CN206581925U - A kind of one-way sealing drilling well cock - Google Patents
A kind of one-way sealing drilling well cock Download PDFInfo
- Publication number
- CN206581925U CN206581925U CN201720196266.7U CN201720196266U CN206581925U CN 206581925 U CN206581925 U CN 206581925U CN 201720196266 U CN201720196266 U CN 201720196266U CN 206581925 U CN206581925 U CN 206581925U
- Authority
- CN
- China
- Prior art keywords
- seat
- main
- cock
- drilling well
- honour
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 210000000088 Lip Anatomy 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 10
- 230000002708 enhancing Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model is related to a kind of one-way sealing drilling well cock, cock can effectively be solved in the presence of high pressure, by hand the problem of the work of energy normal switch, technical scheme is, including main body, main body is hollow columnar structures, body side is provided with the handle hole of inside and outside insertion, operation swing arm of the handle hole built with rotation, body lumen is stretched on the inside of operation swing arm, the one end stretched into is equipped with the valve ball by rotating the sealing of control body lumen and conducting, the both sides up and down of valve ball are equipped with the seat of honour of extruding clamping valve ball and lower seat after being pressurized in main body, lip the first y-type seal ring directed downwardly is housed between seat of honour outer wall and main body inner wall, the second y-type seal ring of lip upward is housed between lower seat outer wall and main body inner wall, cock switching capability in the utility model enhancing drilling process, enhance security, improve the switch efficiency of cock, solve the difficult problem of execute-in-place, improve the service life of cock, reduce the generation of drilling well underground engineering accident.
Description
Technical field
The utility model, which is related to the drilling well cock used in petroleum drilling engineering, particularly one kind, in a high voltage state can
Continue using the one-way sealing drilling well cock manually opened.
Background technology
During wellbore construction, bore often and meet high pressure formation, to prevent formation fluid from being sprayed from underground, in emergency circumstances
It is general to take closing drilling rod cock, cut off underground fluid passage, but fluid pressure with the continuous immersion of formation fluid constantly on
Rise, when pressure rises to more than 20Mpa, manual switch cock can not be completed, only using that could be opened after release, therefore,
It is imperative that it improves and innovated.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the utility model is just to provide a kind of one-way sealing
Drilling well cock is sealed, cock can be effectively solved in the presence of high pressure, by hand the work of energy normal switch, the actual need in scene are met
Ask, improve the problem of it is using security context and production work efficiency.
The technical scheme that the utility model is solved is, a kind of one-way sealing drilling well cock, including main body, and main body is hollow posts
Shape structure, body side is provided with the handle hole of inside and outside insertion, and handle hole is built with the operation swing arm of rotation, and operation swing arm inner side is stretched
Enter body lumen, the one end stretched into, which is equipped with, passes through the valve ball that rotation controls body lumen sealing and conducting, and valve ball is upper in main body
Lower both sides are directed downwardly equipped with lip between seat of honour outer wall and main body inner wall equipped with the seat of honour of extruding clamping valve ball and lower seat after being pressurized
First y-type seal ring, is equipped with the second y-type seal ring of lip upward between lower seat outer wall and main body inner wall.
The locating ring or limited step of the built-in restricted seat of honour upward stroke of main body above the described seat of honour；Under described
The locating ring or limited step of the built-in restricted lower seat downward stroke of main body below seat.
The utility model unique structure, advantages of simple, easily production, cost is low, easy to operate, the cock in enhancing drilling process
Switching capability, enhances security, improves the switch efficiency of cock, solves the difficult problem of execute-in-place, improves rotation
The service life of plug, reduces the generation of drilling well underground engineering accident, and easy to use, effect is good, is the innovation in drilling well cock.
Brief description of the drawings
Fig. 1 is semi-cutaway of the present utility model.
Embodiment
Embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing.
Provided by Fig. 1, the utility model includes main body 1, main body is hollow columnar structures, and the side of main body 1 is provided with inside and outside pass through
Logical handle hole, handle hole operates the inner side of swing arm 6 to stretch into body lumen built with the operation swing arm 6 of rotation, one end dress stretched into
There are the both sides up and down of valve ball 5 in the valve ball 5 that body lumen sealing and conducting are controlled by rotating, main body equipped with extruding folder after being pressurized
The seat of honour 4 of valve ball and lower seat 7 are held, lip the first y-type seal ring 3a directed downwardly is housed between the outer wall of the seat of honour 4 and main body inner wall, under
The the second y-type seal ring 3b of lip upward is housed between 7 outer walls of seat and main body inner wall.
To ensure the locating ring 2a of the built-in restricted seat of honour upward stroke of main body above using effect, the described seat of honour 4
Or limited step；The locating ring or limited step 2b of the built-in restricted lower seat downward stroke of main body of the described lower section of lower seat 7.
The described center of valve ball 5 is provided with the through hole 5a that fluid passes through during for conducting.
