CN206581925U - A kind of one-way sealing drilling well cock - Google Patents

A kind of one-way sealing drilling well cock Download PDF

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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
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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.)
Active
Application number
CN201720196266.7U
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Chinese (zh)
Inventor
任俊
陈永强
郑贝贝
李争光
郑菲菲
杨志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIYUAN HUAXIN PETROLEUM MACHINERY CO Ltd
Original Assignee
JIYUAN HUAXIN PETROLEUM MACHINERY CO Ltd
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Publication date
Application filed by JIYUAN HUAXIN PETROLEUM MACHINERY CO Ltd filed Critical JIYUAN HUAXIN PETROLEUM MACHINERY CO Ltd
Priority to CN201720196266.7U priority Critical patent/CN206581925U/en
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Publication of CN206581925U publication Critical patent/CN206581925U/en
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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

A kind of one-way sealing drilling well cock
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.
CN201720196266.7U 2017-03-02 2017-03-02 A kind of one-way sealing drilling well cock Active CN206581925U (en)

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)

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