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Sand prevention screen tube hydraulic test apparatus

A technology of sand control screen and water pressure test, which is applied in measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problem of inaccurate test results, uneven radial confining pressure of sand control screen, etc. problems, to achieve the effect of scientific testing methods, small footprint and short operation cycle

Inactive Publication Date: 2016-03-09
PETROCHINA CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hydraulic test device for sand control screens to solve the problems of the existing anti-external pressure test of sand control screens, uneven radial confining pressure and inaccurate test results for sand control screens

Method used

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  • Sand prevention screen tube hydraulic test apparatus
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Embodiment Construction

[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

[0037] Such as figure 1 As shown, the present invention proposes a sand control screen hydraulic test device for testing the sand control screen 7, for example, for testing the external compressive strength or external extrusion resistance. The sand control screen hydraulic test device includes: Test cylinders, load bearing assemblies and strain test assemblies.

[0038] The test cylinder has a closed cavity for accommodating the sand control screen 7;

[0039] The load-bearing assembly includes: an elastic sealing sleeve (for example, a rubber sealing sleeve with good elasticity) surrounding the side of the sand control screen, and a screen plug for closing the two ends of the sand control screen 7 (both ends The screen plugs are, for example, respectively: the lef...

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Abstract

The invention provides a sand prevention screen tube hydraulic test apparatus. The apparatus is used for testing the outer pressure resistance of a sand prevention screen tube, and the sand prevention screen tube hydraulic test apparatus comprises: a test cylinder having a closed cavity for accommodating the sand prevention screen tube; a bearing assembly comprising an elastic sealing sleeve surrounding the side direction of the sand prevention screen tube, and screen tube plugs sealing two ends of the sand prevention screen tube; and a strain test assembly comprising a strain sensor arranged on the inner side surface of the sand prevention screen tube. The sand prevention screen tube hydraulic test apparatus allows the uniform radial force to be applied to the whole sand prevention screen tube and a test method to be highly scientific; and a hydraulic value obtained in the invention is the practical outer pressure resistance of the screen tube, and does not need conversion. The sand prevention screen tube hydraulic test apparatus has the advantages of simple, scientific and reasonable structure, and effective measurement of the outer pressure resistance of the sand prevention screen tube.

Description

technical field [0001] The invention relates to the field of sand control in petroleum engineering, in particular to a hydraulic test device for sand control screen pipes. Background technique [0002] For oil pipes, hydrostatic testing is an important testing method to check whether the pipe's anti-extrusion strength is qualified. Sand control screens are also one of the pipes used in the petroleum industry, and their anti-extrusion strength should also be tested by means of hydraulic tests. Since the sand control screen is a structure with internal and external connectivity, the conventional casing hydraulic test method cannot establish the internal and external pressure difference, so that the sand control screen cannot be tested for hydraulic pressure. In the past, the test method for the anti-extrusion strength of the sand control screen was: put the sand control screen between two parallel plates, and squeeze the plates with a press. The point of action of the pressu...

Claims

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Application Information

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IPC IPC(8): G01N3/12
CPCG01N3/12G01N2203/0048G01N2203/0274
Inventor 陈大钊张超吕民陈磊张建军李晓航于晓溪刘高华曹鹏青张鑫丛志新宗伟徐路张利平李宏远仇宇弟张玉臣蒲秀云赵雅丽李洪斌郭韬单祥斌韩汉培雷志超王域
Owner PETROCHINA CO LTD
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