CN203213998U - Downhole press mounting blowout preventer - Google Patents

Downhole press mounting blowout preventer Download PDF

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Publication number
CN203213998U
CN203213998U CN 201320099994 CN201320099994U CN203213998U CN 203213998 U CN203213998 U CN 203213998U CN 201320099994 CN201320099994 CN 201320099994 CN 201320099994 U CN201320099994 U CN 201320099994U CN 203213998 U CN203213998 U CN 203213998U
Authority
CN
China
Prior art keywords
downhole
blowout preventer
oil pipe
core shaft
press mounting
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
CN 201320099994
Other languages
Chinese (zh)
Inventor
顾祝明
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.)
Jiangsu Tiantai Valve Co., Ltd.
Original Assignee
JIANGSU TIANTAI POWER STATION VALVE CO Ltd
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 JIANGSU TIANTAI POWER STATION VALVE CO Ltd filed Critical JIANGSU TIANTAI POWER STATION VALVE CO Ltd
Priority to CN 201320099994 priority Critical patent/CN203213998U/en
Application granted granted Critical
Publication of CN203213998U publication Critical patent/CN203213998U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A downhole press mounting blowout preventer comprises an upper connector, a core shaft, a pin bolt, a rubber barrel, a press cap, a separation ring, a body and a lower connector. The downhole press mounting blowout preventer is characterized in that the core shaft penetrates through the center of the rubber barrel and the center of the body, the core shaft and the upper connector are fixedly connected at the top end of the core shaft through the pin bolt, and the lower end of the core shaft is connected with the lower connector through threads; the rubber barrel is located between the upper connector and the body and is connected with the body through the press cap; the separation ring is arranged at the lower end of the press cap in the body. The downhole press mounting blowout preventer has the advantages that the construction operating hole with an oil pipe generating overflow is aimed at, a channel in an oil pipe is blocked, and the hole overflow or hole blowout phenomenon during hole drilling is avoided, and operation safety is ensured. As the blocker of the downhole oil pipe, the downhole press mounting blowout preventer is simple in structure, easy and convenient to operate, safe in using, and strong in reliability.

