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A device for testing the sealing performance of a packer rubber cylinder

A sealing performance and testing device technology, which is applied to measuring devices, liquid tightness measurement using liquid/vacuum degree, instruments, etc., can solve the problems of sealing performance evaluation, sealing performance testing device is not mature enough, etc.

Active Publication Date: 2020-05-12
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current sealing performance test device for the extended packer rubber cylinder is not mature enough, and it is difficult to conduct a complete evaluation of the sealing performance by judging the leakage site and combining the analysis of the contact situation of the sealing surface

Method used

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  • A device for testing the sealing performance of a packer rubber cylinder
  • A device for testing the sealing performance of a packer rubber cylinder
  • A device for testing the sealing performance of a packer rubber cylinder

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Experimental program
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Embodiment Construction

[0022] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0023] Such as figure 1 As shown, a packer rubber cylinder sealing performance testing device includes an experimental cylinder body and an auxiliary measurement texture, wherein the experimental cylinder body includes a cylinder barrel 5, and the first air pressure detection tube located outside the cylinder barrel 5 is communicated at the center of the bottom of the cylinder barrel 5 12. The lower part is connected with the water inlet pipe 15 and the water outlet pipe 8, the upper part is connected with the second air pressure detection pipe 3, the first air pressure detection pipe 12 is equipped with a first pressure gauge 11, and the water inlet pipe 15 is equipped with a second pressure gauge 16, A third pressure gauge 7 is installed on the outlet pipe 8 , and a fourth pressure gauge 2 is installed on the second air pressure detection tube...

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Abstract

The invention discloses a sealing performance tester for a rubber sleeve of a packer. The tester comprises an experimental cylinder and an auxiliary measurement structure, a hydraulic system realizesradial change of the rubber sleeve to be tested, so that the rubber sleeve makes contact with a stepped shaft and a cylinder, water inlet and outlet pipes are used to pressurize and heat the bottom ofthe cylinder, and loading in real condition is simulated; in the test process, pressure fluctuation of a pressure meter is used to determine a leakage position rapidly; and after sealing performancetest, the morphology of the auxiliary measurement structure is observed to obtain contact deformation conditions of inner-ring and outer-ring surfaces of the rubber sleeve to be tested.

Description

technical field [0001] The invention belongs to the technical field of packer sealing, in particular to a device for testing the sealing performance of a packer rubber cylinder. Background technique [0002] The packer is a special tool for downhole stratified isolation consisting of a steel body, a rubber sleeve and a control part to meet the technical purpose of oil and water wells or the needs of oil layer technical measures. Corresponding types of packers are required for oil testing, oil production, water injection and oil layer stimulation, and the appropriate packer or packer group is selected according to the needs of process technology to complete the technology for oil layer measures. Packers can be divided into self-sealing type, expansion type, compression type and combined type according to the way of sealing. The compression type packer is mainly used in actual operation. Under the action, an axial force is formed to compress the rubber tube, so that the inner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26G01B21/32
CPCG01B21/32G01M3/26
Inventor 郭飞黄毅杰宋炜项冲贾晓红王玉明
Owner TSINGHUA UNIV
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