CN107654210A - A kind of drilling well throttle type drill rod check valve - Google Patents
A kind of drilling well throttle type drill rod check valve Download PDFInfo
- Publication number
- CN107654210A CN107654210A CN201710853311.6A CN201710853311A CN107654210A CN 107654210 A CN107654210 A CN 107654210A CN 201710853311 A CN201710853311 A CN 201710853311A CN 107654210 A CN107654210 A CN 107654210A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- chest
- spring
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/05—Flapper valves
Abstract
The invention belongs to the design and manufacturing technology field of tool equipment in oil gas well development, more particularly to a kind of drilling well throttle type drill rod check valve, including valve chest, valve seat stop collar, spring, valve pocket, valve seat, valve block, valve block rotating shaft, lower contact, described valve chest front end is together by a threaded connection with lower contact, valve pocket is provided with inside valve chest, valve pocket one end offsets with valve chest interior step, the valve pocket other end then offsets with the inner face of lower contact, so as to which other inner bodies are limited in into FX；Other inner bodies include：Valve seat stop collar, spring, valve seat, valve block and valve block rotating shaft, wherein, valve seat stop collar is threadedly coupled through spring and valve pocket with valve seat；The lug of valve block is placed in the breach of valve pocket outer wall, hinged by valve block rotating shaft with the hangers of valve seat.The present invention plays interior blowout prevention in drilling process.
Description
Technical field
The invention belongs to the design and manufacturing technology field of tool equipment in oil gas well development, bored more particularly to one kind
Play the throttle type drill rod check valve of interior blowout prevention during well.
Background technology
In oilwell drilling operation, in order to prevent from occurring in drilling process altering generation gas blowout accident on oil gas, meeting on drilling rod
A single current valve gear is connected, it is currently used to have two kinds of structures of arrow type valve and plate valve.Arrow type valve, which can not provide, larger to be had
Latus rectum is imitated, the flow velocity of mud circulation is influenceed, so as to reduce its silt carrying capacity.Although board-like float valve can provide larger lead to
Footpath, but valve plate is closed by torsion spring, fluid impact valve plate is opened, easily failure.
The content of the invention
The purpose of the present invention is：Ensure that original board-like float valve has easily to fail compared with solution valve body on the basis of the advantages of big orifice
The problem of.
Solving the technical scheme that above-mentioned technical problem uses is：A kind of drilling well throttle type drill rod check valve, including valve casing
Body, valve seat stop collar, spring, valve pocket, valve seat, valve block, valve block rotating shaft and lower contact, described valve chest front end lead to lower contact
Cross and be threaded togather, valve pocket is provided with inside described valve chest, valve pocket one end offsets with valve chest interior step, valve pocket
The other end then offsets with the inner face of lower contact, so as to which other inner bodies are limited in into FX；Other inner body bags
Include：Valve seat stop collar, spring, valve seat, valve block and valve block rotating shaft, wherein, valve seat stop collar enters through spring and valve pocket with valve seat
Row threaded connection；The lug of valve block is placed in the breach of valve pocket outer wall, hinged by valve block rotating shaft with the hangers of valve seat.
Beneficial effects of the present invention：A kind of throttle type drill rod check valve that the present invention designs, it is ensured that have compared with big orifice,
The unfolding mode of throttle type can effectively reduce erosion of the fluid to sealing surface of valve plate simultaneously, and sliding sleeve adds the closing organ of thrust spring
Life-span is much larger than torsion spring closing organ, can greatly improve the service life of ball-and-seat.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings, and accompanying drawing 1 is the main structure diagram of the present invention；Accompanying drawing
2 be the sectional view A-A structural representations of the present invention.
