CN105257255B - Plug-in type anti-freezing and anti-blocking casing gas recovery device - Google Patents
Plug-in type anti-freezing and anti-blocking casing gas recovery device Download PDFInfo
- Publication number
- CN105257255B CN105257255B CN201510709118.6A CN201510709118A CN105257255B CN 105257255 B CN105257255 B CN 105257255B CN 201510709118 A CN201510709118 A CN 201510709118A CN 105257255 B CN105257255 B CN 105257255B
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- oil pipe
- under certain
- constant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011084 recovery Methods 0.000 title abstract description 9
- 238000007710 freezing Methods 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002528 anti-freeze Effects 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 22
- 239000010779 crude oil Substances 0.000 abstract description 14
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000003129 oil well Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 230000008014 freezing Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The invention provides a plug-in type anti-freezing and anti-blocking casing gas recovery device, which comprises an oil pipe, a constant-pressure air release valve and a pressure conductor, wherein the lower end of the constant-pressure air release valve is inserted into the oil pipe, the upper end of the constant-pressure air release valve is provided with a pressure regulating cap, the upper end of the pressure regulating cap is fixedly connected with the upper end of the pressure conductor, the pressure conductor penetrates through the constant-pressure air release valve and extends into the oil pipe, the inner pipe is sleeved inside the lower end of the constant-pressure air release valve, and; the upper end of the air inlet cavity is connected with a one-way valve through a screw thread, and the lower end of the inner pipe is provided with an exhaust hole which is communicated with the oil pipe; the device integrates a constant pressure vent valve and a check valve, is arranged in an oil pipe at the wellhead of an oil well to work, can accompany heat by virtue of the heat of crude oil on site, and discharges condensed water while opening and exhausting the constant pressure vent valve in a sleeving way by arranging a valve seat above a pressure regulating piston, thereby completely solving the problems of heat absorption and freezing blockage in winter when gas is released; and simultaneously the one-way valve can prevent crude oil from flowing into the sleeve.
Description
Technical field
The present invention relates to a kind of antifreeze stifled casing gas recovering device of plug-in, belong to technical field of oil production engineering.
Background technology
At present, oil field at home casing gas recovery process mainly uses ground recovery technology, mainly well head constant pressure valve gas collection
It is mixed defeated.Constant pressure valve absorbs heat when gas discharges, and produces condensate while opening exhaust, frozen block is easily assembled in gas circuit, is caused
Valve element frozen block and can not use.
The content of the invention
In order to overcome the susceptible to plugging problem of existing apparatus, the present invention provides a kind of plug-in antifreeze stifled casing gas recovery dress
Put, the present apparatus solves the problems, such as the frozen block of valve element, reaches the purpose of complete recovery of casing gas, and valve discharging gas under certain pressure opens the same of exhaust
When discharge condensate, so as to be fully solved gas release when heat absorption and winter frozen block problem；Check valve can prevent crude oil simultaneously
Flow into sleeve pipe.
The technical solution adopted by the present invention is：
A kind of antifreeze stifled casing gas recovering device of plug-in, including oil pipe, valve discharging gas under certain pressure and pressure conduction body, level pressure are put
The lower end insertion oil pipe of air valve, the upper end of valve discharging gas under certain pressure are provided with pressure regulation cap, pressure regulation cap upper end and the upper end of pressure conduction body
It is fixedly connected, pressure conduction body is extended to inside oil pipe through valve discharging gas under certain pressure, and valve discharging gas under certain pressure is socketed with inner tube inside lower end,
And form inlet chamber with inner tube；
Inlet chamber upper end is provided with steam vent by screwed connection check valve, inner tube lower end, and steam vent connects with oil pipe；It is interior
Pipe lower end is socketed with valve support, is socketed with valve seat outside valve support, valve seat is sleeved on the relief piston being connected with valve seat, under relief piston
End is connected with spring base, and pressure spring is connected between spring base and relief piston, and the lower end of spring base and pressure conduction body connects
Connect.
Described pressure regulation cap is bolted to connection with pressure conduction body.
Described inlet chamber outer upper ends are provided with scale set.
Described scale set is sleeved on outside inlet chamber by O-ring seal.
Described inlet chamber lower end is sleeved in valve support by sealing gasket.
Described valve support is connected by screw thread with valve seat.
Described spring base passes through screwed connection pressure conduction body.
Beneficial effects of the present invention are：
Valve discharging gas under certain pressure suit mode of the valve seat above relief piston, can make by the heat heat tracing of live crude oil
Obtain while valve discharging gas under certain pressure opens exhaust and discharge condensate, so as to which heat absorption and winter frozen block are asked when being fully solved gas release
Topic；Check valve can prevent crude oil from flowing into sleeve pipe simultaneously.
The present apparatus solves the problems, such as the frozen block of valve element, reaches the purpose of complete recovery of casing gas.
