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Downhole instrument blade connecting structure

A technology for connecting structures and downhole instruments, applied in drilling equipment, earth-moving drilling, drill pipes, etc., can solve the problems of inconvenient product design and instrument maintenance, complex structure, etc., and achieve convenient design and development, simple and effective connection structure, and occupation small space effect

Pending Publication Date: 2022-03-11
贵州航天凯山石油仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a free-cutting connection structure of downhole instruments to solve the problem that the existing structure is relatively complicated and brings inconvenience to subsequent product design and instrument maintenance

Method used

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  • Downhole instrument blade connecting structure
  • Downhole instrument blade connecting structure
  • Downhole instrument blade connecting structure

Examples

Experimental program
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Effect test

Embodiment

[0015] refer to Figure 1 to Figure 4 , this embodiment provides a free-cutting connection structure for downhole instruments, including a component 1, a component 2 4 and a connecting nut 3 for connecting and fixing them. One end of the connecting nut 3 is distributed with four bosses 31 along the circumferential direction. , the diameter of the connection end of component one 1 is less than or equal to the inner diameter of the connection nut 3, and the outer wall of the connection end of component one 1 is provided with step grooves 11 for clamping the boss 31 along the circumferential direction, and the outer wall of the connection end of component one 1 corresponds to four The boss 31 is also provided with a mounting groove 12 connected to the step groove 11, and one end of the connecting nut 3 is sleeved in the mounting groove 12 of the component one 1 through the boss 31, and by sequentially screwing the connecting nut 3 and the component one The positioning pin 2 of 1 ...

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Abstract

The invention provides a downhole instrument wrecking blade connecting structure which comprises a first assembly, a second assembly and a connecting nut used for connecting and fixing the first assembly and the second assembly, four bosses are distributed at one end of the connecting nut in the circumferential direction, and the diameter of the connecting end of the first assembly is smaller than or equal to the inner diameter of the connecting nut. The outer wall of the connecting end of the first assembly is provided with step grooves used for clamping the bosses in the circumferential direction, and the outer wall of the connecting end of the first assembly is further provided with installation grooves corresponding to the four bosses and connected to the step grooves, and one end of the connecting nut is connected into the installation grooves of the first assembly in a sleeved mode through the bosses. The connecting end of the second assembly is provided with an external thread and is fixedly connected with the other end of the connecting nut in a threaded mode. The problems that an existing structure is complex, and inconvenience is brought to follow-up product design and instrument maintenance are solved. Belongs to the technical field of downhole instruments.

Description

technical field [0001] The invention relates to a free-edge connection structure of downhole instruments, which belongs to the technical field of downhole instruments. Background technique [0002] In the design and development process of oil field downhole instruments, the free edge connection structure is a frequently used connection method, which can ensure that the two parts connected to each other do not rotate relative to each other during the connection process, and is often used to connect each other Components with orientation requirements. [0003] The commonly used free-cutting connection structure is often designed to be complicated, which brings inconvenience to subsequent product design and instrument maintenance. In view of this situation, this patent provides a free-cutting connection structure, which can effectively solve the above problems. Contents of the invention [0004] The invention provides a free-cutting connection structure of downhole instrumen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/02
CPCE21B17/021
Inventor 汪开义
Owner 贵州航天凯山石油仪器有限公司
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