CN105257255A - Plug-in anti-frozen-blocking casing gas recovery device - Google Patents
Plug-in anti-frozen-blocking casing gas recovery device Download PDFInfo
- Publication number
- CN105257255A CN105257255A CN201510709118.6A CN201510709118A CN105257255A CN 105257255 A CN105257255 A CN 105257255A CN 201510709118 A CN201510709118 A CN 201510709118A CN 105257255 A CN105257255 A CN 105257255A
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- plug
- constant
- under certain
- 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.)
- Granted
Links
Landscapes
- Safety Valves (AREA)
Abstract
The invention provides a plug-in anti-frozen-blocking casing gas recovery device which comprises an oil pipe, a constant-pressure gas relief valve and a pressure conductor, wherein the lower end of the constant-pressure gas relief valve is inserted into the oil pipe; a pressure regulating cap is arranged at the upper end of the constant-pressure gas relief valve; 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 gas relief valve and extends into the oil pipe; the interior at the lower end of the constant-pressure gas relief valve is sleeved by an inner pipe to form an gas inlet cavity; the upper end of the gas inlet cavity is connected with a one-way valve through a screw thread; a gas vent is formed in the lower end of the inner pipe, and communicated with the oil pipe. The device integrates the constant-pressure gas relief valve and the one-way valve, and is mounted in a wellhead oil pipe of an oil well; the constant-pressure gas relief valve can be subjected to heat tracing by virtue of crude oil heat on site, and condensation water can be discharged when the constant-pressure gas relief valve is opened for gas discharge through adoption of such a sleeving manner that the valve seat is mounted above a relief piston, so that the problems of heat absorption during gas relief and frozen-blocking in winter can be completely solved; meanwhile, the one-way valve can prevent crude oil from flowing into a casing pipe.
Description
Technical field
The present invention relates to the anti-frozen block casing gas recovering device of a kind of plug-in, belong to technical field of oil production engineering.
Background technology
At present, oil field at home casing gas recovery process mainly adopts ground recovery technology, and mainly well head constant pressure valve gas collection mixes defeated.Constant pressure valve absorbs heat when air release, produces condensate water, easily in gas circuit, assemble frozen block, cause spool frozen block and cannot use while opening exhaust.
Summary of the invention
In order to overcome the susceptible to plugging problem of existing apparatus, the invention provides the anti-frozen block casing gas recovering device of a kind of plug-in, this device solves the frozen block problem of spool, reach the object of complete recovery of casing gas, valve discharging gas under certain pressure open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem; One way valve can prevent crude oil from flowing into sleeve pipe simultaneously.
The technical solution used in the present invention is:
The anti-frozen block casing gas recovering device of a kind of plug-in, comprise oil pipe, valve discharging gas under certain pressure and pressure conduction body, oil pipe is inserted in the lower end of valve discharging gas under certain pressure, the upper end of valve discharging gas under certain pressure is provided with pressure regulation cap, pressure regulation cap upper end is fixedly connected with the upper end of pressure conduction body, pressure conduction body extends to oil pipe inside through valve discharging gas under certain pressure, and valve discharging gas under certain pressure lower end internal sleeve is connected to interior pipe, and forms inlet chamber with interior pipe;
Inlet chamber upper end is by screwed connection one way valve, and interior pipe lower end is provided with steam vent, and steam vent is communicated with oil pipe; Interior pipe lower end is socketed with valve holder, is socketed with valve seat outside valve holder, and valve seat is sleeved on the relief piston that is connected with valve seat, and relief piston lower end is connected with spring base, is connected with pressure spring between spring base and relief piston, and spring base is connected with the lower end of pressure conduction body.
Described pressure regulation cap and pressure conduction body are bolted to connection.
Described inlet chamber outer upper ends is provided with scale cover.
Described scale cover is sleeved on inlet chamber outside by O RunddichtringO.
Described inlet chamber lower end is sleeved in valve holder by sealing mat.
Described valve holder is connected with valve seat by screw thread.
Described spring base is by screwed connection pressure conduction body.
Beneficial effect of the present invention is:
Valve discharging gas under certain pressure can by on-the-spot crude oil heat companion heat, valve seat is contained in the suit mode above relief piston, make valve discharging gas under certain pressure open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem; One way valve can prevent crude oil from flowing into sleeve pipe simultaneously.
