Multifunctional dynamic pollution evaluation device of coalbed drilling fluid
A pollution evaluation and drilling fluid technology, which is applied in the direction of measuring devices, earthwork drilling, wellbore/well components, etc., can solve the problems of unsatisfactory actual production and single research, and achieve modularization of experimental software, avoiding stress effects, and process flow clear effect
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[0017] The multifunctional coal seam drilling fluid dynamic pollution evaluation device consists of a low-pressure pressure regulating valve 1, a gas booster pump 2, a gas high-pressure gauge 3, a high-pressure pressure regulating protection valve 4, a high-pressure pressure reducing valve 5, a back pressure boosting valve 6, and mud pollution Valve 7, low pressure regulating protection valve 8, high pressure boosting valve 9, low pressure pressure reducing valve 10, low pressure boosting valve 11, six-way valve seat 12, inlet pressure gauge 13, axial pressure boosting valve 14, axial pressure gauge 15. Triaxial stress coal core holder 16, outlet pressure gauge 17, metering axial pressure pump 18, back pressure gauge 19, back pressure regulator 20, back pressure valve 21, gas mass flow meter 22, gas-water separator 23. Electronic balance 24, computer acquisition board 25, mud container 26, low-pressure pressure sensor 27, high-pressure pressure sensor 28, oven 29, high-pressure...
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