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2019
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Invention
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Device for simulating pressure relief of in-situ coalbed methane horizontal well in tectonically-... |
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Invention
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Coalbed methane horizontal well hole collapse pressure relief mining simulation test system. A co... |
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Invention
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Coalbed methane horizontal well hole collapse de-stressed mining simulation test method. A coalbe... |
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2018
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Invention
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Simulation test system for gas extraction from tectonically-deformed coal seam in-situ by depress... |
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Invention
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Simulation test method for gas extraction from tectonically-deformed coal seam in-situ by depress... |
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Invention
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System for extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizont... |
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Invention
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Method of extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizonta... |
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Invention
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Coalbed methane horizontal well hole collapse cave-building pressure relief developing system and... |
