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An electromagnetic guiding fishing tool and a magnetic guiding eccentric dispensing device

A guiding and eccentric technology, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc., can solve the problems of low fishing success rate and easy accumulation of impurities in fishing tools, and achieve high fishing success rate and structure Simple, long-lasting effect

Active Publication Date: 2022-03-01
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an electromagnetic-guided fishing tool and a magnetic-guided eccentric dispensing device that solves the problems of easy accumulation of impurities in existing fishing tools and reduced success rate of fishing.

Method used

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  • An electromagnetic guiding fishing tool and a magnetic guiding eccentric dispensing device
  • An electromagnetic guiding fishing tool and a magnetic guiding eccentric dispensing device
  • An electromagnetic guiding fishing tool and a magnetic guiding eccentric dispensing device

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specific Embodiment approach

[0016] Specific embodiments: The present invention will be further described below in conjunction with the accompanying drawings: the present invention is composed of an electromagnetic-guided fishing tool and a magnetic-guided eccentric dispensing device, wherein the electromagnetic-guided fishing tool is lowered into the magnetic-guided eccentric dispensing device.

[0017] The electromagnetic guiding fishing tool consists of a cable 1, a cable connector 2, a fishing device body 3, a guiding coil 4, a fixed pin 5, a tightening wheel 6, a fishing claw 7, a coil skeleton 8, a coil 9, a magnet rod 10, and a flow adjustment The device 11 and the lower cone 12 are composed, wherein the cable 1 passes through the cable joint 2 and the upper end of the fish thrower body 3 is connected with the guide coil 4, the lower end of the cable joint 2 is threadedly connected with the upper end of the fish thrower main body 3, and the fish thrower main body The lower end of 3 is threadedly con...

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Abstract

The invention relates to the technical field of oil production engineering in oilfields, and belongs to an electromagnetic-guided fishing tool and a magnetic-guided eccentric injection device used in oilfield injection wells. The invention solves the problems of easy accumulation of impurities in the existing fishing tools, and the reduction of the success rate of fishing. In the eccentric dispensing device; the present invention has the advantages of simple and novel structure, repeated use, long service life and high fishing success rate.

Description

technical field [0001] The invention relates to the technical field of oil production engineering in oilfields, and belongs to an electromagnetic-guided fishing tool and a magnetic-guided eccentric injection device used in oilfield injection wells. Background technique [0002] Along with the needs of oilfield development, many kinds of fishing tools and injection devices have been invented. A throwing device, authorized announcement number: CN206299360U; permanent throwing catcher for highly inclined water injection wells and its use method, CN110185404A, which adopts traditional mechanical guidance and throwing, and is used in conjunction with the downhole eccentric injection device , because the downhole eccentric injection device is placed downhole for a long time, impurities are easy to accumulate in the body of the upright, reducing the success rate of fishing. Contents of the invention [0003] The object of the present invention is to provide an electromagnetic-gu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B23/00E21B31/06E21B31/12E21B43/14
CPCE21B23/00E21B31/06E21B31/12E21B43/14
Inventor 李海成徐德奎宋兴良高光磊韩宇王玲马珺喆王超逸邱亚东孟琦
Owner PETROCHINA CO LTD
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