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2011•Journal of East China Institute of TechnologyRequires access

Research on Sedimentary Facies of Chang 6~1 Oil Reservoir Group of WesternMahuangshan Area in Ordos Basin

Yanqin Wang

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Abstract

By comprehensive understanding of more than 12 wells in rock core characteristics and sedimentary structures characteristic in study area,combining logging data,distribution and fine comparison,the sedimentary environment of the study area are analyzed,and 6 kinds of sendimenty structures,5 kinds of the main sedimentary microfacies and 6 kinds of micro-contact styles are identified.The results show that Chang 61 formation is front of delta.Anti-rhythm is mainly in vertical and positive rhythm in short period.It reflects the process of constant progradation.

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What this paper is about

By comprehensive understanding of more than 12 wells in rock core characteristics and sedimentary structures characteristic in study area,combining logging data,distribution and fine comparison,the sedimentary environment of the study area are analyzed,and 6 kinds of sendimenty structures,5 kinds of the main sedimentary microfacies and 6 kinds of micro-contact styles are identified.The results show that Chang 61 formation is front of delta.Anti-rhythm is mainly in vertical and positive rhythm in short period.It reflects the process of constant progradation.

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Available abstract

By comprehensive understanding of more than 12 wells in rock core characteristics and sedimentary structures characteristic in study area,combining logging data,distribution and fine comparison,the sedimentary environment of the study area are analyzed,and 6 kinds of sendimenty structures,5 kinds of the main sedimentary microfacies and 6 kinds of micro-contact styles are identified.The results show that Chang 61 formation is front of delta.Anti-rhythm is mainly in vertical and positive rhythm in short period.It reflects the process of constant progradation.

Key concepts: Facies, Geology, Sedimentary rock, Structural basin, Progradation, Group (periodic table), Geomorphology, Sedimentary depositional environment

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