This device solves the frozen block problem of spool, reaches the object of complete recovery of casing gas.
Accompanying drawing explanation
Fig. 1 is oil well plug-in anti-frozen block casing gas recovering device structural representation.
In figure, accompanying drawing illustrates: 1, one way valve; 2, valve discharging gas under certain pressure; 3, oil pipe; 4, pressure regulation cap; 5, bolt; 6, scale cover; 7, inlet chamber; 8, sealing mat; 9, valve holder; 10, valve seat; 11, relief piston; 12, steam vent; 13, pressure spring; 14, spring base; 15, pressure conduction body; 16, interior pipe.
Detailed description of the invention
Embodiment 1:
In order to overcome the susceptible to plugging problem of existing apparatus, the invention provides the anti-frozen block casing gas recovering device of a kind of plug-in as shown in Figure 1, this device solves the frozen block problem of spool, reach the object of complete recovery of casing gas, valve discharging gas under certain pressure open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem; One way valve can prevent crude oil from flowing into sleeve pipe simultaneously.
The anti-frozen block casing gas recovering device of a kind of plug-in, comprise oil pipe 3, valve discharging gas under certain pressure 2 and pressure conduction body 15, oil pipe 3 is inserted in the lower end of valve discharging gas under certain pressure 2, the upper end of valve discharging gas under certain pressure 2 is provided with pressure regulation cap 4, pressure regulation cap 4 upper end is fixedly connected with the upper end of pressure conduction body 15, it is inner that pressure conduction body 15 extends to oil pipe 3 through valve discharging gas under certain pressure 2, and valve discharging gas under certain pressure 2 lower end internal sleeve is connected to interior pipe 16, and forms inlet chamber 7 with interior pipe 16;
Inlet chamber 7 upper end is by screwed connection one way valve 1, and interior pipe 16 lower end is provided with steam vent 12, and steam vent 12 is communicated with oil pipe 3; Interior pipe 16 lower end is socketed with valve holder 9, valve seat 10 is socketed with outside valve holder 9, valve seat 10 is sleeved on the relief piston 11 that is connected with valve seat 10, relief piston 11 lower end is connected with spring base 14, be connected with pressure spring 13 between spring base 14 and relief piston 11, spring base 14 is connected with the lower end of pressure conduction body 15.
This device is provided with one way valve 1 and valve discharging gas under certain pressure 2.Device front end connects admission line, and rear end is by screwed connection oil pipe 3, and valve discharging gas under certain pressure 2 directly inserts oil pipe 3 completely.
The pressure regulation cap 4 of valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and it is outside that scale cover 6 is sleeved on inlet chamber 7 by O RunddichtringO, and inlet chamber 7 upper end is by screwed connection one way valve 1; Inlet chamber 7 lower end is set with in valve holder 9 by sealing mat 8, and valve holder 9 is connected with valve seat 10 by screw thread.Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects pressure spring 13, then linking springs seat 14, and spring base 14 is by screwed connection pressure conduction body 15.
The course of work of this retracting device is as follows:
As shown in Figure 1, this device valve discharging gas under certain pressure 2 plug-in mounting in actual production process is fixed in oil pipe 3, can reach the effect that companion's heat is antifreeze.In this device, valve discharging gas under certain pressure 2 must set a force value before working, and namely rotates pressure regulation cap 4, drives pressure conduction body 15 and air inlet cavity 7 to move up and down, compression pressure spring 13, regulate steam vent 12 pressure by relief piston 11, pressure is directly presented on scale cover 6, and pressure setting completes.Promote relief piston 11 when gas enters inlet chamber 7 by one way valve 1 and pressure is greater than setting pressure to move down, open steam vent 12, being directly passed in oil pipe 3 by mixed for casing gas, complete recovery of casing gas.Valve discharging gas under certain pressure 2 can by on-the-spot crude oil heat companion heat, valve seat 10 is contained in the suit mode above relief piston 11, make valve discharging gas under certain pressure 2 open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem.One way valve 1 can prevent crude oil from flowing into sleeve pipe simultaneously.
Embodiment 2:
On basis based on embodiment 1, in the present embodiment, pressure regulation cap 4 is fixedly connected with by bolt 5 with pressure conduction body 15.
