Long coal rock sample gas-liquid seepage test system
A testing system and technology for coal and rock samples, which are used in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc. Efficiency, high practical effect of guiding significance
Active Publication Date: 2020-04-10
CHONGQING UNIV
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Problems solved by technology
At present, in the gas-liquid seepage test of coal and rock samples, multiple tests are carried out for different temperatures, and the test efficiency is low; and because the tests at different temperatures are independent, it is impossible to truly simulate the interaction of gas-liquid seepage in different formations. influence, there are certain limitations
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[0015] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:
[0016] combine figure 1 , figure 2 As shown, a long coal rock sample gas-liquid seepage test system is mainly composed of a long steel cylinder 1, a ring pressure transmission rubber sleeve 2, a gas seal head connected to the end 3, an axial pressure applying piston 4, a first pressure sleeve 5, and a second pressure sleeve. Two pressure sleeves 6, heating insulation sleeve 7, temperature sensor 8, gas source 9, booster pump 10, high pressure gas storage tank 11, one-way valve 12, pressure sensor 13, back pressure valve 14, gas-liquid separator 15, drying Agent 16, gas flow meter 17, back pressure container 18, back pressure pump 19, pressure reducing valve 20, pressure gauge 21, stop valve 22, ring pressure pump 23, axial pressure pump 24.
[0017] The test chamber is used to hold long coal rock samples. The gas source 9, booster pump 10, high-pressur...
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Abstract
The invention discloses a long coal rock sample gas-liquid seepage test system comprising a test chamber for clamping a long coal rock sample. A gas source, a booster pump, a high-pressure gas storagetank and a one-way valve are sequentially connected in series to form a gas supply pipeline; a constant-flux pump and a steam generator are connected in series to form a steam heating pipeline; the gas supply pipeline is connected with the steam heating pipeline in parallel and then the parallel unit is connected in series with an air inlet end of the test chamber; the gas inlet end of the test chamber is connected with a gas inlet pipeline; the gas outlet pipeline is provided with a pressure sensor and a stop valve; and a long coal rock sample cavity is arranged in the test chamber, the length of the long coal rock sample cavity is 475 + / -100mm, and the diameter of the long coal rock sample cavity is phi 76 + / -10mm. The gas-liquid temperature rise adsorption expansion condition can be more truly simulated, and the mutual influence in the coal rock sample temperature rise adsorption expansion process in different stratums can be more truly reflected. The gas-liquid seepage condition can be simulated truly, the mutual influence of seepage of gas and liquid in different stratums can be reflected truly, and the test efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of coal and rock sample simulation test equipment, and in particular relates to a test system for performing gas-liquid seepage simulation tests on long coal and rock samples. Background technique [0002] In different formations, the temperature of coal rock samples varies. At present, in the gas-liquid seepage test of coal and rock samples, multiple tests are carried out for different temperatures, and the test efficiency is low; and because the tests at different temperatures are independent, it is impossible to truly simulate the interaction of gas-liquid seepage in different formations. influence, there are certain limitations. Contents of the invention [0003] The present invention aims to provide a test system specially used for gas-liquid seepage simulation test of coal rock samples, which can more realistically simulate the gas-liquid seepage situation, more truly reflect the mutual influence of...
Claims
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IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/0826
Inventor 张东明王浩王磊蒋长宝彭守建王小蕾余北辰高恒杨瀚叶辰王晨宇李青霖
Owner CHONGQING UNIV