The channel stacking pattern under the control of sequence stratigraphicof Enping Formation in Lufeng area,Pearl River Mouth Basin

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  • 1.School of Energy Resources,China University of Geosciences,Beijing 100083,China;
    2.Shenzhen Oil Research Institute,China National Offshore Oilfield Corporation Limited-Shenzhen,Shenzhen 518000,China;3.CNOOC Research Institute,Beijing 100028,China

Received date: 2019-01-03

  Revised date: 2019-01-29

  Online published: 2019-05-29

Abstract

Based on the integrated utilization of cores,logging and seismic data,and according to the fluvial sequence stratigraphic theory,the channel stacking patterns of Enping Formation were analyzed.Enping Formation was divided into three 3rd-order sequences which were controlled by the variation of accommodation.The three channel stacking patterns were summarized:Thick-stacked delta plain braided distributary channels under low accommodation,thick-stacked or isolated delta front branch channels under middle accommodation,thin-isolated branch channels-sheet sand under high accommodation.Different channel stacking patterns have different reservoir characteristics.The thick-stacked delta plain braided distributary channels under low accommodation mainly formed structural reservoirs,and the thin-isolated branch channels-sheet sand under high accommodation mainly formed lithologic reservoirs.This analysis method has some reference significance for other similar areas.

Cite this article

Rui Zhi-feng, Deng Hong-wen, Yang Xiao-jiang, Li Xiao, Guo Jia . The channel stacking pattern under the control of sequence stratigraphicof Enping Formation in Lufeng area,Pearl River Mouth Basin[J]. Natural Gas Geoscience, 2019 , 30(5) : 701 -711 . DOI: 10.11764/j.issn.1672-1926.2019.01.011

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