It is provided with the outer wall at the described seat of honour 4 outside the first mounting groove for installing the first y-type seal ring 3a, lower seat 7
The first mounting groove for installing the second y-type seal ring 3b is provided with wall.
The driving hole 6a for operating rotation process swing arm, convenient couple are provided with the outer face of described operation swing arm 6
Swing arm is operated to carry out rotation process.
The upper and lower ends of described main body 1 are provided with the thread segment for connection.
The utility model is in use, main body is connected with drill string, and when normally creeping into, the liquid in drill string passes through valve ball center
Through hole, when drill bit gets into high pressure zone, in formation fluid immersion pit shaft, and got into drill string, when Fluid pressure is higher than drill string
Interior fluid pressure, formation fluid is counter upwards to be gushed, and at this moment needs to close drill string passage, underground using manual tools' rotation process swing arm
Pressure can form high pressure on valve ball, due to being equipped with lip the first y-type seal ring directed downwardly between the outer wall of the seat of honour 4 and main body inner wall
3a, is equipped with the second y-type seal ring 3b of lip upward between the lower outer wall of seat 7 and main body inner wall, so that main body 1 and the seat of honour 4, lower seat
One-way sealing is formed between 7, when highly pressurised liquid occurs in top, valve ball 5 is sealed with the formation of lower seat 7 under pressure, high pressure
Liquid flows through the first y-type seal ring 3a, due to lip down, and liquid heats Y types labial surface is to contract, downward liquid flow,
Above and below one y-type seal ring 3a keeps pressure balance, the descending clamping valve ball 5 in the seat of honour 4 will not be promoted because of sealing, only unilateral pressure can
Artificial normal operating operation swing arm 6 is switched, and when highly pressurised liquid occurs in lower section, valve ball 5 forms close with the seat of honour 4 under pressure
Envelope, highly pressurised liquid flows through the second y-type seal ring, due to lip upward, and liquid heats Y types labial surface is to contract, and liquid is to upstream
It is dynamic, pressure balance is kept above and below the second y-type seal ring, the descending clamping valve ball 5 in the seat of honour 4, only one side pressure will not be promoted because of sealing,
Manually normal operating operation swing arm 6 it can switch.That is, when needing to carry out kill-job work, can be using manual tools' operation
Swing arm opens drill string passage, carries out kill-job operation, solves the problem of can not opening in the past, improve the security of instrument, prolong
Service life is grown, easy to use, effect is good, is the innovation on plug valve, there is good social and economic benefit.
Claims (7)
1. a kind of one-way sealing drilling well cock, including main body（1）, main body is hollow columnar structures, main body（1）Side is provided with inside and outside
The handle hole of insertion, operation swing arm of the handle hole built with rotation（6）, operate swing arm（6）Body lumen is stretched into inner side, stretches into
One end is equipped with the valve ball by rotating the sealing of control body lumen and conducting（5）, it is characterised in that valve ball in main body（5）It is upper
The seat of honour of the lower both sides equipped with extruding clamping valve ball after being pressurized（4）With lower seat（7）, the seat of honour（4）It is equipped between outer wall and main body inner wall
Lip the first y-type seal ring directed downwardly（3a）, lower seat（7）It is close equipped with the 2nd Y types of lip upward between outer wall and main body inner wall
Seal（3b）.
2. one-way sealing drilling well cock according to claim 1, it is characterised in that the described seat of honour（4）The main body of top
The locating ring of built-in restricted seat of honour upward stroke（2a）Or limited step.
3. one-way sealing drilling well cock according to claim 1, it is characterised in that described lower seat（7）The main body of lower section
The locating ring or limited step of built-in restricted lower seat downward stroke（2b）.
4. one-way sealing drilling well cock according to claim 1, it is characterised in that described valve ball（5）Center is provided with confession
The through hole that fluid passes through during conducting（5a）.
5. one-way sealing drilling well cock according to claim 1, it is characterised in that the described seat of honour（4）Outer wall on open
Have for installing the first y-type seal ring（3a）The first mounting groove, lower seat（7）Outer wall on be provided with for install the 2nd Y types it is close
Seal（3b）The first mounting groove.
6. one-way sealing drilling well cock according to claim 1, it is characterised in that described operation swing arm（6）Outer end
The driving hole for operating rotation process swing arm is provided with face（6a）.
7. one-way sealing drilling well cock according to claim 1, it is characterised in that described main body（1）Upper and lower ends
It is provided with the thread segment for connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196266.7U CN206581925U (en) | 2017-03-02 | 2017-03-02 | A kind of one-way sealing drilling well cock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720196266.7U CN206581925U (en) | 2017-03-02 | 2017-03-02 | A kind of one-way sealing drilling well cock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581925U true CN206581925U (en) | 2017-10-24 |
Family
ID=60092488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720196266.7U Active CN206581925U (en) | 2017-03-02 | 2017-03-02 | A kind of one-way sealing drilling well cock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206581925U (en) |
-
2017
- 2017-03-02 CN CN201720196266.7U patent/CN206581925U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |