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Tubular column load testing tool

A technology of load testing and tools, applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of incomplete reliability of results, string damage, etc., to facilitate smooth development and avoid damage Effect

Pending Publication Date: 2021-12-17
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the great uncertainty of the formation, the analysis results are not completely reliable, and if the analysis results are wrong, it is still possible to cause damage to the pipe string

Method used

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Experimental program
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Embodiment Construction

[0028] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0029] An embodiment of the present disclosure provides a pipe string load testing tool, which can accurately detect the axial force, internal fluid pressure, and external fluid pressure received by the pipe string during oil testing construction, thereby Provide accurate guidance for oil testing construction, avoid the damage of the pipe string, not only save the cost of oil testing construction, but also save the wasted man-hours due to the replacement of the pipe string.

[0030] figure 1 It is the first direction sectional view of the pipe string load test tool, combined with the following figure 1 , to introduce the load test tool for the modified pipe string:

[0031] The pipe string load testing tool includes a cylinder bo...

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Abstract

The invention provides a tubular column load testing tool, and belongs to the field of petroleum gas equipment. The tubular column load testing tool comprises a cylinder and an electronic module, wherein the cylinder is of a cylindrical structure with hollow interior and two through ends, and a strain interlayer cavity is formed in the cylinder wall of the cylinder; and the electronic module is located in the strain interlayer cavity and comprises an axial force sensor, an internal pressure sensor and an external pressure sensor, the axial force sensor is located in the middle of the strain interlayer cavity, the internal pressure sensor and the external pressure sensor are both located at the end of the strain interlayer cavity, the internal pressure sensor and the external pressure sensor are arranged in the circumferential direction of the cylinder at intervals, a probe of the internal pressure sensor is communicated with the hollow interior of the cylinder, and the external pressure sensor is communicated with the external space of the cylinder. The tubular column load testing tool can provide accurate guidance for oil testing construction.

Description

technical field [0001] The disclosure belongs to the field of petroleum gas equipment, and in particular relates to a pipe string load testing tool. Background technique [0002] The oil test well is a well drilled during oil construction. The oil test downhole string is not only a channel connecting the formation and the ground, but also a bridge for load transmission. Before oil testing, in order to reduce the probability of damage to the pipe string beyond its own service limit, the formation is usually analyzed in combination with geological information to obtain the axial force, internal fluid pressure, and external fluid pressure that the pipe string will be subjected to . Then, according to the analysis results, it is judged whether the pipe string will be damaged. [0003] However, due to the great uncertainty of the formation, the analyzed results are not completely reliable, and if the analyzed results are wrong, the pipe string may still be damaged. Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/06
CPCG01N3/12G01N3/066G01N2203/0019G01N2203/0042G01N2203/0075G01N2203/0617
Inventor 李玉飞张华礼唐庚张健涛张林罗伟王珏皓田璐朱达江秦山
Owner PETROCHINA CO LTD