The reservoir characteristics of marine shale and its effect on the adsorption of methane in Northern Guizhou |
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Authors: | Baocheng Jiao Yang Gu Zikang Xiao Siyu Shi Gang Zhao |
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Affiliation: | 1. School of Energy Resources, China University of Geosciences, Beijing, China;2. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism Ministry of Education, China University of Geosciences, Beijing, China;3. Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, China University of Geosciences, Beijing, China |
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Abstract: | AbstractThe reservoir characteristics of the Lower Paleozoic marine shale in Fenggang block of northern Guizhou are evaluated from three aspects: gas-bearing characteristics, petrological characteristics and reservoir space by a series of experimental data. The effect of total organic carbon content, kerogen type and clay mineral content on shale adsorption capacity is discussed. The results show that the reservoir characteristics of the Wufeng-Longmaxi Formation shale in the study area are conducive to the enrichment of shale gas. In the case of quantitative clay minerals, the chlorite content has a significant adverse effect on the methane adsorption of the samples. The shale gas methane adsorption has an excellent increasing trend with the increase of total organic carbon content. The type II1 organic matter is more conducive to the adsorption of methane than the type I organic matter. |
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Keywords: | Marine Shale the reservoir characteristics total organic carbon content the type of organic matter clay mineral adsorption |
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