Brief description of the drawings
Fig. 1 is the antifreeze stifled casing gas recovering device structural representation of oil well plug-in.
In figure, brief description of the drawings：1st, check valve；2nd, valve discharging gas under certain pressure；3rd, oil pipe；4th, pressure regulation cap；5th, bolt；6th, scale set；
7th, inlet chamber；8th, sealing gasket；9th, valve support；10th, valve seat；11st, relief piston；12nd, steam vent；13rd, pressure spring；14th, spring base；
15th, pressure conduction body；16th, inner tube.
Embodiment
Embodiment 1：
In order to overcome the susceptible to plugging problem of existing apparatus, the present invention provides the anti-frozen block of a kind of plug-in as shown in Figure 1
Casing gas recovering device, the present apparatus solve the problems, such as the frozen block of valve element, reach the purpose of complete recovery of casing gas, valve discharging gas under certain pressure
Condensate is discharged while opening exhaust, so as to be fully solved heat absorption and winter frozen block problem when gas discharges；Check valve simultaneously
It can prevent crude oil from flowing into sleeve pipe.
A kind of antifreeze stifled casing gas recovering device of plug-in, including oil pipe 3, valve discharging gas under certain pressure 2 and pressure conduction body 15, it is fixed
The lower end insertion oil pipe 3 of air valve 2 is pressed, the upper end of valve discharging gas under certain pressure 2 is provided with pressure regulation cap 4, the upper end of pressure regulation cap 4 and pressure conduction
The upper end of body 15 is fixedly connected, and pressure conduction body 15 is extended to inside oil pipe 3 through valve discharging gas under certain pressure 2, the lower end of valve discharging gas under certain pressure 2
Inside is socketed with inner tube 16, and forms inlet chamber 7 with inner tube 16；
For the upper end of inlet chamber 7 by screwed connection check valve 1, the lower end of inner tube 16 is provided with steam vent 12, steam vent 12 and oil
Pipe 3 connects；The lower end of inner tube 16 is socketed with valve support 9, is socketed with valve seat 10 outside valve support 9, valve seat 10 is sleeved on what is be connected with valve seat 10
On relief piston 11, the lower end of relief piston 11 is connected with spring base 14, and pressure regulation is connected between spring base 14 and relief piston 11
Spring 13, spring base 14 are connected with the lower end of pressure conduction body 15.
The present apparatus is provided with check valve 1 and valve discharging gas under certain pressure 2.Device front end connects admission line, and rear end passes through screwed connection
Oil pipe 3, the directly fully-inserted oil pipe 3 of valve discharging gas under certain pressure 2.
The pressure regulation cap 4 of valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and scale set 6 passes through O-shaped sealing
For snare outside inlet chamber 7, the upper end of inlet chamber 7 passes through screwed connection check valve 1；The lower end of inlet chamber 7 is set with by sealing gasket 8
In valve support 9, valve support 9 is connected by screw thread with valve seat 10.Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects pressure regulation
Spring 13, then connecting spring seat 14, spring base 14 pass through screwed connection pressure conduction body 15.
The course of work of this retracting device is as follows：
As shown in figure 1, present apparatus inserting of valve discharging gas under certain pressure 2 in actual production process is fixed in oil pipe 3, companion can reach
The antifreeze effect of heat.A pressure value must be set before valve discharging gas under certain pressure 2 works in the present apparatus, that is, rotates pressure regulation cap 4, band dynamic pressure passes
Conductor 15 and air inlet cavity 7 are moved up and down, and compress pressure spring 13, and the pressure of steam vent 12, pressure are adjusted by relief piston 11
It is directly displayed on scale set 6, pressure setting is completed.When gas is more than setting and pressed by check valve 1 into inlet chamber 7 and pressure
Promote relief piston 11 to move down during power, open steam vent 12, casing gas is directly mixed to defeated into oil pipe 3, recovery completely
Casing gas.Valve discharging gas under certain pressure 2 can be by the heat heat tracing of live crude oil, and valve seat 10 is mounted in the suit side of the top of relief piston 11
Formula so that valve discharging gas under certain pressure 2 discharges condensate while opening exhaust, so as to which heat absorption and winter freeze when being fully solved gas release
Stifled problem.Check valve 1 can prevent crude oil from flowing into sleeve pipe simultaneously.
Embodiment 2：
On the basis of embodiment 1, in the present embodiment, pressure regulation cap 4 is fixed with pressure conduction body 15 by bolt 5 to be connected
Connect.
The pressure regulation cap 4 of present apparatus valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, ensure that pressure passes
Valve discharging gas under certain pressure 2 is adjusted after the pressure variables that conductor 15 senses, there is provided required pressure value.
The lower end of inlet chamber 7 is sleeved in valve support 9 by sealing gasket 8.
