CN200964820Y - Pressure balanced type static sealing pressurized workover device - Google Patents

Pressure balanced type static sealing pressurized workover device Download PDF

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Publication number
CN200964820Y
CN200964820Y CN 200720115575 CN200720115575U CN200964820Y CN 200964820 Y CN200964820 Y CN 200964820Y CN 200720115575 CN200720115575 CN 200720115575 CN 200720115575 U CN200720115575 U CN 200720115575U CN 200964820 Y CN200964820 Y CN 200964820Y
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CN
China
Prior art keywords
cylinder
hydraulic cylinder
pressure balance
pressure
piston
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 - Lifetime
Application number
CN 200720115575
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Chinese (zh)
Inventor
杨颖辉
柳秀涛
张艳红
Original Assignee
杨颖辉
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Publication date
Application filed by 杨颖辉 filed Critical 杨颖辉
Priority to CN 200720115575 priority Critical patent/CN200964820Y/en
Application granted granted Critical
Publication of CN200964820Y publication Critical patent/CN200964820Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A pressure balanced static sealing strip workover operations with pressure device comprises a drawtube cover (1), a lifting hydraulic pressure cylinder (2), an upper beam (3), a lower beam (4) and an upper blowout preventer (5) and a lower blowout preventer (6). The utility model also comprises a pressure balanced hydraulic pressure cylinder (7), one end of the cylinder canister of the pressure balanced hydraulic pressure cylinder (7) is communicated with the lower end tube cavity of the drawtube cover (1) through a tube line. Besides the advantage of low energy consumption, the utility model also has the advantages of rapid speed of adding and discharging pressure, stable process, no liquid emission in the well.

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.
The utility model content
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).
CN 200720115575 2007-02-09 2007-02-09 Pressure balanced type static sealing pressurized workover device Expired - Lifetime CN200964820Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200720115575 CN200964820Y (en) 2007-02-09 2007-02-09 Pressure balanced type static sealing pressurized workover device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200720115575 CN200964820Y (en) 2007-02-09 2007-02-09 Pressure balanced type static sealing pressurized workover device

Publications (1)

Publication Number Publication Date
CN200964820Y true CN200964820Y (en) 2007-10-24

Family

ID=38868834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200720115575 Expired - Lifetime CN200964820Y (en) 2007-02-09 2007-02-09 Pressure balanced type static sealing pressurized workover device

Country Status (1)

Country Link
CN (1) CN200964820Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100507206C (en) * 2007-02-09 2009-07-01 杨颖辉 Pressure equalization type static sealed pressurized well-repairing working device
CN106246119A (en) * 2016-09-21 2016-12-21 杨颖辉 Closed spinner slips

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100507206C (en) * 2007-02-09 2009-07-01 杨颖辉 Pressure equalization type static sealed pressurized well-repairing working device
CN106246119A (en) * 2016-09-21 2016-12-21 杨颖辉 Closed spinner slips
CN106246119B (en) * 2016-09-21 2018-04-06 杨颖辉 Closed spinner slips

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Effective date of abandoning: 20070209

C25 Abandonment of patent right or utility model to avoid double patenting