CN202338247U - Three-phase releasing tool - Google Patents

Three-phase releasing tool Download PDF

Info

Publication number
CN202338247U
CN202338247U CN 201120481863 CN201120481863U CN202338247U CN 202338247 U CN202338247 U CN 202338247U CN 201120481863 CN201120481863 CN 201120481863 CN 201120481863 U CN201120481863 U CN 201120481863U CN 202338247 U CN202338247 U CN 202338247U
Authority
CN
China
Prior art keywords
releasing
ball seat
utility
model
top connection
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 201120481863
Other languages
Chinese (zh)
Inventor
李永革
于开斌
赵丽琴
汤永满
张艳玲
杨冠科
陈和平
曹忠林
陶辉
王超
徐婷
吴庭
王焕舟
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.)
CNPC Great Wall Drilling Co
Original Assignee
CNPC Great Wall Drilling Co
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 CNPC Great Wall Drilling Co filed Critical CNPC Great Wall Drilling Co
Priority to CN 201120481863 priority Critical patent/CN202338247U/en
Application granted granted Critical
Publication of CN202338247U publication Critical patent/CN202338247U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to the technical field of open hole completion of a horizontal well, in particular to a three-phase releasing tool for implementing separation of a suspended pipe string and an operating pipe string. A ball seat of the tool is arranged in an upper joint, a hooking barrel and a lower joint. A pressure transfer hole is formed at the upper end of the ball seat. A hydraulic cylinder is sleeved outside the ball seat. The hydraulic cylinder is connected onto the upper joint by a shear pin. The upper end of a pawl spring is in buckled connection with the inner wall of the upper joint. A split convex clamping block at the lower end of the pawl spring is opened by a boss at the lower end of the hydraulic cylinder and is embedded into a groove in the inner wall of the hooking barrel. The hooking barrel and the lower joint are in buckled connection and are fixed by a rotating shear pin. According to the utility model, high releasing success rate is achieved; the success of releasing can be judged according to the sudden reduction of the pumping pressure and no return fluid of an oil sleeve ring on the ground; and the process risk is reduced. The utility model overcomes the defects of no early warning display of the success of releasing, higher process risk and low releasing success rate due to a single ball throwing releasing mode is adopted for most of the traditional releasing tools.

