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Cable-type hydraulic vibrating device with adjustable releasing force value

A cable-type, jar technology, applied in wellbore/well components, earthwork drilling, vibration generating devices, etc., can solve problems such as poor use effect and immature instrument design, and achieve simple structure and good compatibility , The effect of reducing instrument damage

Pending Publication Date: 2019-04-16
XIAN CARNATION ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the design of the instrument in this area is not yet mature, and the use effect is not good.

Method used

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  • Cable-type hydraulic vibrating device with adjustable releasing force value
  • Cable-type hydraulic vibrating device with adjustable releasing force value
  • Cable-type hydraulic vibrating device with adjustable releasing force value

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] The present invention is described in further detail below in conjunction with accompanying drawing:

[0031] Such as figure 1 , a cable-type hydraulic jar with adjustable unlocking force of the present invention, comprising an upper joint assembly, a balance acceleration assembly, a shock assembly and a lower joint assembly; the two ends of the shock assembly are respectively connected to the balance acceleration assembly and the lower joint Assemblies, the balance acceleration assembly is connected to the upper joint assembly; the lower joint assembly is mechanically and electrically connected to the lower instrument, and the upper joint assembly is mechanically and electrically connected to the upper instrument; the balance acceleration assembly includes the acceleration cylinder shell 10 and the acceleration cylinder mandrel 8, and the acceleration cylinder core The shaft 8 passes through the shell 10 of the accelerator tube;

[0032] The shock assembly includes a ...

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PUM

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Abstract

The invention discloses a cable-type hydraulic vibrating device with an adjustable releasing force value, and belongs to the technical field of petroleum well logging. The device comprises an upper joint assembly, a balance acceleration assembly, a vibrating assembly and a lower joint assembly; through the arrangement of a releasing force adjusting structure in the vibrating assembly, the cable-type hydraulic vibrating device can adapt to cable connectors of various models with different weak force values. After an instrument string gets stuck, by pulling a cable upwards, energy accumulation by an energy storage elastic piece inside a cylinder shell is accelerated, when the releasing force value is reached, the vibrating assembly generates an upward vibrating effect, the stuck position canbe vibrated to be loose, and finally the instrument string is taken out of a shaft. The device is reasonable in structural design and easy to operate, cost generated by instrument damage, salvaging and the like is reduced while the efficiency is improved, and the compatibility with the cable connectors of various models is good.

Description

technical field [0001] The invention belongs to the technical field of petroleum well logging, and in particular relates to a cable-type hydraulic jar with adjustable unlocking force. Background technique [0002] In well logging operations, such as conventional instrument logging, shell perforation, etc., due to differences in well conditions, different drilling quality, and operator errors will cause the problem of tools getting stuck in the downhole. Especially in nuclear magnetic logging operations, generally a 5.5-inch wellbore is quite small for nuclear magnetic tools, so the risk of getting stuck is very high. If the instrument is stuck, a lot of manpower and material resources will be required to go through the core to salvage, and the cost will be very high. Therefore, it is necessary to use a jar to release the card when the instrument encounters a card. However, the design of the instrument in this respect is not yet mature, and the use effect is not good. And ...

Claims

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Application Information

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IPC IPC(8): E21B31/113E21B28/00
CPCE21B28/00E21B31/113
Inventor 李国芳武兆林杨黄益陈晓冬刘翌尧孙长勇刘九州吴西平孙耀龙徐军明姬小娟王坤
Owner XIAN CARNATION ENERGY TECH
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