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Bidirectional setting device for downhole tool indoor inspection

A technology for downhole tools and setters, which is applied in the field of bidirectional setters, can solve problems such as setter failure, damage to the sealing element of the setter, complex structure, etc., and achieves improved reliability, extended service life, and simple structure. Effect

Active Publication Date: 2018-12-11
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the one-way setting device commonly used in indoor experiments to test bridge plugs has two-stage pistons inside. The structure is complex and can only be used in one direction. After each use, the piston parts need to be disassembled and reset. It is easy to cause damage to the internal sealing elements of the setter, resulting in failure of the setter

Method used

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  • Bidirectional setting device for downhole tool indoor inspection

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specific Embodiment approach

[0010] The specific embodiment: the present invention will be described in further detail below in conjunction with the accompanying drawings. 8. The push cylinder 9 is composed of a power fluid connector 10; wherein the force transmission head 1, the piston rod bushing 4, and the piston rod 5 are connected through the key 2, the force transmission head 1 is threaded with the lock sleeve 3, and the piston rod bushing 4 is connected with the The end joint 6 is threaded, the power fluid connector 10 is welded to the end joint 6, the piston 7 is threaded to the piston rod 5, the end joint 6 is threaded to the piston cylinder 8, the force transmission head 1 is threaded to the push cylinder 9, The overall structure is symmetrical up and down with the piston 7 as the center.

[0011] There is a through groove 11 in the piston rod liner 4, the key 2 can move up and down in the through groove 11 of the piston rod liner 4,

[0012] When setting and sealing the bridge plug in the indo...

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Abstract

The invention belongs to the field of oil field production engineering and relates to a bidirectional setting device for downhole tools of anchor seal integral ball seat and the like for indoor inspection bridge plugs and fractures, solving the problem that disassembling and resetting of piston components are required after each use of a one-way setting device. The bidirectional setting device comprises force transmitting heads (1), keys (2), lock sleeves (3), piston rod liners (4), piston rods (5), end connectors (6), a piston (7), a piston cylinder (8), push tubes (9) and power hydraulic connectors (10); the force transmitting heads (1), the piston rod liners (4) and the piston rods (5) are connected through the keys (2). The bidirectional setting device has the advantages of simplenessin structure, no need of disassembling and resetting of pistons after setting, safety and reliability and the like.

Description

technical field [0001] The invention relates to the field of oil production engineering in oil fields, and belongs to a bidirectional setting device which can be used for indoor inspection of bridge plugs, fracturing anchor-sealing integrated soluble ball seats and other downhole tools. Background technique [0002] At present, the one-way setting device commonly used in indoor experiments to test bridge plugs has two-stage pistons inside. The structure is complex and can only be used in one direction. After each use, the piston parts need to be disassembled and reset. It is easy to cause damage to the internal sealing elements of the setter, resulting in failure of the setter. Contents of the invention [0003] The object of the present invention is to provide a two-way setting device for indoor inspection of downhole tools, which has a simple structure and does not need to disassemble and reset the piston part after use. [0004] The technical solution of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/134
CPCE21B33/134
Inventor 林忠超孙江刘崇江许浩赵骊川何庆刘云张平安韩晓辉黄明
Owner PETROCHINA CO LTD