Device and method for testing rock fracture seepage parameters under high temperature and high pressure conditions
A rock fracture, high temperature and high pressure technology, applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of not testing the heat transfer efficiency, not being able to test the permeability of non-filled fractures, and not being able to achieve accurate fractures Control and other issues, to achieve the effect of precise and meticulous test methods, prevention of cracking, and reliable test support
Inactive Publication Date: 2016-09-07
CHINA UNIV OF GEOSCIENCES (WUHAN) +1
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[0007] Most of the above invention patents are only applicable to low-pressure conditions, and cannot achieve precise control of cracks under high-temperature and high-pressure conditions, and there is no means to test heat exchange efficiency
However, the "Measurement Method and Device
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[0026] The present invention will be described in detail below with reference to the drawings and specific embodiments, but the protection scope of the present invention is not limited to the following embodiments.
[0027] The structure of the rock fracture seepage parameter test device provided in this embodiment is as follows figure 1 As shown, at least a testing machine frame 4 is included. The testing machine frame 4 is equipped with a testing machine triaxial cylinder 5 and an indenter system. The indenter system is composed of an upper indenter 7 and a lower indenter 11, which is a cylindrical sample 6 is placed between the upper indenter 7 and the lower indenter 11, its structure is like Figure 4 Shown. The connection between the upper and lower indenters and the sample is sealed with latex film. The cracks of the sample are fixed with transparent glue to resist the confining pressure. The outer part of the sample is wrapped with a heat shrinkable tube. The two ends of t...
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The invention provides a device for testing rock fracture seepage parameters under high temperature and high pressure conditions. The device at least comprises a tester framework, wherein a tester three-axis cylinder and a pressure head system are mounted in the tester framework, the pressure head system comprises an upper pressure head and a lower pressure head, and cylindrical samples are placed between the upper pressure head and the lower pressure head; the upper pressure head and the lower pressure head are mounted on the tester three-axis cylinder and are driven by the tester three-axis cylinder to pressurize the samples; a seepage water inlet is formed in the lower pressure head, a seepage water inlet pipe is arranged on the lower pressure head, a seepage water outlet is formed in the upper pressure head, and a seepage water outlet pipe is arranged on the upper pressure head; and an oil delivery pipe is connected to the tester three-axis cylinder, the other ends of the seepage water inlet pipe and the seepage water outlet pipe are connected with a seepage control system, and the other end of the oil delivery pipe is connected to a confining pressure control system. According to the device and the method, deficiencies in the prior art are solved, a seepage test under the high temperature and high pressure conditions can be realized, and the heat exchange efficiency in the seepage test can be tested. The device and the method have important significances to terrestrial heat exploitation.
Description
technical field [0001] The invention provides a device and method for testing seepage parameters of rock fissures, in particular to a device for testing parameters such as permeability coefficient and permeability of underground rock mass under specific temperature and confining pressure conditions under high temperature and high pressure conditions A device belongs to the technical field of mechanical devices. Background technique [0002] Geothermal resource is a typical clean energy, also known as "green energy" and "renewable energy", which has huge utilization value. The Enhanced Geothermal System (EGS) injects cold water, takes advantage of the nearly constant temperature of the deep underground, heats up the cold water, and pumps it out from the ground to obtain high-temperature water or steam for power generation. The seepage properties of the underground rock mass and the heat transfer efficiency during the seepage process are the key factors that determine the uti...
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Login to view more IPC IPC(8): G01N15/08G01N25/20
CPCG01N15/082G01N25/20
Inventor 骆进谭龙魏显贵朱明成张灿海郭清海项伟庄亚芹周超朱永强
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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