Valve support 9 is tightly connected by sealing gasket 8 and the lower end of inlet chamber 7, ensures the inner sealing of inlet chamber 7.
Valve support 9 is connected by screw thread with valve seat 10.Screwed connection ensure that valve support 9 is not fallen off, and one is linked as with valve seat 10
Body.
Spring base 14 passes through screwed connection pressure conduction body 15.
Pass through the connection of screw thread so that will not fall off between spring base 14 and pressure conduction body 15, it is ensured that device is just
Often, efficient operation.
The pressure regulation cap 4 of present apparatus valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and the upper end of inlet chamber 7 leads to
Cross screwed connection check valve 1；Inlet chamber lower end is set with valve support 9 by sealing gasket 8, and valve support 9 is connected by screw thread with valve seat 10.
Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects pressure spring 13, then connecting spring seat 14, and spring base 14 is logical
Cross screwed connection pressure conduction body 15.
Check valve 1 accesses oil pipe 3 by admission line and sleeve pipe connection, valve discharging gas under certain pressure 2, and valve body is totally immersed into crude oil.
Valve discharging gas under certain pressure 2 can be by the heat heat tracing of live crude oil, suit mode of the valve seat 10 mounted in the top of relief piston 11 so that fixed
Press while air valve 2 opens exhaust and discharge condensate, so as to be fully solved heat absorption and winter frozen block problem when gas discharges；Together
When check valve 1 can prevent crude oil flow into sleeve pipe.
Embodiment 3：
On the basis of embodiment 1, in the present embodiment, the outer upper ends of inlet chamber 7 are provided with scale set 6.
Set scale to cover 6 outside inlet chamber 7, the change for intuitively seeing regulation can be understood, scale set 6 can accurately show
Show the data of reading.
Scale set 6 is sleeved on outside inlet chamber 7 by O-ring seal.
The scale set 6 that O-ring seal makes to be sleeved on outside inlet chamber 7 will not come off because of the change of temperature, it is ensured that carve
Degree set 6 is tightly connected with inlet chamber 7.
The pressure regulation cap 4 of present apparatus valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and scale set 6 passes through O
For type ring set outside inlet chamber 7, the upper end of inlet chamber 7 passes through screwed connection check valve 1；Inlet chamber lower end passes through sealing gasket
In 8 suit valve supports 9, valve support 9 is connected by screw thread with valve seat 10.Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects
Pressure spring 13 is connect, then connecting spring seat 14, spring base 14 passes through screwed connection pressure conduction body 15.
Check valve 1 accesses oil pipe 3 by admission line and sleeve pipe connection, valve discharging gas under certain pressure 2, and valve body is totally immersed into crude oil.
Valve discharging gas under certain pressure 2 can be by the heat heat tracing of live crude oil, suit mode of the valve seat 10 mounted in the top of relief piston 11 so that fixed
Press while air valve 2 opens exhaust and discharge condensate, so as to be fully solved heat absorption and winter frozen block problem when gas discharges；Together
When check valve 1 can prevent crude oil flow into sleeve pipe.
The part and the well-known components and common structure of the structure category industry or conventional hand that the present embodiment does not describe in detail
Section, is not described one by one here.
Claims (1)
- A kind of 1. antifreeze stifled casing gas recovering device of plug-in, it is characterised in that：Including oil pipe（3）, valve discharging gas under certain pressure（2）And pressure Power conductor（15）, valve discharging gas under certain pressure（2）Lower end insertion oil pipe（3）, valve discharging gas under certain pressure（2）Upper end be provided with pressure regulation cap （4）, pressure regulation cap（4）Upper end and pressure conduction body（15）Upper end be fixedly connected, pressure conduction body（15）Through valve discharging gas under certain pressure （2）Extend to oil pipe（3）Inside, valve discharging gas under certain pressure（2）Inner tube is socketed with inside lower end（16）, and and inner tube（16）Form air inlet Chamber（7）；Inlet chamber（7）Upper end passes through screwed connection check valve（1）, inner tube（16）Lower end is provided with steam vent（12）, steam vent （12）With oil pipe（3）Connection；Inner tube（16）Lower end is socketed with valve support（9）, valve support（9）It is socketed with valve seat outside（10）, valve seat（10） It is sleeved on and valve seat（10）The relief piston of connection（11）On, relief piston（11）Lower end is connected with spring base（14）, spring base （14）With relief piston（11）Between be connected with pressure spring（13）, spring base（14）With pressure conduction body（15）Lower end connect Connect；Described pressure regulation cap（4）With pressure conduction body（15）Pass through bolt（5）It is fixedly