CN2926489Y - Underwell safety valve - Google Patents
Underwell safety valve Download PDFInfo
- Publication number
- CN2926489Y CN2926489Y CN 200620119671 CN200620119671U CN2926489Y CN 2926489 Y CN2926489 Y CN 2926489Y CN 200620119671 CN200620119671 CN 200620119671 CN 200620119671 U CN200620119671 U CN 200620119671U CN 2926489 Y CN2926489 Y CN 2926489Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- spring
- flap
- sliding sleeve
- urceolus
- 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.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to a downhole safety valve. Through the ground pressure, a push rod (5) pushes a nut (6), a fixed block (7), a stop ring (9) and a stop block (10) to move downward under the force of hydraulic pressure, and meanwhile a spring (8) and a compressing spring (11) are compressed. After a certain movement, the stop ring (9) matching the steps of an inner sliding sleeve (12) pushes the inner sliding sleeve to move downward simultaneously. When the inner sliding sleeve moves to the place of a valve flap (16), the valve flap is pushed aside and is in an open state, and a hold pressure state is kept. When the ground equipments of the oil-gas well break down and the pressure is leaked, the stop block can make the inner sliding sleeve reset which is under the force of the spring (8) and the compressing spring (11), and the valve flap resets under the force of a torsion spring (14) and is sealed with a valve body (13) for losing the support of the external machinery. The utility model has a liquid flow channel on the upper external tube, which are connected with each other by hydraulic pipelines, controlling the open and close of the valve flap, with the advantages of simple structure, high stability and low production cost.
Description
Technical field
The utility model relates to the downhole tool that a kind of oil exploitation is used, and particularly a kind of storm valve belongs to the downhole tool class.
Background technology
In high-pressure oil-gas well operation process, its ground installation may destroy because of meeting with all unpredictable external condition influences, in such cases, if can not be timely with the pathway closure between underground high-voltage oil gas and the ground, not only can pollute and destroy the oil well surrounding enviroment, What is more can cause personal injury to staff and other related personnel of periphery, and this kind situation has become major safety risks.At present, external storm valve is difficult in the oil-gas field of China and carries out good application because of being subjected to the influence of its price.And its reliability of homemade safety valve be cannot say for sure to demonstrate,prove, and can't realize the protection to the oil gas well fully.Therefore, this kind potential safety hazard still extensively exists.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, storm valve that reliability is high.
The utility model mainly is made up of top connection 1, pipe joint 2, last urceolus 3, body 4, push rod 5, nut 6, fixed block 7 etc., top connection 1, last urceolus 3, body 4, following urceolus 17, lower contact 18 are threaded successively, last urceolus 3 has fluid course and is communicated with its inner chamber, pipe joint 2 is equipped with in the fluid course outlet, and the last urceolus 3 inner chamber conical surfaces and body 4 upper end male cone (strobilus masculinus)s are matched in clearance; Body 4 has an axially extending bore, and push rod 5 is housed in it, and through hole and push rod 5 adopt matched in clearance; Spring 8, compression spring 11, valve body 13 all are sleeved on the inner sliding sleeve 12, in the annular space of spring 8 between baffle ring 9 and block 10, in the annular space of compression spring 11 between baffle ring 10 and valve body 13; Following urceolus 17 inner chambers have step and inner groovy; Flap 16 is connected on the valve body 13 by bearing pin 15, and torsionspring 14 is sleeved on the bearing pin 15, and two ends are separately fixed at valve body 13 and flap 16; There is half groove appropriate location, valve body 13 bottom, and valve body 13 inner chambers have groove, and flap 16 is positioned at groove, the just suitable formation sealing of the axial cross section edge shape of flap 16 and valve body 13 groove surfaces.
The utility model has fluid course at last urceolus 3, and is coupled by hydraulic line, and the open and close of control flap 16 have characteristics simple in structure, that reliability is high, with low cost.
