A Downhole Corrosion Monitoring Device

A technology for corrosion monitoring and connecting devices, which is applied to measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc. It can solve the problems of destroying the metal structure of the hanging piece and the difficulty of disassembling the hanging piece, and achieve the effect of not being easy to disassemble

Active Publication Date: 2018-09-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a downhole corrosion monitoring device to solve the problem that the hanging hole on the hanging piece in the existing corrosion monitoring device will damage the metal structure of the hanging piece and the hanging piece is not easy to disassemble

Method used

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  • A Downhole Corrosion Monitoring Device
  • A Downhole Corrosion Monitoring Device
  • A Downhole Corrosion Monitoring Device

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Embodiment Construction

[0026] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] A specific embodiment of the downhole corrosion monitoring device of the present invention, such as Figure 1 to Figure 9 As shown, the downhole corrosion monitoring device includes a coupon connecting device, and the coupon connecting device includes a main cylinder 9, and the main cylinder 9 is symmetrically provided with a coupon window 4, and the coupon window 4 can increase the contact between the coupon 3 and the medium area. The upper end of the hanging piece 3 is symmetrically provided with a shoulder for articulated, forming a T-shaped hanging piece, the outer side of the upper end of the main cylinder 9 is provided with an external thread 1, and the inner side of the lower end is provided with an internal thread 6, and the main cylinder 9 can pass through the external thread 1 and Internal thread 6 multi-stage connection.

[0028] The ...

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Abstract

The invention relates to the field of oil-gas field pipeline corrosion monitoring, in particular to an underground corrosion monitoring device. The underground corrosion monitoring device comprises a hanging piece for corrosion monitoring and a hanging piece connecting device, a shoulder portion for hanging connection is arranged at one end of the hanging piece, the hanging piece connecting device comprises a main barrel, a hanging piece limiting seat is arranged at the upper end of the main barrel, a limiting groove is formed in the hanging piece limiting seat, and the hanging piece is connected into the limiting groove in a hanging mode. The hanging piece is connected into the limiting groove of the hanging piece limiting seat through the shoulder portion arranged on the hanging piece, therefore, the condition that a metal structure of the hanging piece is destroyed due to the fact that a hanging hole is formed in the hanging piece, and the problem that the hanging piece is difficult to disassemble is solved.

Description

technical field [0001] The invention relates to the field of pipeline corrosion monitoring in oil and gas fields, in particular to an underground corrosion monitoring device. Background technique [0002] At present, the coupon corrosion monitoring method is often used to monitor the corrosion of downhole pipelines in oil and gas fields. The coupon corrosion monitoring method is to hang the coupon on the corrosion monitoring device, put the corrosion monitoring device downhole, and monitor the coupon through the weight loss method to achieve the purpose of grasping the corrosion degree of the pipe in the well. There are many ways to connect the hanging piece on the existing monitoring device, and there are mainly the following problems: 1. The hanging piece is processed with a hanging hole in order to fix the hanging piece, but the hanging hole will destroy the metal structure around the hanging hole and disturb the detection. The flow of the medium at the coupon will ultim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 杨一迪何云张武生史雅楠杨俊刘汉斌蒋文才曾川胡培培姜维
Owner CHINA PETROLEUM & CHEM CORP
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