Experimental method and device for simulating composite multi-layer gas reservoir exploitation
An experimental device and gas reservoir technology, which is applied in the field of simulating the exploitation of composite multi-layer gas reservoirs, can solve the problems that the original reservoir temperature conditions cannot be simulated, the liquid phase cannot be considered, and cannot be promoted
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[0066] like figure 1 As shown, the present invention provides an experimental device for simulating the coalbed methane / tight sandstone gas / shale gas combined bed mining process, including an injection system 1, a coal seam model system 2, a tight sandstone layer model system 3, a shale model system 4, Back pressure system 5, recovery system 6 and data acquisition system 7.
[0067] In the injection system, the injection system is connected to the inlet valve 2901 of the coal seam model system, the inlet valve 361 of the tight sandstone layer model system, and the inlet valve 4801 of the shale model system through the first multi-channel valve (six-way valve) 81 . The high-purity methane high-pressure gas cylinder 11 is connected to the valve 191, the booster pump 13, and the gas intermediate container 15 in sequence. The high-purity methane high-pressure gas cylinder 11 provides a stable gas source for the gas intermediate container 15, and the booster pump 13 is connected to...
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