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A structure and method for disassembling the end of a dual-battery nipple while drilling

A dual-battery, short-section technology, used in earth-moving drilling, surveying, wellbore/well components, etc., can solve the problems of easy resistance to sediment, difficult disassembly of the end, easy access to mud, etc., and achieve the effect of easy dismantling.

Active Publication Date: 2022-08-09
航天科工惯性技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] from figure 1 It can be seen from the figure that the dual-battery pup joint substrate 1 and the terminal 2 are in clearance fit, and are sealed by the seal 3. It is very easy to enter the mud in the gap of the contact surface. When the terminal is disassembled, the sediment in the mud is likely to generate resistance. Difficult to disassemble the terminal

Method used

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  • A structure and method for disassembling the end of a dual-battery nipple while drilling
  • A structure and method for disassembling the end of a dual-battery nipple while drilling
  • A structure and method for disassembling the end of a dual-battery nipple while drilling

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Embodiment Construction

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The existing dual-battery short-joint terminal for while drilling includes a dual-battery short-joint base body 1 and a terminal head 2 that are sealed and connected, and a connector 4 is fixed on the double-battery short-joint base body 1 .

[0022] A base 5 , a connector protective sleeve 6 , and an ejector screw 7 are added on the basis of the disassembly structure of the dual-battery short section end head of the present inv...

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Abstract

The invention provides a structure and method for disassembling a dual-battery short section end while drilling. The connector protective sleeve is placed on the connector, and the half-ring boss of the connector protective sleeve is aligned with the semi-circular groove of the connector. The base is fixedly connected with the end head, and the ejector screw is screwed into the threaded hole of the base until the cylinder of the ejection screw is in place with the round hole of the connector protective sleeve, and the base is fixed with the holding pliers; Push the tip and base together to move to the right, the tip is removed from the dual battery nipple base. The invention can quickly and easily remove the end of the short section of the double battery.

Description

technical field [0001] The invention relates to a disassembly structure and method for connecting the upper end of a short section of two batteries in an oil-while-drilling instrument. Background technique [0002] The oil-while-drilling instrument is required to work continuously and stably in the well. In the past, when a single battery was used for power supply, the instrument had to be removed to replace the battery after the power was exhausted. The battery life of a single drilling trip was short. In order to increase the battery life, dual-battery power supply is adopted, that is, a control short section is added between the two batteries, and when one battery is exhausted, it will automatically switch to the other battery for power supply. There is a terminal on the dual battery nipple for connecting to the instrument and also for sealing. [0003] from figure 1 It can be seen that the dual-battery nipple base 1 and the end 2 are gap-fitted and sealed by the seal 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B49/00
CPCE21B47/00E21B49/00Y02E60/10
Inventor 何永明安金刚邹继华赵鹏飞闫伟张学佳李玮燕刘焕雨
Owner 航天科工惯性技术有限公司