connected；Described inlet chamber（7）Outer upper ends It is provided with scale set（6）；Described scale set（6）Inlet chamber is sleeved on by O-ring seal（7）It is outside；Described inlet chamber （7）Lower end passes through sealing gasket（8）It is sleeved on valve support（9）On；Described valve support（9）Pass through screw thread and valve seat（10）Connection；It is described Spring base（14）Pass through screwed connection pressure conduction body（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709118.6A CN105257255B (en) | 2015-10-28 | 2015-10-28 | Plug-in type anti-freezing and anti-blocking casing gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709118.6A CN105257255B (en) | 2015-10-28 | 2015-10-28 | Plug-in type anti-freezing and anti-blocking casing gas recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257255A CN105257255A (en) | 2016-01-20 |
| CN105257255B true CN105257255B (en) | 2017-12-01 |
Family
ID=55097145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510709118.6A Active CN105257255B (en) | 2015-10-28 | 2015-10-28 | Plug-in type anti-freezing and anti-blocking casing gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257255B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826583A (en) * | 2019-01-25 | 2019-05-31 | 中国石油天然气股份有限公司 | Defrosting device is exempted from to construction well head in winter operation |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU440482A1 (en) * | 1972-08-25 | 1974-08-25 | Краснодарский Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности | Gas lift valve |
| CN201474664U (en) * | 2009-06-03 | 2010-05-19 | 新疆精工刀具机械设备有限公司 | Pressure-adjustable gas safety recovery unit |
| CN202493240U (en) * | 2011-11-11 | 2012-10-17 | 赵延平 | Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set |
| CN104358547A (en) * | 2014-11-12 | 2015-02-18 | 中国石油天然气股份有限公司 | Gas-liquid separation type sleeve gas recovery device |
| CN104514521A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Access type associated gas recovery device |
| CN205135572U (en) * | 2015-10-28 | 2016-04-06 | 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 |
-
2015
- 2015-10-28 CN CN201510709118.6A patent/CN105257255B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU440482A1 (en) * | 1972-08-25 | 1974-08-25 | Краснодарский Государственный Научно-Исследовательский И Проектный Институт Нефтяной Промышленности | Gas lift valve |
| CN201474664U (en) * | 2009-06-03 | 2010-05-19 | 新疆精工刀具机械设备有限公司 | Pressure-adjustable gas safety recovery unit |
| CN202493240U (en) * | 2011-11-11 | 2012-10-17 | 赵延平 | Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set |
| CN104514521A (en) * | 2013-09-27 | 2015-04-15 | 中国石油天然气股份有限公司 | Access type associated gas recovery device |
| CN104358547A (en) * | 2014-11-12 | 2015-02-18 | 中国石油天然气股份有限公司 | Gas-liquid separation type sleeve gas recovery device |
| CN205135572U (en) * | 2015-10-28 | 2016-04-06 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105257255A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202081851U (en) | Polish rod sealing apparatus | |
| CN105257255B (en) | Plug-in type anti-freezing and anti-blocking casing gas recovery device | |
| CN104358547B (en) | Gas-liquid separation type sleeve gas recovery device | |
| CN206054220U (en) | A kind of high-pressure inflating pump | |
| CN205135572U (en) | Plug-in type anti-freezing and anti-blocking casing gas recovery device | |
| CN204877367U (en) | Open hole packer packing element | |
| CN104929560A (en) | Sand-prevention blanking plug | |
| CN206054724U (en) | A kind of negative pressure sealing device for housing of confined space | |
| CN208526255U (en) | VOCs gas treatment booster system complexes | |
| CN104864601A (en) | Electric water heater inner bag blowdown structure and electric water heater | |
| CN2763486Y (en) | Freezing-resisting theft-proof bore top device for oil production | |
| CN206129597U (en) | Spiral shell sucker -rod pumping is prevented burning with preventing buggy by coal seam gas well | |
| CN108204217B (en) | Electric heating chemical packer for screen pipe well completion horizontal well and use method | |
| CN2903134Y (en) | Electric heating roller assembly of pattern brushing machine | |
| CN210569070U (en) | Rat-proof sealing plug of air conditioner outdoor unit | |
| CN203614073U (en) | Thermal insulation annular blowout preventer for oil well | |
| CN204984338U (en) | Sand control blanking plug | |
| CN113586130B (en) | Low-permeability strong-adsorptivity coal heat injection hole packer | |
| CN204512954U (en) | The on-the-spot air circuit antifreezing device of petroleum works | |
| CN204252963U (en) | Gas-liquid separation type sleeve gas recovery device | |
| CN104847307B (en) | A kind of well-washing wax-cleaning car LNG pretreatment units and its processing method | |
| CN203980694U (en) | The interim water storage device of a kind of shower | |
| CN201844544U (en) | Instantly heating type water heater with decompression and drip-proof structure | |
| CN210367611U (en) | Device for preparing oil purifier | |
| CN100342133C (en) | Solar hydraulic transmission device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |