CN100507206C - Pressure equalization type static sealed pressurized well-repairing working device - Google Patents

Pressure equalization type static sealed pressurized well-repairing working device Download PDF

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Publication number
CN100507206C
CN100507206C CNB2007100717781A CN200710071778A CN100507206C CN 100507206 C CN100507206 C CN 100507206C CN B2007100717781 A CNB2007100717781 A CN B2007100717781A CN 200710071778 A CN200710071778 A CN 200710071778A CN 100507206 C CN100507206 C CN 100507206C
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China
Prior art keywords
cylinder
hydraulic cylinder
pressure balance
piston
balance hydraulic
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Expired - Fee Related
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CNB2007100717781A
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Chinese (zh)
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CN101012739A (en
Inventor
杨颖辉
柳秀涛
张艳红
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杨颖辉
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Priority to CNB2007100717781A priority Critical patent/CN100507206C/en
Publication of CN101012739A publication Critical patent/CN101012739A/en
Application granted granted Critical
Publication of CN100507206C publication Critical patent/CN100507206C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a pressure balanced static sealing pressure workover operation device. On the device comprising expansion tube jacket (1), lifting hydraulic cylinder (2), upper beam (3), lower beam (4), upper blowout preventer (5) and lower blowout preventer (6) a pressure balanced hydraulic cylinder (7) is set. One end of cylinder of the pressure balanced hydraulic cylinder (7) is connected with the tube cavity at the lower end of expansion tube jacket (1). It is y provided with low energy consumption, rapid loading and unloading pressure, static process and no discharge outside of liquid in well completely.

Description

Pressure equalization type static sealed pressurized well-repairing working device
Technical field
The present invention relates to the oil well repairing operation device, particularly the static seal band is pressed the workover treatment device.
Background technology
In oil well repairing operation, it is a kind ofly can play the device of lower tubular column and downhole tool at well head under oil well and well band press strip spare that band is pressed the workover treatment device.Can be divided into two types of movable sealing and static seals by the sealing means between its wellhead assembly and tubing string, the former exists seal easy to wear, the use cost height, and the high and big shortcoming of environment pollution of fault rate, the latter has solved the former above-mentioned defective effectively.But existing static seal band presses the workover treatment device in operation process, except that overcoming the tubing string self gravitation, also need overcome the pressure effect of well liquid in the stratum, has the high shortcoming of energy consumption.
Summary of the invention
The objective of the invention is: provide a kind of energy consumption low pressure equalization type static sealed pressurized well-repairing working device.
Technical solution of the present invention is: it be include flexible pipe box, lifting hydraulic cylinder, top rail, lower transverse beam, on preventer, the static seal band of preventer is pressed on the workover treatment device pressure balance hydraulic cylinder is set down, an end of the cylinder barrel of pressure balance hydraulic cylinder is connected with the lower end tube chamber of flexible pipe box by pipeline.
Technique effect of the present invention is: it except that having advantage of low energy consumption, also have add, release speed is fast and process is steady, the liquid outside advantage of discharging not fully in the well.
Description of drawings
Fig. 1 partly cuts open structure chart for the embodiment of the invention 1;
Fig. 2 partly cuts open structure chart for the embodiment of the invention 2;
Fig. 3 partly cuts open structure chart for the embodiment of the invention 3.
The specific embodiment
Embodiment 1: as shown in Figure 1, it be include flexible pipe box 1, lifting hydraulic cylinder 2, top rail 3, lower transverse beam 4, on preventer 5, the static seal band of preventer 6 is pressed on the workover treatment device pressure balance hydraulic cylinder 7 is set down.Pressure balance hydraulic cylinder 7 is made of last fluid cylinder 8, following fluid cylinder 9, piston rod 10, upper piston 11 and lower piston 12, the upper end of the lower end of last fluid cylinder 8 and following fluid cylinder 9 connects, piston rod 10 is positioned at fluid cylinder 8 and following fluid cylinder 9, upper piston 11 and lower piston 12 are separately fixed at the top and bottom of piston rod 10, the lower end of last fluid cylinder 8 also is provided with hydraulic oil and imports and exports 13, and the two ends up and down of pressure balance hydraulic cylinder 7 are connected with an end of lifting hydraulic cylinder 2 and the lower end tube chamber of flexible pipe box 1 by pipeline respectively.
Embodiment 2: as shown in Figure 2, it be include flexible pipe box 1, lifting hydraulic cylinder 2, top rail 3, lower transverse beam 4, on preventer 5, the static seal band of preventer 6 is pressed on the workover treatment device pressure balance hydraulic cylinder 7 is set down.Pressure balance hydraulic cylinder 7 is made of cylinder barrel 14, piston rod 15 and piston 16, the piston rod 15 of pressure balance hydraulic cylinder 7 and cylinder barrel 14 are separately fixed on top rail 3 and the lower transverse beam 4, and an end of the cylinder barrel 14 of pressure balance hydraulic cylinder 7 is connected with the lower end tube chamber of flexible pipe box 1 by pipeline.
Embodiment 3: as shown in Figure 3, it be include flexible pipe box 1, lifting hydraulic cylinder 2, top rail 3, lower transverse beam 4, on preventer 5, the static seal band of preventer 6 is pressed on the workover treatment device pressure balance hydraulic cylinder 7 is set down.Pressure balance hydraulic cylinder 7 is made of cylinder barrel 14, piston rod 15 and piston 16, also be connected with fixed mount 17 on the lower transverse beam 4, the piston rod 15 of pressure balance hydraulic cylinder 7 and cylinder barrel 14 be separately fixed at top rail 3 with fixed mount 17 that lower transverse beam 4 links to each other on, an end of pressure balance hydraulic cylinder 7 cylinder barrels 14 is connected with the lower end tube chamber of flexible pipe box 1 by pipeline.

