gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410633808.3A CN104358547B (en) | 2014-11-12 | 2014-11-12 | Gas-liquid separation type sleeve gas recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104358547A CN104358547A (en) | 2015-02-18 |
| CN104358547B true CN104358547B (en) | 2017-06-13 |
Family
ID=52525844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410633808.3A Active CN104358547B (en) | 2014-11-12 | 2014-11-12 | Gas-liquid separation type sleeve gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358547B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134135A (en) * | 2015-07-30 | 2015-12-09 | 河南中拓石油工程技术股份有限公司 | Oil well casing pipe air negative pressure protection and separation apparatus |
| CN105257255B (en) * | 2015-10-28 | 2017-12-01 | 中国石油天然气股份有限公司 | Plug-in type anti-freezing and anti-blocking casing gas recovery device |
| CN111042771B (en) * | 2019-11-21 | 2022-03-29 | 中国石油天然气股份有限公司 | Wellhead casing gas pressurization recovery device, system, method and application |
| CN112392442B (en) * | 2020-11-19 | 2023-04-07 | 中国石油天然气股份有限公司 | Anti-freezing and anti-blocking casing gas recovery device and method |
| CN115506771A (en) * | 2022-10-12 | 2022-12-23 | 东营市瑞洲石油科技有限公司 | Oil-gas separation device of oil well combined station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656620Y (en) * | 2003-11-04 | 2004-11-17 | 中国石油天然气股份有限公司 | Oil well casing gas recovery valve |
| CN2679355Y (en) * | 2004-02-17 | 2005-02-16 | 许楠 | Well casing gas reclaimer |
| CN2703869Y (en) * | 2004-01-09 | 2005-06-08 | 隆凯成 | Casing gas constant-pressure recovery device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3378224A (en) * | 1965-06-28 | 1968-04-16 | Otis Eng Co | Well tools |
| US5046376A (en) * | 1991-04-03 | 1991-09-10 | Cooper Industries, Inc. | Shaft locking or manual operating apparatus |
| CN201103377Y (en) * | 2007-02-05 | 2008-08-20 | 沈阳航院石油设备厂 | Gas pressure maintaining device of petroleum casing pipe |
| CN201502357U (en) * | 2009-09-12 | 2010-06-09 | 中国石化集团胜利石油管理局石油开发中心 | Constant-pressure automatic gas discharge/collecting device of oil well sleeve |
| CN102808595A (en) * | 2012-07-24 | 2012-12-05 | 天津市金地科技发展有限公司 | Adjustable sleeve air release device |
| CN202810783U (en) * | 2012-07-24 | 2013-03-20 | 天津市金地科技发展有限公司 | Constant-pressure exhaust recovery device for oil well casing |
| CN204252963U (en) * | 2014-11-12 | 2015-04-08 | 中国石油天然气股份有限公司 | Gas-liquid separation type sleeve gas recovery device |
-
2014
- 2014-11-12 CN CN201410633808.3A patent/CN104358547B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656620Y (en) * | 2003-11-04 | 2004-11-17 | 中国石油天然气股份有限公司 | Oil well casing gas recovery valve |
| CN2703869Y (en) * | 2004-01-09 | 2005-06-08 | 隆凯成 | Casing gas constant-pressure recovery device |
| CN2679355Y (en) * | 2004-02-17 | 2005-02-16 | 许楠 | Well casing gas reclaimer |
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| Publication number | Publication date |
|---|---|
| CN104358547A (en) | 2015-02-18 |
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