Fusible single core cable release device

A single-core cable and release device technology, which is used in the production of fluids, wellbore/well components, earth-moving drilling, etc. Effect

Inactive Publication Date: 2018-02-23
XIAN CARNATION ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the breaking value of the steel wire of the new and old cables is inconsistent, so the force value of breaking the steel wire can only be controlled according to experience, and the accuracy is not easy to control; at the same time, the torpedo that fixes the steel wire must be replaced once it is pulled off, and the cost is relatively high.

Method used

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  • Fusible single core cable release device
  • Fusible single core cable release device

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Embodiment Construction

[0021] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] The present invention provides a fusible single-core cable release device, such as figure 1 As shown, it includes a locking hook section, an upper casing section and a lower casing end; wherein the locking hook section includes a locking hook 14, and a brake lever 3 is arranged inside the locking hook 14, and one end of the brake lever 3 is inserted into the lock In the tight hook 14, and one end of the locking hook 14 is provided with a gasket 15, and the gasket 15 is covered with a washer 1; One end is outside, and the brake lever 3 is inserted into the upper casing 2, and a first buffer pad 16 is arranged between the end of the upper casing 2 and the locking hook 14, and the first buffer pad 16 is used for buffering the upper casing and the locking hook 14. The vibration between the locking hooks; a spring 4...

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PUM

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Abstract

The invention discloses a fusible single core cable release device. The fusible single core cable release device comprises a brake bar, a locking hook made of a memory material sleeves the outer sideof the one end of the brake bar, a spacer is arranged at the end part of the locking hook, an upper shell body sleeves the other end of the brake bar, one end of the upper shell body covers the locking hook, the other end of the upper shell body is connected with a lower shell body through a thread structure, wherein an insulating quartered barrel is arranged in the lower shell body, a heater sleeves the outer part of the insulating quartered barrel, a protector fuse is arranged between the insulating quartered barrel and the heater, one end of the insulating quartered barrel is connected withthe brake bar, and a second cushion pad sleeves the outer side of the joint of the insulating quartered barrel and the brake bar. The device takes the advantage of the electrical weakness, a fuse circuit acts under the condition that an instrument set does not work, a cable is guaranteed to be separated out through only 30 KG tensile force when the cable is fused or released, the mistaken explosion of an electronic detonator is not caused, and the fusible single core cable release device is more economical and practical when being compared with the traditional mechanical weakness pulling.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a release device for a fusible single-core cable. Background technique [0002] During the perforation operation, the fusible single-core cable release system can be used as an ordinary bridle to complete the perforation operation; once the logging tool is stuck, or when the perforation tool string must be released according to the perforation needs; cut off the perforation tool The power supply of the string is provided by the ground power supply panel or the ground control box dedicated to the releasable joint to provide a specific voltage to the releasable device, and this voltage will not affect the circuit part of the perforation tool string. The heating device will be turned off within 60S. The fuse protector was blown, thereby realizing the separation of the bridle from the perforating instrument string. [0003] However, the existing fusible single-core cable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/119
CPCE21B43/119
Inventor 刘九州陈斌唐文强宋杰刘宗胜刘雪峰王坤
Owner XIAN CARNATION ENERGY TECH
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