Claims (4)

1, pressure equalization type static sealed pressurized well-repairing working device, it includes flexible pipe box (1), lifting hydraulic cylinder (2), top rail (3), lower transverse beam (4), goes up preventer (5), following preventer (6), it is characterized in that, it also includes pressure balance hydraulic cylinder (7), and an end of the cylinder barrel of pressure balance hydraulic cylinder (7) is connected by the lower end tube chamber of pipeline with flexible pipe box (1).
2, pressure equalization type static sealed pressurized well-repairing working device as claimed in claim 1, it is characterized in that, described pressure balance hydraulic cylinder (7) is by last fluid cylinder (8), following fluid cylinder (9), piston rod (10), upper piston (11) and lower piston (12) constitute, the upper end of the lower end of last fluid cylinder (8) and following fluid cylinder (9) connects, piston rod (10) is positioned at fluid cylinder (8) and following fluid cylinder (9), upper piston (11) and lower piston (12) are separately fixed at the top and bottom of piston rod (10), the lower end of last fluid cylinder (8) also is provided with hydraulic oil and imports and exports (13), and the two ends up and down of pressure balance hydraulic cylinder (7) are connected with an end of lifting hydraulic cylinder (2) and the lower end tube chamber of flexible pipe box (1) by pipeline respectively.
3, pressure equalization type static sealed pressurized well-repairing working device as claimed in claim 1, it is characterized in that, described pressure balance hydraulic cylinder (7) is made of cylinder barrel (14), piston rod (15) and piston (16), the piston rod (15) of pressure balance hydraulic cylinder (7) and cylinder barrel (14) are separately fixed on top rail (3) and the lower transverse beam (4), and an end of the cylinder barrel (14) of pressure balance hydraulic cylinder (7) is connected by the lower end tube chamber of pipeline with flexible pipe box (1).
4, pressure equalization type static sealed pressurized well-repairing working device as claimed in claim 1, it is characterized in that, described pressure balance hydraulic cylinder (7) is made of cylinder barrel (14), piston rod (15) and piston (16), also be connected with fixed mount (17) on the lower transverse beam (4), the piston rod (15) of pressure balance hydraulic cylinder (7) and cylinder barrel (14) be separately fixed at top rail (3) with fixed mount (17) that lower transverse beam (4) links to each other on, an end of pressure balance hydraulic cylinder (7) cylinder barrel (14) is connected by the lower end tube chamber of pipeline with flexible pipe box (1).
CNB2007100717781A 2007-02-09 2007-02-09 Pressure equalization type static sealed pressurized well-repairing working device Expired - Fee Related CN100507206C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100717781A CN100507206C (en) 2007-02-09 2007-02-09 Pressure equalization type static sealed pressurized well-repairing working device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100717781A CN100507206C (en) 2007-02-09 2007-02-09 Pressure equalization type static sealed pressurized well-repairing working device

Publications (2)

Publication Number Publication Date
CN101012739A CN101012739A (en) 2007-08-08
CN100507206C true CN100507206C (en) 2009-07-01

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CNB2007100717781A Expired - Fee Related CN100507206C (en) 2007-02-09 2007-02-09 Pressure equalization type static sealed pressurized well-repairing working device

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101550812B (en) * 2009-05-09 2012-09-05 中国石化股份胜利油田分公司河口采油厂 Blowout dealing workover rig
CN102678080B (en) * 2011-03-16 2013-12-18 胜利方兰德石油装备股份有限公司 Double-stage lifting oil-water well snubbing operation device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009265A (en) * 1989-09-07 1991-04-23 Drilex Systems, Inc. Packer for wellhead repair unit
US5025857A (en) * 1988-10-20 1991-06-25 Mcleod Roderick D Wellhead tubing and casing packer and installation and removal tool
CN2512899Y (en) * 2001-11-26 2002-09-25 辽河石油勘探局兴隆台工程技术处 High pressure oil-gas water well operation device with pressure
CN1403681A (en) * 2002-10-23 2003-03-19 四川石油管理局 Well pipe string withdrawing unit without killing well
CN1730899A (en) * 2005-08-02 2006-02-08 辽河石油勘探局 Apparatus for work under pressure for oil-water well
CN2779047Y (en) * 2005-01-10 2006-05-10 河北华北石油荣盛机械制造有限公司 Sealed type oil-water well under-pressure operation equipment
CN200964820Y (en) * 2007-02-09 2007-10-24 杨颖辉 Pressure balanced type static sealing pressurized workover device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025857A (en) * 1988-10-20 1991-06-25 Mcleod Roderick D Wellhead tubing and casing packer and installation and removal tool
US5009265A (en) * 1989-09-07 1991-04-23 Drilex Systems, Inc. Packer for wellhead repair unit
CN2512899Y (en) * 2001-11-26 2002-09-25 辽河石油勘探局兴隆台工程技术处 High pressure oil-gas water well operation device with pressure
CN1403681A (en) * 2002-10-23 2003-03-19 四川石油管理局 Well pipe string withdrawing unit without killing well
CN2779047Y (en) * 2005-01-10 2006-05-10 河北华北石油荣盛机械制造有限公司 Sealed type oil-water well under-pressure operation equipment
CN1730899A (en) * 2005-08-02 2006-02-08 辽河石油勘探局 Apparatus for work under pressure for oil-water well
CN200964820Y (en) * 2007-02-09 2007-10-24 杨颖辉 Pressure balanced type static sealing pressurized workover device

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Granted publication date: 20090701

Termination date: 20200209