Survey on Origin and Evaluation Methods of Low Resistivity Reservoirs in Oilfields West of South China Sea

Abstract

Abstract: By core observation and data analysis of conventional well logging and electric imaging logging in the oilfields west of South China Sea, it was revealed that low resistivity of oil and gas reservoirs was not only caused by the deep mud invasion and thin oil and gas reservoir, but also by the sedimentary environment. Some effective evaluation methods were summarized. Good exploration results have been obtained in the oilfields in South China Sea, based on laying emphasis on core analysis, integrating regional geology sedimentary and diagenesis study, and selecting appropriate logging methods and series.

Key words: low resistivity, origin, irreducible water saturation, nuclear magnetic resonance, South China Sea

Luo Zhi, Yang Yuqin, Liu Jianxin, Li Guojun and Zeng Xuezhi. Survey on Origin and Evaluation Methods of Low Resistivity Reservoirs in Oilfields West of South China Sea[J]. China Petroleum Exploration, 2012, 17(1): 47-50,7.

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Survey on Origin and Evaluation Methods of Low Resistivity Reservoirs in Oilfields West of South China Sea

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