Description of drawings
Fig. 1 the utility model structural representation
The specific embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in drawings, the utility model is mainly by mainly being made up of top connection 1, pipe joint 2, last urceolus 3, body 4, push rod 5 etc., top connection 1, last urceolus 3, body 4, following urceolus 17, lower contact 18 are threaded successively, last urceolus 3 has fluid course and is communicated with its inner chamber, pipe joint 2 is equipped with in the fluid course outlet, and the last urceolus 3 inner chamber conical surfaces and body 4 upper end male cone (strobilus masculinus)s are matched in clearance; Body 4 has an axially extending bore, and push rod 5 is housed in it, and through hole and push rod 5 adopt matched in clearance; Spring 8, compression spring 11, valve body 13 all are sleeved on the inner sliding sleeve 12, in the annular space of spring 8 between baffle ring 9 and block 10, in the annular space of compression spring 11 between baffle ring 10 and valve body 13; Following urceolus 17 inner chambers have step and inner groovy; Flap 16 is connected on the valve body 13 by bearing pin 15, and torsionspring 14 is sleeved on the bearing pin 15, and two ends are separately fixed at valve body 13 and flap 16; There is half groove appropriate location, valve body 13 bottom, and valve body 13 inner chambers have groove, and flap 16 is positioned at groove, the just suitable formation sealing of the axial cross section edge shape of flap 16 and valve body 13 groove surfaces.
During use, appropriate location at oil pipe or production string connects the utility model, and be connected to ground by the hydraulic control pipeline, in the normal productive process of oil gas well, suppress by ground, push rod 5 is under the effect of hydraulic pressure, and promotion nut 6, fixed block 7, baffle ring 9, block 10 move down, and compresses spring 8 and compression spring 11 simultaneously.When it moved a certain distance, baffle ring 9 matched with inner sliding sleeve 12 steps, and promoted it and together move down with it.When inner sliding sleeve 12 moves to flap 16 positions, it is pushed open, keep the ground state that builds the pressure, make flap 16 be in normally open.After oil gas well ground installation was damaged, by the ground installation pressure release, inner sliding sleeve 12 was under the acting in conjunction of spring 8 and compression spring 11, block 10 can make it reset, flap 16 resets under the effect of torsionspring 14 because of losing extraneous mechanical support, and forms sealing with valve body 13.
Claims (1)
1, a kind of storm valve, mainly form by top connection (1), pipe joint (2), last urceolus (3), body (4), push rod (5), nut (6), fixed block (7) etc., top connection (1), last urceolus (3), body (4), following urceolus (17), lower contact (18) are threaded successively, it is characterized in that: last urceolus (3) has fluid course and is communicated with its inner chamber, pipe joint (2) is equipped with in the fluid course outlet, and last urceolus (3) the inner chamber conical surface and body (4) upper end male cone (strobilus masculinus) are matched in clearance; Body (4) has an axially extending bore, and push rod (5) is housed in it, and through hole and push rod (5) adopt matched in clearance; Spring (8), compression spring (11), valve body (13) all are sleeved on the inner sliding sleeve (12), and spring (8) is positioned at the annular space between baffle ring (9) and the block (10), and compression spring (11) is positioned at the annular space between baffle ring (10) and the valve body (13); Following urceolus (17) inner chamber has step and inner groovy; Flap (16) is connected on the valve body (13) by bearing pin (15), and torsionspring (14) is sleeved on the bearing pin (15), and two ends are separately fixed at valve body (13) and flap (16); There is half groove valve body (13) appropriate location, bottom, and valve body (13) inner chamber has groove, and flap (16) is positioned at groove, the just suitable formation sealing of the axial cross section edge shape of flap (16) and valve body (13) groove surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119671 CN2926489Y (en) | 2006-06-06 | 2006-06-06 | Underwell safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119671 CN2926489Y (en) | 2006-06-06 | 2006-06-06 | Underwell safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926489Y true CN2926489Y (en) | 2007-07-25 |
Family
ID=38280733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620119671 Expired - Lifetime CN2926489Y (en) | 2006-06-06 | 2006-06-06 | Underwell safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926489Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839117A (en) * | 2010-04-21 | 2010-09-22 | 中国石油化工股份有限公司 | Annulus safety valve |
| CN104747117A (en) * | 2013-12-25 | 2015-07-01 | 中国石油化工股份有限公司 | Underground blowout prevention device |
-
2006
- 2006-06-06 CN CN 200620119671 patent/CN2926489Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839117A (en) * | 2010-04-21 | 2010-09-22 | 中国石油化工股份有限公司 | Annulus safety valve |
| CN101839117B (en) * | 2010-04-21 | 2014-04-02 | 中国石油化工股份有限公司 | Annulus safety valve |
| CN104747117A (en) * | 2013-12-25 | 2015-07-01 | 中国石油化工股份有限公司 | Underground blowout prevention device |
| CN104747117B (en) * | 2013-12-25 | 2018-07-17 | 中国石油化工股份有限公司 | A kind of underground blow-out preventing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |