CN203321405U - Sucker rod blowout preventer - Google Patents

Sucker rod blowout preventer Download PDF

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Publication number
CN203321405U
CN203321405U CN2013203884838U CN201320388483U CN203321405U CN 203321405 U CN203321405 U CN 203321405U CN 2013203884838 U CN2013203884838 U CN 2013203884838U CN 201320388483 U CN201320388483 U CN 201320388483U CN 203321405 U CN203321405 U CN 203321405U
Authority
CN
China
Prior art keywords
blowout
sucker rod
pipe nipple
blowout prevention
coupling
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 - Fee Related
Application number
CN2013203884838U
Other languages
Chinese (zh)
Inventor
李霞
牟圆圆
史奉军
袁建贞
游君
张乐
王月华
刘洪美
庞军
李新波
Original Assignee
李霞
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 李霞 filed Critical 李霞
Priority to CN2013203884838U priority Critical patent/CN203321405U/en
Application granted granted Critical
Publication of CN203321405U publication Critical patent/CN203321405U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a sucker rod blowout preventer, comprising a blowout preventing pipe nipple, a blowout preventing coupling body and a sucker rod pipe nipple, wherein the blowout preventing coupling body is connected with the sucker rod pipe nipple and encircles the periphery of the sucker rod pipe nipple; the blowout preventing coupling body is arranged in an inner cavity of the blowout preventing pipe nipple; and the outer diameter of the blowout preventing coupling body is slightly greater than the inner diameter of the blowout preventing pipe nipple. The sucker rod blowout preventer is simple to operate, safe in performance and quick in blowout prevention, can solve the problem of blowout prevention by using large-diameter tools such as lifting, low bias pipe nipple grinding tools and the like, and can achieve auxiliary functions of circularly washing a well and a pressure test device and observing pressure changes in the well.

Description

A kind of blowout preventer for sucker rod
Technical field
The utility model relates to a kind of blowout preventer for sucker rod.
Background technology
In prior art, at present when putting sucker rod, the 250 model gate is installed on upper flange, if well kick occurs, seat polished rod and open flow box, front band fit sealing.If the generation blowout, have little time a polished rod, take to lose bar, lose closed-in well port strobe after bar.
Weak point:
A, installation polished rod and open flow box are relatively wasted time and energy, and polished rod is longer, and the annex on polished rod is more, upper button difficulty.Complex operation, waste time and energy, and often owing to robbing dress, pollutes not in time accident.
B, take to lose the bar mode, easily the oil pipe bullet in well is fallen, cause complicated the salvaging.
C, for there being Φ 25mm sucker rod partial wear to save ancient well in well, because Φ 25mm sucker rod partial wear saves the interior latus rectum that ancient diameter is greater than the 250 model gate, eccentric wear joint Gu can't pass through.
Lower beam after d, pressure testing, the liquid spill in oil pipe, the uncontrollable flow direction, cause the muddy and environment pollution of well head, increased unsafe factor.
E, because the blowout preventer upper end can't directly provide continuing surface to rod elevator, can only provide continuing surface to elevator by tubing nipple, lose bar, oil pipe shackle after blowout all more loaded down with trivial details, time-consuming.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of blowout preventer for sucker rod.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of blowout preventer for sucker rod comprises blowout prevention nipple, blowout prevention coupling body, sucker rod substitute; The blowout prevention coupling body is connected and is enclosed in the periphery of sucker rod substitute with sucker rod substitute; The blowout prevention coupling body is placed in the blowout prevention nipple inner chamber.
As preferably, the external diameter of blowout prevention coupling body is slightly larger than the internal diameter of blowout prevention nipple.
The beneficial effects of the utility model are:
A, simple to operate, performance safety, the system spray is rapidly.
The problem of the major diameter instrument blowout preventions such as b, solution are carried, lower eccentric wear joint is ancient.
C, the miscellaneous function that can reach circulation well cleanup, pressure testing device and observe the borehole pressure variation.
This covering device can be controlled well head within 2 minutes 05 second time, put forward the sucker rod process in underground work and played crucial effect, be applicable to the various operating modes of actuating oil-pumping unit, as instruments such as large diameter paraffin scraper, oil pumping rod centering devices, can effectively solve the major diameter instrument and can not pass through the drawback of 250 gates.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model blowout preventer for sucker rod embodiment.
In figure, 1-sucker rod substitute, 2-blowout prevention coupling body, 3-blowout prevention nipple.
The specific embodiment
Fig. 1 is a kind of blowout preventer for sucker rod, comprises blowout prevention nipple 3, blowout prevention coupling body 2, sucker rod substitute 1.Blowout prevention coupling body 2 and sucker rod substitute 1 are connected and are enclosed in the periphery of sucker rod substitute; Blowout prevention coupling body 3 is placed in the inner chamber of blowout prevention nipple 2, and the external diameter of blowout prevention coupling body is slightly larger than the internal diameter of blowout prevention nipple.
In the job execution process, if overflow or blowout occur, the site operation personnel only need be connected to the blowout prevention coupling body on the well head sucker rod, transfer the blowout prevention coupling body, and blowout prevention coupling body external diameter is slightly larger than blowout prevention nipple internal diameter seat in the blowout prevention nipple inner chamber, pours out lifting sub.Now, the site operation personnel only carry out completing the sealing well head according to the program of robbing charge of oil pipe plug valve.The sealing uphole time foreshortened to 2 minutes and 5 seconds by 4 minutes and 10 seconds.Also can carry out circulation well cleanup after sealing in addition well head.
Above-described the utility model embodiment, do not form the restriction to the utility model protection domain.Any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.