The pressure regulation cap 4 of this device valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, regulates valve discharging gas under certain pressure 2, provide required force value after ensure that the pressure variables that pressure conduction body 15 senses.
Inlet chamber 7 lower end is sleeved in valve holder 9 by sealing mat 8.
Valve holder 9 is tightly connected by sealing mat 8 and inlet chamber 7 lower end, ensures inlet chamber 7 inner sealing.
Valve holder 9 is connected with valve seat 10 by screw thread.Screwed connection ensure that valve holder 9 can not landing, is connected as a single entity with valve seat 10.
Spring base 14 is by screwed connection pressure conduction body 15.
By the connection of screw thread, make can not come off between spring base 14 and pressure conduction body 15, ensure that device normal, run efficiently.
The pressure regulation cap 4 of this device valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and inlet chamber 7 upper end is by screwed connection one way valve 1; Inlet chamber lower end is set with in valve holder 9 by sealing mat 8, and valve holder 9 is connected with valve seat 10 by screw thread.Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects pressure spring 13, then linking springs seat 14, and spring base 14 is by screwed connection pressure conduction body 15.
One way valve 1 is connected with sleeve pipe by admission line, and valve discharging gas under certain pressure 2 accesses oil pipe 3, and valve body all immerses crude oil.Valve discharging gas under certain pressure 2 can by on-the-spot crude oil heat companion heat, valve seat 10 is contained in the suit mode above relief piston 11, make valve discharging gas under certain pressure 2 open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem; One way valve 1 can prevent crude oil from flowing into sleeve pipe simultaneously.
Embodiment 3:
On basis based on embodiment 1, in the present embodiment, inlet chamber 7 outer upper ends is provided with scale cover 6.
At inlet chamber 7 outer setting scale cover 6, can know the change seeing adjustment intuitively, scale cover 6 can accurately show the data of reading.
It is outside that scale cover 6 is sleeved on inlet chamber 7 by O RunddichtringO.
O RunddichtringO makes the scale cover 6 being sleeved on inlet chamber 7 outside can not come off because of the change of temperature, ensure that scale cover 6 is tightly connected with inlet chamber 7.
The pressure regulation cap 4 of this device valve discharging gas under certain pressure 2 is fixed on pressure conduction body 15 by bolt 5, and it is outside that scale cover 6 is sleeved on inlet chamber 7 by O RunddichtringO, and inlet chamber 7 upper end is by screwed connection one way valve 1; Inlet chamber lower end is set with in valve holder 9 by sealing mat 8, and valve holder 9 is connected with valve seat 10 by screw thread.Valve seat 10 is sleeved on relief piston 11, and relief piston 11 connects pressure spring 13, then linking springs seat 14, and spring base 14 is by screwed connection pressure conduction body 15.
One way valve 1 is connected with sleeve pipe by admission line, and valve discharging gas under certain pressure 2 accesses oil pipe 3, and valve body all immerses crude oil.Valve discharging gas under certain pressure 2 can by on-the-spot crude oil heat companion heat, valve seat 10 is contained in the suit mode above relief piston 11, make valve discharging gas under certain pressure 2 open exhaust while discharge condensate water, thus completely solve air release time heat absorption and winter frozen block problem; One way valve 1 can prevent crude oil from flowing into sleeve pipe simultaneously.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (7)
1. the anti-frozen block casing gas recovering device of plug-in, it is characterized in that: comprise oil pipe (3), valve discharging gas under certain pressure (2) and pressure conduction body (15), oil pipe (3) is inserted in the lower end of valve discharging gas under certain pressure (2), the upper end of valve discharging gas under certain pressure (2) is provided with pressure regulation cap (4), pressure regulation cap (4) upper end is fixedly connected with the upper end of pressure conduction body (15), it is inner that pressure conduction body (15) extends to oil pipe (3) through valve discharging gas under certain pressure (2), valve discharging gas under certain pressure (2) lower end internal sleeve is connected to interior pipe (16), and forms inlet chamber (7) with interior pipe (16);
Inlet chamber (7) upper end is by screwed connection one way valve (1), and interior pipe (16) lower end is provided with steam vent (12), and steam vent (12) is communicated with oil pipe (3); Interior pipe (16) lower end is socketed with valve holder (9), valve seat (10) is socketed with outside valve holder (9), valve seat (10) is sleeved on the relief piston (11) that is connected with valve seat (10), relief piston (11) lower end is connected with spring base (14), be connected with pressure spring (13) between spring base (14) and relief piston (11), spring base (14) is connected with the lower end of pressure conduction body (15).
2. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 1, is characterized in that: described pressure regulation cap (4) is fixedly connected with by bolt (5) with pressure conduction body (15).
3. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 1, is characterized in that: described inlet chamber (7) outer upper ends is provided with scale cover (6).
4. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 3, is characterized in that: it is outside that described scale cover (6) is sleeved on inlet chamber (7) by O RunddichtringO.
5. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 1, is characterized in that: described inlet chamber (7) lower end is sleeved in valve holder (9) by sealing mat (8).
6. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 1, is characterized in that: described valve holder (9) is connected with valve seat (10) by screw thread.
7. the anti-frozen block casing gas recovering device of a kind of plug-in according to claim 1, is characterized in that: described spring base (14) is by 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 | A kind of antifreeze stifled casing gas recovering device of plug-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709118.6A CN105257255B (en) | 2015-10-28 | 2015-10-28 | A kind of antifreeze stifled casing gas recovering device of plug-in |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105257255A true CN105257255A (en) | 2016-01-20 |
| CN105257255B 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 | A kind of antifreeze stifled casing gas recovering device of plug-in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257255B (en) |
Cited By (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 | A kind of winter job construction well head exempts from thawing apparatus |
| CN112392442A (en) * | 2020-11-19 | 2021-02-23 | 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 casing gas recycling 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 recycling device |
| CN205135572U (en) * | 2015-10-28 | 2016-04-06 | 中国石油天然气股份有限公司 | Cartridge formula is prevented frostbite and is blocked up sleeve pipe gas recovery unit |
-
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 recycling 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 casing gas recycling device |
| CN205135572U (en) * | 2015-10-28 | 2016-04-06 | 中国石油天然气股份有限公司 | Cartridge formula is prevented frostbite and is blocked up sleeve pipe gas recovery unit |
Cited By (3)
| 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 | A kind of winter job construction well head exempts from thawing apparatus |
| CN112392442A (en) * | 2020-11-19 | 2021-02-23 | 中国石油天然气股份有限公司 | Anti-freezing and anti-blocking casing gas recovery device and method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105257255B (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205135572U (en) | Cartridge formula is prevented frostbite and is blocked up sleeve pipe gas recovery unit | |
| CN105257255A (en) | Plug-in anti-frozen-blocking casing gas recovery device | |
| CN104358547B (en) | A kind of gas-liquid separation type sleeve gas recovering device | |
| CN203764587U (en) | Automatic water supply steam cleaning machine | |
| CN205208933U (en) | Explosion -proof heat -conducting oil device | |
| CN104514521A (en) | Access type associated gas recycling device | |
| CN203494724U (en) | Leaching baking varnish device | |
| CN204252963U (en) | A kind of gas-liquid separation type sleeve gas recovering device | |
| CN205208544U (en) | Intelligence water balance system | |
| CN206175194U (en) | Air compressor preheating time shortens system | |
| CN205843058U (en) | A kind of hot water cyclesystem installing check-valves in three-way valve | |
| CN104847307B (en) | A kind of well-washing wax-cleaning car LNG pretreatment units and its processing method | |
| CN205654506U (en) | Recycle hydrogen compressor | |
| CN104634894B (en) | Transformer oil-gas detection device | |
| CN204765078U (en) | Instant heating water dispenser | |
| CN205807936U (en) | Anti-drying automatic water-cooling cooling structure | |
| CN204512954U (en) | The on-the-spot air circuit antifreezing device of petroleum works | |
| CN204099340U (en) | A kind of cooling oil cylinder | |
| CN208950531U (en) | A kind of sampling gate broken down device | |
| CN204358191U (en) | A kind of new type of safe oil drain valve | |
| CN103551283B (en) | Leaching baking finish device | |
| CN204786300U (en) | Steriliser steam generator | |
| CN204984338U (en) | Sand control blanking plug | |
| CN204556041U (en) | A kind of epithelium table non-return device | |
| CN207964258U (en) | Automobile-used excess pressure valve durability test apparatus |
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 |