Permeating rate and porosity testing device for rock type materials

A testing device and porosity technology, which is applied in measuring devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problem of incomplete testing of permeameters, achieve utilization, ensure accuracy, and save costs Effect

Active Publication Date: 2018-05-29
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of incomplete testing of permeameters, the present invention proposes a combination of steady-state and unsteady-state permeability testing devices, which can not only switch between steady-state and non-steady-state testing methods at will; variable temperature measurement

Method used

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  • Permeating rate and porosity testing device for rock type materials

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and implementation example the present invention is further described:

[0021] Such as figure 1 As shown, a rock material permeability and porosity test device includes a gas booster system 1, the gas booster system 1 is respectively connected to one end of the valve K1 and one end of the valve K2, and the other end of the valve K2 passes through the first flowmeter, The second flow meter and the third flow meter are connected to one end of the valve K3, the other end of the valve K3 is connected to the other end of the valve K1, and then respectively connected to the inlet pressure sensor 3, the upstream pressure chamber 10, one end of the valve K4, one end of the valve K6, and one end of the valve K8 One end of the differential pressure sensor 8 is connected to one end of the valve K0, the other end of the valve K4 is connected to the inlet end of the first rock core holder 12, the gas outlet end of the first rock core h...

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Abstract

The invention discloses a permeating rate and porosity testing device for rock type materials. The device comprises a pneumatic pressurizing system, a flowmeter, an upstream pressure chamber, a rock core clamping device, a downstream pressure chamber, a soap-foam flowmeter, a hydraulic system, a valve K1 used as an unsteady state control valve, a valve K2 and a valve K3, wherein the valve K2 and the valve K3 are used as steady state control valves. According to the device, the steady state permeating rate testing and the unsteady state permeating rate testing are integrated, so that the process is greatly simplified on the basis of traditional cutting, and as a result, the cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of rock material permeability and porosity testing equipment, in particular to a rock material permeability and porosity testing device. Background technique [0002] Permeability is a key parameter required to evaluate the permeability of rock and soil and oil and gas reservoirs. It is used as a key test target in many geotechnical engineering, such as underground nuclear waste disposal, energy underground gas storage construction, and shale gas exploitation. Wait. Therefore, it is very important for the development of geotechnical engineering to obtain the permeability parameters of formation rock mass accurately. Generally, according to the level of permeability, the test methods can be divided into steady-state method and unsteady-state method. The principle of steady-state method is based on Darcy's law, and the test range is generally not less than 10. -17 m 2 ; There are different principles of non...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 陈祥胜刘伟李银平施锡林冯正
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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