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True triaxial fracturing test device

A fracturing test, true triaxial technology, applied in the direction of applying stable tension/pressure to test material strength, etc., can solve the problems that are not conducive to layout and cannot be disassembled repeatedly, so as to achieve convenient and quick installation and disassembly, ensure sealing performance, Ease of installation and removal

Inactive Publication Date: 2019-08-02
中国平煤神马控股集团有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fracturing tube is fixed by glue joint, which cannot be disassembled repeatedly, which is not conducive to the arrangement on different end faces of the sample

Method used

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  • True triaxial fracturing test device
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  • True triaxial fracturing test device

Examples

Experimental program
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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the drawings.

[0026] See image 3 with Figure 4 , The true triaxial fracturing test device shown includes a loading assembly, a fracturing tube, and an injection pump. The fracturing tube includes a first joint 2, an adapter tube 3, and a second joint 4 that are connected. The first joint 2 Buried in the fracturing hole of sample 1, one end of the inserted sample 1 is welded with the first fracturing pipeline 21, and the other end is provided with a sinking platform, and the sinking platform is provided with the end of the adapter pipe 3 The internal thread realizes the detachable connection of the first joint 2 and the adapter tube 3. The adapter tube 3 passes through the sealing rubber sleeve 5 of the loading assembly, and the other end is connected to the second joint 4. The second joint 4 is sheathed with a movable nut 42 which is provided with an end of the adapter tube 3 in a mating conne...

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Abstract

The invention discloses a true triaxial fracturing test device, which comprises a loading assembly, a fracturing pipe and an injection pump. The fracturing pipe comprises a first connector, an adapterpipe and a second connector, which are communicated. The first connector is embedded in a fracturing hole in a test sample, one end close to the test sample is fixedly connected with a first fracturing pipeline, and the other end is detachably connected with the end portion of the adapter pipe; the other end of the adapter pipe is detachably connected with the second connector; the end portion ofthe second connector is fixedly connected with a second fracturing pipeline; and the other end of the second fracturing pipeline is communicated with the injection pump. The test device is fast and convenient to assemble and disassemble, can be reused and meets the requirement of arranging fracturing shafts on different side surfaces of the test sample simultaneously.

Description

Technical field [0001] The invention relates to a true triaxial test device, in particular to a true triaxial fracturing test device. Background technique [0002] In conventional fracturing experiments, similar fracturing simulations under the mechanical conditions of the rock skeleton of the simulating formation can be carried out. The fracturing simulation can be achieved by directly cementing the fracturing tube inside the rock sample, but such experiments can often only simulate the rock skeleton The stress structure cannot simulate the flow characteristics of the gas reservoir inside the rock sample under formation conditions. And even if the formation conditions under rock mechanics and seepage conditions can be simulated, because the fracturing tube is glued to the fracturing hole in the rock sample, it takes a long time to glue the fracturing tube in the different principal stress directions of the sample. , It cannot be disassembled repeatedly, it is difficult to simul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
CPCG01N3/12
Inventor 吕有厂卢义玉张晋京葛兆龙王满张瑞皋周哲王英伟仲建宇张振胡金红
Owner 中国平煤神马控股集团有限公司
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