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A compression slip packer

A packer, compression technology, applied in the directions of sealing/packing, wellbore/well components, earth-moving drilling, etc. Range of use, effect of avoiding slippage

Active Publication Date: 2020-04-17
河北鸿凯石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the implementation of layered water plugging oil recovery technology to seal off high aquifers is an effective way to control the rise of water cut in oil wells. Packers should be used for layered water plugging. There are many types of existing packers, but they are easy to Problems such as failure, sliding, low bearing capacity, low construction success rate, and difficulty in unsealing, etc., and in the oil production process string of the oil field, it is necessary to check the pump regularly. , a new packer must be re-run, resulting in a waste of resources and a large workload, and many packers have low efficiency during the work process, which brings great troubles to people's use, and some The packer cannot realize the flow regulation function, which seriously affects the use range of the packer

Method used

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  • A compression slip packer
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Embodiment 1

[0021] See Figure 1-2 , An embodiment provided by the present invention: a compression slip packer, including a packer upper joint 1, a hydraulic cylinder liner 2, a piston sliding cavity 3, a packer lower joint 14 and a return spring 18 , The outer wall of the bottom end of the upper connector 1 of the packer is threadedly connected with a cylinder liner 2, and the inner wall of the upper connector 1 of the packer is threadedly connected with a ball seat tube 6 on the side away from the cylinder liner 2, and the cylinder liner 2 and A piston sliding cavity 3 is provided below the upper joint 1 of the packer between the ball seat tubes 6, a piston supporting plate 5 is arranged inside the piston sliding cavity 3, and a bottom sealing seat pin 4 is provided on the inner side wall of the piston sliding cavity 3. And the end of the bottom seal seat pin 4 away from the inner wall of the piston sliding cavity 3 penetrates the piston support plate 5. The piston sliding cavity 3 belo...

Embodiment 2

[0030] See Figure 1-2 , An embodiment provided by the present invention: a compression slip packer, including a packer upper joint 1, a hydraulic cylinder liner 2, a piston sliding cavity 3, a packer lower joint 14 and a return spring 18 , The outer wall of the bottom end of the upper connector 1 of the packer is threadedly connected with a cylinder liner 2, and the inner wall of the upper connector 1 of the packer is threadedly connected with a ball seat tube 6 on the side away from the cylinder liner 2, and the cylinder liner 2 and A piston sliding cavity 3 is provided below the upper joint 1 of the packer between the ball seat tubes 6, a piston supporting plate 5 is arranged inside the piston sliding cavity 3, and a bottom sealing seat pin 4 is provided on the inner side wall of the piston sliding cavity 3. And the end of the bottom seal seat pin 4 away from the inner wall of the piston sliding cavity 3 penetrates the piston support plate 5. The piston sliding cavity 3 belo...

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Abstract

The invention discloses a compression type slip release packer which comprises a top joint of the packer, a hydraulic cylinder jacket, a piston slide cavity, a bottom joint of the packer and a returnspring. The hydraulic cylinder jacket is in threaded connection with the outer side wall of the bottom end of the top joint of the packer; a ball socket pipe is in threaded connection with the inner side wall of the side, away from the hydraulic cylinder jacket, of the top joint of the packer; a bottom seal pin is arranged on the inner side wall of the piston slide cavity; a fishing pipe is arranged inside the piston slide cavity below a piston support plate; a through pipe is arranged inside the ball socket pipe, and a spherical regulator is arranged at the center of the inside of the throughpipe; a rubber barrel shaft is arranged at the bottom end of the hydraulic cylinder jacket; a slip support bushing is arranged at the bottom end of a mounting lock; the bottom joint is arranged on the inner side wall of the bottom end of a locking sleeve. The compression type slip release packer has high efficiency in use, has a flow control function, and avoids slipping during use.

Description

Technical field [0001] The invention relates to the technical field of packers, in particular to a compressed slip packer. Background technique [0002] At present, the implementation of layered jamming water oil extraction technology to seal off high water-bearing layers is an effective way to control the rise of water cut in oil wells. Packers must be used for layered jamming of water. There are many types of existing packers, but they are easy to Problems such as failure, sliding, low carrying capacity, low construction success rate and difficulty in unblocking, and in the oil production process string of the oil field, it is necessary to check the pump regularly. When checking the pump, the string is proposed, and the packer is unblocked. , A new packer must be reloaded, resulting in waste of resources and a large workload, and many packers are inefficient in the working process, which brings great trouble to people’s use, and some The packer cannot realize the flow adjustme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/129E21B33/124C08L9/06C08L83/04C08L1/28C08L25/08C08K13/02C08K3/04C08K5/14C08K3/22C08K3/36B29C35/00
CPCB29C35/00C08K2003/2296C08K2201/011C08L9/06C08L2205/035C08L2312/00E21B33/124E21B33/129C08L83/04C08L1/28C08L25/08C08K13/02C08K3/04C08K5/14C08K3/22C08K3/36
Inventor 冯海朝
Owner 河北鸿凯石油科技有限公司