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In-well magnetic chipping fisher

An overshot and magnetic technology, applied in wellbore/well parts, earthwork drilling and mining, etc., can solve problems such as low construction efficiency and achieve the effect of improving construction efficiency

Active Publication Date: 2018-09-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the fishing tools in the prior art can only be used to fish debris and cannot be connected with other electric control tools, which leads to low construction efficiency

Method used

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  • In-well magnetic chipping fisher
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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing.

[0022] In this application document, the direction term "upstream" is as figure 1 As indicated by arrow 120 in , "downstream" is the direction opposite to "upstream".

[0023] figure 1 The structure of the well debris magnetic overshot 100 (hereinafter referred to as the overshot 100 for short) according to the present invention is schematically shown. Such as figure 1 As shown, the overshot 100 includes a fishing main body 1 , an electric control tool 10 connected to the downstream end of the fishing main body 1 , and a cable 3 . The salvage main body 1 has magnetism to absorb metal debris in the well and complete the salvage operation. The cable 3 axially passes through the fishing body 1 and is connected to the electric control tool 10 to supply power and / or transmit signals to the electric control tool 10 . In this way, when the overshot 100 is used to carry out th...

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Abstract

The invention relates to an in-well magnetic chipping fisher. The in-well magnetic chipping fisher comprises a magnetic fishing main body for fishing chippings and an electrically controlled tool connected with the downstream end of the fishing main body, wherein a cable axially penetrating through the fishing main body and connected with the electrically controlled tool. The in-well magnetic chipping fisher comprises the magnetic fishing main body and the electrically controlled tool, thus operation of the electrically controlled tool is achieved while chipping fishing, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the field of petroleum and natural gas development, in particular to a magnetic fisher for debris in wells. Background technique [0002] At present, for unconventional wells or tight gas wells, well washing must be performed before production logging, especially to remove metal debris in the wellbore. However, the fishing tools in the prior art can only be used to fish debris, and cannot be connected with other electric control tools, which leads to low construction efficiency. Contents of the invention [0003] In view of the above problems, the present invention proposes a magnetic fisher for debris in wells. The magnetic fisher for debris in a well according to the present invention includes a fishing body and an electric control tool, thereby enabling the electric control tool to operate while fishing for debris, thereby improving construction efficiency. [0004] The magnetic fisher for debris in the well according to...

Claims

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Application Information

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IPC IPC(8): E21B31/06
CPCE21B31/06
Inventor 毛军张同义段友智姚志良刘欢乐翟羽佳何同
Owner CHINA PETROLEUM & CHEM CORP
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