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Since gas hydrate was sampled by drilling in the Qilian Mountain permafrost in 2008, to investigate the source of the gas hydrate and the relationship between gas hydrate and the concomitant oil and gas indication (OGI) have become an important research focus. The rocks bearing gas hydrate and OGI from the Middle Jurassic strata in the Qilian Mountain permafrost, Qinghai, Northwest China were extracted...
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