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Shale Gas Accumulation Conditions of Luzhai Formation in G Area, South China

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Proceedings of the International Field Exploration and Development Conference 2021 (IFEDC 2021)

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Abstract

China is rich in shale gas resources, and the Lower Carboniferous Luzhai Formation in the Guizhong Depression is one of the important areas for exploration. This study takes the mud shale of the Luzhai Formation in the G area as the object. Based on logging, mud logging and experimental data, the relevant geological parameters of the shale gas in the G area are studied, including shale reservoirs, gas-bearing properties and organic geochemistry, etc. On this basis, the shale gas accumulation conditions of the Luzhai Formation in the G area are analyzed. The result shows: The organic-rich mud shale sedimentary environment of Luzhai Formation in Area G is shallow water and deep water shelf argillaceous environment deposition of platform basin facies; The thickness of shale is relatively large, generally the cumulative thickness can reach 117 m, and the burial depth is moderate; In addition, the organic carbon content is between 0.69% and 2.44%, and the organic matter maturity reaches the high-mature-over-mature stage; On the other hand, the mineral composition is mainly carbonate rock, followed by clay minerals, and again quartz. Microcracks develop inside the organic matter. Due to the weaker structural damage, it is less affected by denudation, and has ideal shale gas preservation conditions. Comprehensive geology, hydrocarbon generation and reservoir characteristics, analysis of shale gas exploration potential in this area.

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Acknowledgments

The project is supported by National Natural Science Foundation (Number 2017ZX05032003–005).

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Authors and Affiliations

  1. The College of Geophysics and Petroleum Resources, Yangtze University, Wuhan, China

    Meng-lei Li

  2. Key Laboratory of Exploration Technologies for Oil and Gas Resources (Yangtze University), Ministry of Education Hubei Cooperative Innovation Center of Unconventional, Wuhan, China

    Meng-lei Li

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  1. Meng-lei Li
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Correspondence to Meng-lei Li .

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Editors and Affiliations

  1. College of Petroleum Engineering, Xi'an Shiyou University, Xi’an, Shaanxi, China

    Jia'en Lin

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Li, Ml. (2022). Shale Gas Accumulation Conditions of Luzhai Formation in G Area, South China. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2021. IFEDC 2021. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-2149-0_94

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