The evolution and preliminary genesis of the carbon isotope for coal measure tight gas: cases from upper paleozoic gas pools of ordos basin and xujiahe formation gas pools of sichuan basin, China
Abstract:In this study, the geochemistry data of 162 coal measure tight gas samples (77) samples from Ordos Basin, 85 samples from Sichuan Basin) is collected. Then, the carbon isotope evolution of coal measure tight sandstone gas is investigated. The result indicates that three features in carbon isotope evolution of coal measure tight gas appear. (1) The coal measure tight gas has a same feature as shale gas, that the carbon isotope of heavy gas would show a rollover with the decreasing wetness of gases. The correspo… Show more
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