Description

A kind of down-hole press-fits blowout hookup
Technical field
The utility model relates to the capping tools that a kind of oilfield is used, and specially refers to a kind ofly for the down-hole oil tube blanking plug, specifically is a kind of shutoff oil pipe internal channel, takes place when avoiding pulling out of hole that well overflows or blowout phenomenon down-hole press-fits blowout hookup.
Background technology
Rise in the oil pipe process in the oil-water well well workover, sometimes borehole pressure height, well liquid sprays in oil pipe, environment is polluted, to well workover band water very big difficulty, make the oil-water well can not operation, need carry out could continuing operation after the kill-job construction to oil-water well, increase kill-job equipment and goods and materials that the kill-job construction needs, the engineering time be long, consume big, the waste great amount of manpower, material resources, and well killing fluid can damage the stratum, and oil well output is reduced, can not realize the quick reparation of oil-water well, in the oil well trip-out process, because the influence of strata pressure, the well phenomenon of overflowing is often arranged in the oil pipe, blowout can take place in the excessive phenomenon of this well such as untimely handling well.For control well overflows or the blowout phenomenon takes place, guarantee oil well production safety, must oil pipe cock or simple and easy and say be installed at oil pipe.Because well overflows or the blowout phenomenon mostly is sudden, it is very big to rob the cock of charge of oil pipe or mounting hardness, therefore on-the-spot and to control difficulty big, in case handle untimelyly, not only pollutes the well site, and also operating personnel's safety in serious threat.A kind of tubing plug in the existing technology, after daily use, can be because the fouling of Da Gao part tube inner wall be serious, not in place under the blocking device, plug depth is more shallow, has made that the oil pipe time is longer, frequent use is bigger to the infringement of blanking plug in addition, operating efficiency is low, and difficult the repeated use directly influences its economic benefit and job performance.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, catches for a kind of down-hole to press-fit blowout hookup.Produce the construction operation well of overflow at oil pipe, well takes place and overflows or the blowout phenomenon in shutoff oil pipe internal channel when avoiding pulling out of hole, guarantee job safety.
The utility model is realized by following concrete technical scheme.
A kind of down-hole press-fits blowout hookup, comprise top connection, mandrel, pin, packing element, pressure cap, spacer ring, body, lower contact, its feature is being that described mandrel passes from the center of packing element, body, mandrel and top connection are fixedly connected on the mandrel top by pin, and the mandrel lower end is by the lower contact that is threaded; Packing element is positioned at the centre of top connection and body, is connected with body by pressure cap; Spacer ring is equipped with in the lower end of pressure cap in the body.
Main feature of the present utility model is the construction operation well that produces overflow at oil pipe, and shutoff oil pipe internal channel well takes place when avoiding pulling out of hole overflows or the blowout phenomenon, guarantees job safety.
Usefulness of the present utility model also is:
Utilize the effect of self gravitation, free-falling, shutoff tubing string passage, after the eye position plate of lower contact bottom tubing string contacts, lower contact and top connection meeting produce relative motion, the pin that connects top connection and mandrel can be cut off thereupon, packing element produces the envelope that expands simultaneously, and the distance of the relative motion that lower contact and top connection is produced by intrinsic spacer ring is locked, packing element is in all the time expand the state of envelope, realizes the purpose of shutoff oil pipe passage, can improve the efficiency of construction of down-hole, reduce the kill-job number of times, reduce construction cost, environmental protection, safety.As the blanking plug of down-hole oil tube, it is simple in structure, and is easy and simple to handle, uses safety, good reliability.
Description of drawings
Fig. 1 is section of structure of the present utility model.
In Fig. 1: 1-top connection, 2-mandrel, 3-pin, 4-packing element, 5-pressure cap, 6-spacer ring, 7-body, 8-lower contact.
The specific embodiment
The utility model is described in further detail below in conjunction with Figure of description.
A kind of down-hole press-fits blowout hookup, comprise top connection 1, mandrel 2, pin 3, packing element 4, pressure cap 5, spacer ring 6, body 7, lower contact 8, its feature is being that described mandrel 2 passes from the center of packing element 4, body 7, mandrel 2 is fixedly connected on mandrel 2 tops by pin 3 with top connection 1, and mandrel 2 lower ends are by the lower contact 8 that is threaded; Packing element 4 is positioned at the centre of top connection 1 and body 7, is connected with body 7 by pressure cap 5, and spacer ring 6 is equipped with in the lower end of the pressure cap 5 in the body 7.

Claims (1)

1. a down-hole press-fits blowout hookup, comprise top connection, mandrel, pin, packing element, pressure cap, spacer ring, body, lower contact, its feature is being that described mandrel passes from the center of packing element, body, mandrel and top connection are fixedly connected on the mandrel top by pin, the mandrel lower end is by the lower contact that is threaded, packing element is positioned at the centre of top connection and body, is connected with body by pressure cap; Spacer ring is equipped with in the lower end of pressure cap in the body.
CN 201320099994 2013-02-22 2013-02-22 Downhole press mounting blowout preventer Expired - Fee Related CN203213998U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320099994 CN203213998U (en) 2013-02-22 2013-02-22 Downhole press mounting blowout preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320099994 CN203213998U (en) 2013-02-22 2013-02-22 Downhole press mounting blowout preventer

Publications (1)

Publication Number Publication Date
CN203213998U true CN203213998U (en) 2013-09-25

Family

ID=49203545

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320099994 Expired - Fee Related CN203213998U (en) 2013-02-22 2013-02-22 Downhole press mounting blowout preventer

Country Status (1)

Country Link
CN (1) CN203213998U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110630210A (en) * 2019-10-16 2019-12-31 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Loess layer leakage-proof plugging tool and use method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110630210A (en) * 2019-10-16 2019-12-31 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Loess layer leakage-proof plugging tool and use method thereof
CN110630210B (en) * 2019-10-16 2023-12-01 中国石油天然气集团有限公司 Leakage-proof plugging tool for yellow soil layer and using method thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: JIANGSU TIANTAI VALVE CO., LTD.

Free format text: FORMER NAME: JIANGSU TIANTAI POWER STATION VALVE CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 224400 Yancheng City District, Funing County, Jiangsu Province, B

Patentee after: Jiangsu Tiantai Valve Co., Ltd.

Address before: 224400 Yancheng City District, Funing County, Jiangsu Province, B

Patentee before: Jiangsu Tiantai Power Station Valve Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130925

Termination date: 20170222

CF01 Termination of patent right due to non-payment of annual fee