Embodiment
Embodiment, a kind of drilling well throttle type drill rod check valve, as shown in Figures 1 and 2, including valve chest 1, valve
Seat stop collar 2, spring 3, valve pocket 4, valve seat 5, valve block 6, valve block rotating shaft 7 and lower contact 8, valve seat stop collar 2 have screw thread one end to wear
Spring 3 and the internal diameter small end of valve pocket 4 are crossed, at the big end of the internal diameter of valve pocket 4 with valve seat 5 with being threadedly coupled, compression and release spring 3 can make
Valve seat stop collar 2 and valve seat 5 slidably reciprocate in valve pocket 4.The lug of valve block 6 is placed in the breach of the outer wall of valve pocket 4, with valve seat 5
Hangers it is be hinged by valve block rotating shaft 7.Valve block 6 and valve seat 5 can carry out 90 ° of angle switches.The part of combination of the above is from valve chest 1
The big end of internal diameter loads inside valve chest 1, the internal diameter small end end face of valve pocket 4 and the interior step dieback of valve chest 1.Valve chest 1 connects with
First 8 with being threadedly coupled, and inner body is even at the cost of one's life fixed with the big end end face of the internal diameter of valve pocket 4 in the big end end face of the internal diameter of lower contact 8.Spring 3
The big end of external diameter of valve seat stop collar 2 is promoted away from the internal diameter small end of valve pocket 4, make valve seat 5 do not install valve block 6 end face and valve pocket internal diameter it is small
End stand rank contacts, and the valve block 6 being hinged with valve seat 5 moves together with valve seat 5, the lug of valve block 6 and close internal diameter on the outer wall of valve pocket 4
The breach end contact of small end is closed valve block 6.
In practical operation, during entering well, valve plate（Valve block 6）In normal off status, tube fluid passes through valve during direct circulation
Because internal diameter diminishes during seat stop collar position, produce chock pressure difference and promote the descending compression spring of valve seat stop collar, it is spacing with valve seat
Cover connection valve seat valve plate it is descending together, during valve plate lug is descending with valve pocket outer wall close to the big end of internal diameter breach end face
Contact, continues traveling downwardly lug and pries open valve plate, valve seat stop collar can limit the descending distance of valve seat, avoid the over-stressed damage of lug
It is bad.
When liquid in pipe is not in circulation, recoil of spring resets valve seat stop collar, while drives valve seat valve block multiple together
Position, reseting procedure middle valve plate lug are closed valve block with the breach end contact on valve pocket outer wall close to internal diameter small end, now flowed
Body can not be reversely at valve body by so that reach the purpose of interior blowout prevention.
Claims (1)
1. a kind of drilling well throttle type drill rod check valve, including valve chest（1）, valve seat stop collar（2）, spring（3）, valve pocket（4）、
Valve seat（5）, valve block（6）, valve block rotating shaft（7）And lower contact（8）, it is characterised in that：Described valve chest（1）Front end and lower contact
（8）It is together by a threaded connection, in described valve chest（1）Inside is provided with valve pocket（4）, valve pocket（4）One end and valve chest（1）
Interior step offsets, valve pocket（4）The other end then with lower contact（8）Inner face offset, so that other inner bodies be limited in
FX；Other inner bodies include：Valve seat stop collar（2）, spring（3）, valve seat（5）, valve block（6）With valve block rotating shaft（7）,
Wherein, valve seat stop collar（2）Through spring（3）And valve pocket（4）With valve seat（5）It is threadedly coupled；Valve block（6）Lug be placed on
Valve pocket（4）In the breach of outer wall, with valve seat（5）Hangers pass through valve block rotating shaft（7）It is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710853311.6A CN107654210A (en) | 2017-09-20 | 2017-09-20 | A kind of drilling well throttle type drill rod check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710853311.6A CN107654210A (en) | 2017-09-20 | 2017-09-20 | A kind of drilling well throttle type drill rod check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107654210A true CN107654210A (en) | 2018-02-02 |
Family
