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Oil and gas well casing wear test bench

A wear test, oil and gas well technology, applied in the direction of testing wear resistance, etc., can solve the problems of the difference between the test results and the actual situation, the inability to change other parameters, and the inability to adjust the eccentricity, etc., to achieve compact structure, convenient processing and manufacturing, and simple structure Effect

Inactive Publication Date: 2019-06-07
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few reports on the test bench system specially used to study the casing-drill pipe system of oil and gas wells, and the foreign test benches are relatively simple, which can only simulate their mutual rotation and have a single function
Other parameters cannot be changed, such as the eccentricity cannot be adjusted
More importantly, the drill pipe will be subjected to tensile stress during the actual working process, and the current testing machine cannot simulate this working condition, resulting in a big difference between the final test results and the actual situation

Method used

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  • Oil and gas well casing wear test bench
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  • Oil and gas well casing wear test bench

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] An oil and gas well casing wear test bench, comprising:

[0021] The simulated sleeve rotation drive assembly can fix the position of the simulated sleeve 11 and drive the simulated sleeve 11 to rotate;

[0022] The simulated tension loading component can apply axial tensile stress to the simulated drill pipe 25;

[0023] The drill pipe clamp 12 can fix the position of the simulated drill pipe 25;

[0024] When the oil and gas well casing wear test bench was in the experimental state, the simulated casing 11 was sleeved outside the simulated drill pipe 25, the inner diameter of the simulated casing 11 was greater than the outer diameter of the simulated drill pipe 25, and the axis of t...

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Abstract

The invention discloses an oil-gas well casing wear test bed. The test bed comprises a simulation casing rotation driving assembly and a simulation tension loading assembly. The oil-gas well casing wear test bed can simulate relative rotation of a casing and drill pipe system in oil-gas well drilling equipment. The test bed has the advantages that a drill pipe can be loaded more closely to the real working condition, the eccentric distance between a casing and the drill pipe is adjustable, and a test sample is convenient to install. A platform for researching the wear failure problem of the casing is provided.

Description

technical field [0001] The invention relates to the field of experimental equipment, in particular to an oil and gas well casing wear test bench. Background technique [0002] The oil and gas resources in the formation need to be exploited through the drilling system to form well holes. Downhole tools are often required to run continuously for long periods of time, resulting in severe wear problems. The life and reliability of core tools such as casing and drill pipe are closely related to their tribological behavior and wear conditions. The performance of downhole tools in oil and gas wells not only determines the efficiency of oil and gas production, but also relates to the safety of the system and the success or failure of the entire work. Failure caused by excessive casing wear is one of the important causes of failures and accidents in oil and gas production. When the drill pipe rotates in the casing, due to inclination, eccentricity, etc., the drill pipe and the cas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 肖华平刘书海
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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