Cable type hydraulic jar with through line of telescopic structure

A telescopic structure and cable-type technology, which is applied in the direction of cable arrangement between relative moving parts, cable installation, electrical components, etc., can solve the problems of broken through lines, abnormal communication, power supply, etc., and achieves convenient installation and large design space. Compact and unobstructed flow

Pending Publication Date: 2019-04-12
XIAN CARNATION ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the design of this instrument, if the instrument is stretched, it will lead to the breakage of the through line, resulting in abnormal power supply and communication

Method used

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  • Cable type hydraulic jar with through line of telescopic structure
  • Cable type hydraulic jar with through line of telescopic structure
  • Cable type hydraulic jar with through line of telescopic structure

Examples

Experimental program
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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0035] Such as figure 1As shown, the cable hydraulic jar of the present invention includes a balance assembly, an acceleration assembly, a shock assembly and a through wire 3; The assembly includes a shock shell 15 and a shock shaft 14. One end of the acceleration tube mandrel 10 is located in the balance shell 2, and the other end is located in the acceleration tube shell 11; one end of the shock shaft 14 is located in the shock shell 15, and the other end is connected to the acceleration tube The shell 11 is connected; inside the balance shell 2 there is a first high temperature resistant metal joint 1 and a second high temperature resistant metal joint 4, the first high temperature resistant metal joint 1 is fixed on the upper end of the balance shell 2; inside the shock shell 15 there is ...

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PUM

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Abstract

The invention relates to the technical field of petroleum logging, specifically relates to a cable type hydraulic jar with a through line of a telescopic structure, comprising a first high-temperature-resistant metal joint, a balance shell, the through line, a second high-temperature-resistant metal joint, a mounting pipe, an accelerating cylinder core shaft, an accelerating cylinder shell, a jarshaft, a jar shell, a third high-temperature-resistant metal joint and a fourth high-temperature-resistant metal joint. One end of the through wire is fixed in the first high-temperature-resistant metal joint, and the other end of the through wire penetrates through the second high-temperature-resistant metal joint, the mounting pipe, the jar shaft and the third high-temperature-resistant metal joint to the fourth high-temperature-resistant metal joint. A section of through line is coiled between the first high-temperature-resistant metal joint and the second high-temperature-resistant metal joint, and a section of through line is coiled between the third high-temperature-resistant metal joint and the fourth high-temperature-resistant metal joint, so that the elongation of the through lineis compensated. Due to the compensation amount of the through line, when the instrument is moved long, the through line cannot be snapped, and therefore the whole action of the instrument cannot be affected.

Description

technical field [0001] The invention relates to the technical field of petroleum well logging, in particular to a cable-type hydraulic jar with a through-wire in a telescopic structure. Background technique [0002] Cable-type hydraulic jars are used in all kinds of oil logging, such as perforation, coring and nuclear magnetic downhole operations. By connecting this instrument to the upper end of the entire instrument string, it is generally set at the lower end of the cable connector. Along with the logging instrument string, it is lowered into the wellbore. During the logging operation, there is a risk of the tool getting stuck, such as the following situations: during the logging operation, the drilling quality of the well team is not up to standard, and the wellbore is deformed; during the nuclear magnetic logging process, the outer diameter of the nuclear magnetic Smaller, the instrument is easy to get stuck during well logging; in perforation operations, shell perfora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B31/113H02G11/00
CPCE21B31/113H02G11/006
Inventor 王献军杨黄益刘九州吴西平孙耀龙徐军明姬小娟王坤杨党昆
Owner XIAN CARNATION ENERGY TECH
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