Description

A kind of three-phase releasing tool
Technical field:
The utility model relates to a kind of horizontal well barefoot completion technical field, particularly a kind ofly realizes hanging the three-phase releasing tool that tubing string and operation tubing string separate.
Background technology:
Existing releasing tool mostly adopts single pitching to lose the mode of putting, and loses to put whether success does not have early warning to show yet, can only carry suspending weight variation carrying out ground through examination and judge.The technology risk is bigger, and the success rate of giving up is low.
The utility model content:
The technical problem that the utility model will solve provides a kind of three-phase releasing tool, this tool implementation the success rate height of giving up, can annotate abrupt pressure reduction, oil jacket annular space according to pump on ground and return liquid and judge and give up successfully, reduced the technology risk.Whether overcome existing releasing tool and mostly adopted single pitching to lose the mode of putting, losing to put does not successfully have early warning to show that the technology risk is bigger, the deficiency that the success rate of giving up is low.
The technical scheme that the utility model is taked is: a kind of three-phase releasing tool, comprise top connection, articulate tube and lower contact, top connection, articulate tube, lower contact connects in order; Ball seat places top connection, articulates in tube and the lower contact; The ball seat upper end has pressure transmission hole; Ball seat is set with fluid cylinder outward, and fluid cylinder is connected in the top connection through shear pin, pawl spring upper end and top connection inwall buckle; The distinguish projection fixture block of lower end struts to embed through fluid cylinder lower end boss and articulates in the groove of an inwall, articulates between tube and the lower contact buckle and fixes through the rotation shear pin.
The beneficial effect of the utility model is: the utility model is owing to adopted the structure that integrates pressure, pitching, three kinds of modes of giving up of back-off; Thereby the alternative with on-the-spot technological operation is many; The advantage that the success rate of giving up is high; Can annotate abrupt pressure reduction, oil jacket annular space according to pump on ground and return liquid and judge and give up successfully, simplify the Job Operations program, reduce the technology risk.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Accompanying drawing is the structural representation of the utility model.
The specific embodiment:
Shown in accompanying drawing, a kind of three-phase releasing tool comprises top connection 1, articulates tube 2 and lower contact 3, top connection 1, articulate tube 2, lower contact 3 connects in order; Ball seat 5 places top connection 1, articulates in tube 2 and the lower contact 3; Ball seat 5 upper ends have pressure transmission hole; Be set with fluid cylinder 4 outside the ball seat 5, fluid cylinder 4 is connected in the top connection 1 through shear pin, pawl spring 6 upper ends and top connection 1 inwall buckle; The distinguish projection fixture block of lower end struts through fluid cylinder 4 lower end boss and embeds in the groove that articulates tube 2 inwalls, articulates buckle and fixing through rotation shear pin 7 between tube 2 and the lower contact 3.
Before giving up, the utility model can be realized the inside and outside sealing of tubing string, guarantees the various Job Operations in the completion process; When giving up, can adopt three kinds of modes of giving up, first kind of pressure mode of giving up: be pressed onto the design pressure of giving up in tubing string is beaten, fluid cylinder 4 is opened, and eliminates the spacing of pawl spring 6, and tubing string is inside and outside simultaneously is communicated with, and gives up successfully; Second kind of pitching mode of giving up: in tubing string, drop into the steel ball of design size, the back tubing string that puts in place is pressed onto the design pressure of giving up in beating, and ball seat 5 drives fluid cylinders 4 and opens, and eliminates the spacing of pawl spring 6, and tubing string is inside and outside simultaneously is communicated with, and gives up successfully; The third back-off mode of giving up: apply design moment dextrorotation tubing string, rotation shear pin 7 is sheared, and continues the Rotation Design number of turns, and tubing string is inside and outside to be communicated with, and gives up successfully.
It is understandable that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.

Claims (1)

1. three-phase releasing tool comprises top connection (1), articulates tube (2) and a lower contact (3), top connection (1), articulate tin (2), lower contact (3) connects in order; It is characterized in that: ball seat (5) places top connection (1), articulates in tube (2) and the lower contact (3); Ball seat (5) upper end has pressure transmission hole; Ball seat (5) is outer to be set with fluid cylinder (4), and fluid cylinder (4) is connected in the top connection (1) through shear pin, pawl spring (6) upper end and top connection (1) inwall buckle; The distinguish projection fixture block of lower end struts through fluid cylinder (4) lower end boss and embeds in the groove that articulates tube (2) inwall, articulates buckle and fixing through rotation shear pin (7) between tube (2) and the lower contact (3).
CN 201120481863 2011-11-28 2011-11-28 Three-phase releasing tool Expired - Fee Related CN202338247U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120481863 CN202338247U (en) 2011-11-28 2011-11-28 Three-phase releasing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120481863 CN202338247U (en) 2011-11-28 2011-11-28 Three-phase releasing tool

Publications (1)

Publication Number Publication Date
CN202338247U true CN202338247U (en) 2012-07-18

Family

ID=46486940

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120481863 Expired - Fee Related CN202338247U (en) 2011-11-28 2011-11-28 Three-phase releasing tool

Country Status (1)

Country Link
CN (1) CN202338247U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019846A (en) * 2014-04-29 2015-11-04 中国石油化工股份有限公司 Hydraulic releasing device
CN105525884A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 Pipe column feeding tool with double releasing mechanisms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019846A (en) * 2014-04-29 2015-11-04 中国石油化工股份有限公司 Hydraulic releasing device
CN105525884A (en) * 2014-09-28 2016-04-27 中国石油化工集团公司 Pipe column feeding tool with double releasing mechanisms
CN105525884B (en) * 2014-09-28 2017-12-19 中国石油化工集团公司 A kind of tubing string running tool with double relieving mechanisms

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120718

Termination date: 20121128