Sleeve fishing tool for downhole testing instruments

A technology for testing instruments and fishing tools, which is applied to the field of downhole testing instruments and casing fishing tools, can solve problems such as difficulty in fishing, no lighting function, etc., and achieves the effects of time-saving, labor-saving and convenient operation.

Pending Publication Date: 2018-06-05
吉辰智能设备集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the inner diameter of the fishing tool in the prior art is relatively fixed and the falling instrument is not easy to be fished and has no lighting function, and proposes a casing fishing tool for downhole testing instruments

Method used

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  • Sleeve fishing tool for downhole testing instruments
  • Sleeve fishing tool for downhole testing instruments

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0016] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

[0017] refer to Figure ...

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Abstract

The invention discloses a sleeve fishing tool for downhole testing instruments. The sleeve fishing tool comprises a base. A first accommodating cavity is formed in the base. A first motor is fixedly connected to the side wall of the first accommodating cavity. A threaded rod is fixedly connected to an output shaft of the first motor. A sliding plate is connected to the threaded rod in a threaded mode, and is connected to the side wall of the first accommodating cavity slidably. Two pull rods are connected to the lower surface of the sliding plate fixedly. The lower end of each pull rod penetrates the side wall of the first accommodating cavity to be fixedly connected with an arc-shaped clamping plate. The upper ends of the arc-shaped clamping plates are connected to the lower surface of the base movably. The lower ends of the arc-shaped clamping plates are fixedly connected with a plurality of clamping rods. A second accommodating cavity is formed in the base. A second motor is connected to the side wall of the second accommodating cavity fixedly. The sleeve fishing tool has the advantages that convenience is brought to downhole working under the dark light, the sleeve fishing toolis convenient and rapid to operate, and time and labor are saved, so that the sleeve fishing tool is worth popularization.

Description

technical field [0001] The invention relates to a fishing tool, in particular to a casing fishing tool for downhole testing instruments. Background technique [0002] At present, in the process of testing the empty wellbore of oil and gas wells, the steel wire rope that transports the test instrument often breaks, causing the test instrument to fall into the well, and the general test instrument has a special fishing head, and special fishing tools can be used The fishing head is fished, but because the top of the testing instrument is in contact with the inner wall of the casing, the inner diameter of the existing fishing tools is relatively fixed, and the falling instrument is not easy to be fished, and the existing fishing tools have no lighting function, which gives a dark environment Downhole work brings inconvenience, for this reason, we propose a kind of downhole testing instrument casing fishing tool to solve the above problems. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B31/18F21V33/00
CPCE21B31/18F21V33/0084
Inventor 宋海滨
Owner 吉辰智能设备集团有限公司
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