Claims (2)

1. a blowout preventer for sucker rod, is characterized in that: comprise blowout prevention nipple, blowout prevention coupling body, sucker rod substitute; Described blowout prevention coupling body is connected and is enclosed in the periphery of sucker rod substitute with sucker rod substitute; Described blowout prevention coupling body is placed in the blowout prevention nipple inner chamber.
2. blowout preventer for sucker rod according to claim 1, it is characterized in that: the external diameter of described blowout prevention coupling body is slightly larger than the internal diameter of blowout prevention nipple.
CN2013203884838U 2013-06-25 2013-06-25 Sucker rod blowout preventer Expired - Fee Related CN203321405U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203884838U CN203321405U (en) 2013-06-25 2013-06-25 Sucker rod blowout preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203884838U CN203321405U (en) 2013-06-25 2013-06-25 Sucker rod blowout preventer

Publications (1)

Publication Number Publication Date
CN203321405U true CN203321405U (en) 2013-12-04

Family

ID=49660768

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203884838U Expired - Fee Related CN203321405U (en) 2013-06-25 2013-06-25 Sucker rod blowout preventer

Country Status (1)

Country Link
CN (1) CN203321405U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587284A (en) * 2014-11-17 2016-05-18 中国石油天然气股份有限公司 Wellhead blowout prevention device of rod-pumped well and blowout prevention method used during wellhead opening operation
CN110552661A (en) * 2019-09-24 2019-12-10 中国石油集团渤海钻探工程有限公司 Oil pipe external sealing plug valve connector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105587284A (en) * 2014-11-17 2016-05-18 中国石油天然气股份有限公司 Wellhead blowout prevention device of rod-pumped well and blowout prevention method used during wellhead opening operation
CN105587284B (en) * 2014-11-17 2019-07-05 中国石油天然气股份有限公司 Blowout prevention method when oil pumping well head blowout hookup and unlatching shaft mouth operation
CN110552661A (en) * 2019-09-24 2019-12-10 中国石油集团渤海钻探工程有限公司 Oil pipe external sealing plug valve connector

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131204

Termination date: 20140625

EXPY Termination of patent right or utility model