ID=61129735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710853311.6A Pending CN107654210A (en) | 2017-09-20 | 2017-09-20 | A kind of drilling well throttle type drill rod check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654210A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302574A (en) * | 2020-12-04 | 2021-02-02 | 西南石油大学 | Large-drift-diameter blowout-preventing back-pressure valve in hinge type drill column |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030121665A1 (en) * | 2001-11-30 | 2003-07-03 | Douglas Trott | Closure mechanism with integrated actuator for subsurface valves |
| US20040060704A1 (en) * | 2002-09-30 | 2004-04-01 | Layton Ben C. | Flapper closure mechanism |
| US20070204999A1 (en) * | 2004-01-23 | 2007-09-06 | Cleveland Clinic Foundation, The | Completion Suspension Valve System |
| US20070246225A1 (en) * | 2006-04-20 | 2007-10-25 | Hailey Travis T Jr | Well tools with actuators utilizing swellable materials |
| CN101956540A (en) * | 2009-07-15 | 2011-01-26 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Novel drill rod valve |
| US20110088907A1 (en) * | 2009-10-15 | 2011-04-21 | Baker Hughes Incorporated | Flapper valve and method |
| CN102400662A (en) * | 2011-11-21 | 2012-04-04 | 中国海洋石油总公司 | Pluggable oil-layer anti-leakage valve |
| CN102720464A (en) * | 2012-07-04 | 2012-10-10 | 湖南唯科拓石油科技服务有限公司 | Subsurface safety valve |
| CN202531107U (en) * | 2012-04-25 | 2012-11-14 | 牡丹江鑫北方石油钻具有限责任公司 | Sliding bush-type flap float valve |
| CN103821477A (en) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | Self-balancing downhole safety valve |
| CN203822259U (en) * | 2014-04-22 | 2014-09-10 | 中国海洋石油总公司 | Safety control tool for oil pipe of thermal production well |
| CN104154248A (en) * | 2014-08-14 | 2014-11-19 | 中科金佳（北京）油田技术开发有限公司 | Repeatedly opened and closed anti-leakage valve with cylindrical panel valve sealing structure |
| CN204041006U (en) * | 2014-09-23 | 2014-12-24 | 大庆市永晨石油科技有限公司 | Hydraulic pressure well bore isolation valve |
| CN104314519A (en) * | 2014-10-28 | 2015-01-28 | 北京博德世达石油技术股份有限公司 | Buffering mechanism for valve plate of underground safety valve |
| CN105003228A (en) * | 2015-08-11 | 2015-10-28 | 荆州市赛瑞能源技术有限公司 | Hydraulically-controlled underground check valve capable of being opened/closed repeatedly |
| US20170226823A1 (en) * | 2015-09-15 | 2017-08-10 | Halliburton Energy Services, Inc. | Dual torsion springs flapper valve closure mechanism |
-
2017
- 2017-09-20 CN CN201710853311.6A patent/CN107654210A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030121665A1 (en) * | 2001-11-30 | 2003-07-03 | Douglas Trott | Closure mechanism with integrated actuator for subsurface valves |
| US20040060704A1 (en) * | 2002-09-30 | 2004-04-01 | Layton Ben C. | Flapper closure mechanism |
| US20070204999A1 (en) * | 2004-01-23 | 2007-09-06 | Cleveland Clinic Foundation, The | Completion Suspension Valve System |
| US20070246225A1 (en) * | 2006-04-20 | 2007-10-25 | Hailey Travis T Jr | Well tools with actuators utilizing swellable materials |
| CN101956540A (en) * | 2009-07-15 | 2011-01-26 | 中国石油集团西部钻探工程有限公司克拉玛依钻井工艺研究院 | Novel drill rod valve |
| US20110088907A1 (en) * | 2009-10-15 | 2011-04-21 | Baker Hughes Incorporated | Flapper valve and method |
| CN102400662A (en) * | 2011-11-21 | 2012-04-04 | 中国海洋石油总公司 | Pluggable oil-layer anti-leakage valve |
| CN202531107U (en) * | 2012-04-25 | 2012-11-14 | 牡丹江鑫北方石油钻具有限责任公司 | Sliding bush-type flap float valve |
| CN102720464A (en) * | 2012-07-04 | 2012-10-10 | 湖南唯科拓石油科技服务有限公司 | Subsurface safety valve |
| CN103821477A (en) * | 2014-03-17 | 2014-05-28 | 中国石油大学(华东) | Self-balancing downhole safety valve |
| CN203822259U (en) * | 2014-04-22 | 2014-09-10 | 中国海洋石油总公司 | Safety control tool for oil pipe of thermal production well |
| CN104154248A (en) * | 2014-08-14 | 2014-11-19 | 中科金佳（北京）油田技术开发有限公司 | Repeatedly opened and closed anti-leakage valve with cylindrical panel valve sealing structure |
| CN204041006U (en) * | 2014-09-23 | 2014-12-24 | 大庆市永晨石油科技有限公司 | Hydraulic pressure well bore isolation valve |
| CN104314519A (en) * | 2014-10-28 | 2015-01-28 | 北京博德世达石油技术股份有限公司 | Buffering mechanism for valve plate of underground safety valve |
| CN105003228A (en) * | 2015-08-11 | 2015-10-28 | 荆州市赛瑞能源技术有限公司 | Hydraulically-controlled underground check valve capable of being opened/closed repeatedly |
| US20170226823A1 (en) * | 2015-09-15 | 2017-08-10 | Halliburton Energy Services, Inc. | Dual torsion springs flapper valve closure mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302574A (en) * | 2020-12-04 | 2021-02-02 | 西南石油大学 | Large-drift-diameter blowout-preventing back-pressure valve in hinge type drill column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |
|
| RJ01 | Rejection of invention patent application after publication |