CN201144666Y - Blowout-preventing double-functional valve in oil pipe - Google Patents
Blowout-preventing double-functional valve in oil pipe Download PDFInfo
- Publication number
- CN201144666Y CN201144666Y CNU2007201872417U CN200720187241U CN201144666Y CN 201144666 Y CN201144666 Y CN 201144666Y CN U2007201872417 U CNU2007201872417 U CN U2007201872417U CN 200720187241 U CN200720187241 U CN 200720187241U CN 201144666 Y CN201144666 Y CN 201144666Y
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- valve
- valve cover
- oil
- cover
- ball
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Abstract
The utility model relates to a blowout-proof double-acting valve arranged in an oil tube used in the oil well snubbing workover. A pressing coupling is connected with a lower valve cover by threads; and a lower valve base is tightly pressed in the shoulder of the pressing coupling and the lower valve cover. A lower valve ball is arranged in the lower valve base and can move upwards freely in one direction. A pressing ring, a damper and an upper valve base are pressed tightly in the shoulder of the lower valve cover and an upper valve cover. An upper valve ball is pressed tightly between the damper and the upper valve base and moves downwards under the effect of force in one direction; the upper valve cover and the lower valve cover are connected with each other by threads. A thimble is arranged at the place of an oil hole arranged in the inner cavity of the upper valve cover and can move downwards under the effect of force in one direction; and the needle part of the thimble passes through the upper valve base and acts on the upper valve ball. An upper contact and the pressing coupling are respectively connected with a deep-well pump barrel and devices arranged under the pump by threads. When the oil tube is placed down, fluid in an oil well can not enter into the oil tube under the effect of the upper valve ball and the upper valve ball base, thereby realizing the blowout resistance in the oil tube; when a oil rod is pulled downwards, the lower valve can be used as a fixing valve and the oil well is in normal production.
Description
Technical field:
The utility model relates to blowout prevention double acting valve in a kind of not kill-job of oil well workover treatment oil pipe.
Background technology:
At present, most of workover rig service to oil well, on need to carry out kill-job before repairing, involve a large amount of corollary equipments and guarantee that influence job scheduling, wasteful amount well killing fluid damages oil reservoir easily.
In the middle of following oil pipe and the beam hanger process, the ground pollution that causes mainly is that overflow and the interior overflow of oil pipe that oil, the ring-like space of cover exist causes.
" not kill-job of oil well workover treatment technology " is to use oil water well working with pressure principle and technology, be used supporting double acting valve, waterpower environmental protection and energy saving bleeder, oil pipe frizing blowout hookup, beam hanger frizing blowout hookup etc., realize the oil well snubbing serving." blowout prevention technology in the oil pipe " is exactly a technology ingredient of " not kill-job of oil well workover treatment technology ", mainly solves in the middle of following oil pipe and beam hanger process the overflow problem that exists in the oil pipe.
The utility model content
The purpose of this utility model is a blowout prevention double acting valve in a kind of oil pipe of design, this equipment is connected under the pump, replaces former pump standing valve, in the middle of the following oil pipe process, liquid can't enter oil pipe in the well under the effect of last valve ball and last valve ball seat, realizes blowout prevention in the oil pipe; Sucker rod is opened valve after having descended, and following valve operate as normal is identical with the effect of former pump standing valve, realizes the ordinary production of oil well.
In the oil pipe described in the utility model blowout prevention double acting valve comprise top connection, thimble, go up the valve cover, down the valve cover, compress box cupling, down valve seat, down valve ball, hold-down ring, catch, go up valve seat, go up valve ball, oil-through hole; It is characterized in that: compress box cupling and the screwed connection of following valve cover; Following valve seat is pressed in and compresses in box cupling and the following valve cover shoulder; Following valve ball seat becomes unidirectional up free movement state in following valve seat; Hold-down ring, catch, last valve seat are pressed in down in valve cover and the last valve cover shoulder; Last valve ball is pressed between catch and the last valve seat, becomes unidirectional descending stressed active state; Following valve cover and last valve cover are screwed connection; Thimble is positioned at valve cover inner chamber oil-through hole place, can be in last valve cover inner chamber stress unilateral descending, and pin portion can pass the valve seat active force on last valve ball, top connection with compress box cupling respectively with deep-well pump barrel and the screwed connection of pump lower device.
According to feature one, this device is connected under the pump, replaces former pump standing valve.In the middle of the following oil pipe process, liquid can't enter oil pipe in the well under the effect of last valve ball and last valve ball seat, realizes blowout prevention in the oil pipe; During lower sucker rod, when piston during down to the thimble position, bump pump, the descending top of thimble is hit valve ball and is fallen to down in the valve cover by catch, at this moment, following valve operate as normal, identical with former standing valve effect, realize the ordinary production of oil well.
Description of drawings:
Blowout prevention double acting valve structural representation in Fig. 1 oil pipe
Wherein: 1, top connection; 2, thimble; 3, go up the valve cover; 4, following valve cover; 5, compress box cupling; 6, following valve seat; 7, following valve ball; 8, hold-down ring; 9, catch; 10, go up valve seat; 11, go up valve ball; 12, oil-through hole.
The specific embodiment
With reference to the accompanying drawings blowout prevention double acting valve structure in the oil pipe described in the utility model is illustrated below.
The double acting valve comprises top connection 1; Thimble 2; Last valve cover 3; Following valve cover 4; Compress box cupling 5; Following valve seat 6; Following valve ball 7; Hold-down ring 8; Catch 9; Last valve seat 10; Last valve ball 11; Oil-through hole 12.
Compress box cupling 5 and following valve cover 4 screwed connections; Following valve seat 6 is pressed in and compresses in box cupling 5 and following valve cover 4 shoulders; 7 of following valve balls become unidirectional up free movement state in valve seat 6 down; Hold-down ring 8, catch 9, last valve seat 10 are pressed in down in valve cover 4 and last valve cover 3 shoulders; Last valve ball 11 is pressed between catch 9 and the last valve seat 10, becomes unidirectional descending stressed active state; Following valve cover 4 is screwed connection with last valve cover 3; Thimble is positioned at valve cover inner chamber oil-through hole 12 places, thimble 2 can be in last valve cover 3 inner chambers stress unilateral descending, and valve seat 10 active forces can pass on last valve ball 11 in pin portion, top connection 1 with compress box cupling 5 respectively with deep-well pump barrel and the screwed connection of pump lower device.
Claims (1)
1. blowout prevention double acting valve in the oil pipe, comprise top connection, thimble, go up the valve cover, down the valve cover, compress box cupling, down valve seat, down valve ball, hold-down ring, catch, go up valve seat, go up valve ball, oil-through hole, it is characterized in that: compress box cupling and the screwed connection of following valve cover; Following valve seat is pressed in and compresses in box cupling and the following valve cover shoulder; Following valve ball seat becomes unidirectional up free movement state in following valve seat; Hold-down ring, catch, last valve seat are pressed in down in valve cover and the last valve cover shoulder; Last valve ball is pressed between catch and the last valve seat, becomes unidirectional descending stressed active state; Following valve cover and last valve cover are screwed connection; Thimble is positioned at valve cover inner chamber oil-through hole place, can be in last valve cover inner chamber stress unilateral descending, and pin portion can pass the valve seat active force on last valve ball, top connection with compress box cupling respectively with deep-well pump barrel and the screwed connection of pump lower device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872417U CN201144666Y (en) | 2007-12-19 | 2007-12-19 | Blowout-preventing double-functional valve in oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201872417U CN201144666Y (en) | 2007-12-19 | 2007-12-19 | Blowout-preventing double-functional valve in oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144666Y true CN201144666Y (en) | 2008-11-05 |
Family
ID=40081542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201872417U Expired - Fee Related CN201144666Y (en) | 2007-12-19 | 2007-12-19 | Blowout-preventing double-functional valve in oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144666Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507822A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Downhole tube for coil coupling control of electromagnetic valve |
-
2007
- 2007-12-19 CN CNU2007201872417U patent/CN201144666Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507822A (en) * | 2014-09-27 | 2016-04-20 | 中国石油化工集团公司 | Downhole tube for coil coupling control of electromagnetic valve |
| CN105507822B (en) * | 2014-09-27 | 2017-11-21 | 中国石油化工集团公司 | A kind of underground pipe of coil coupling control magnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |