Sequence Stratigraphy and Non-Structural Reservoir of Upper Part of the Third Member of Shahejie Formation in Dawangzhuang Area

Xinjiang Petroleum Geology ›› 2009, Vol. 30 ›› Issue (1): 57-60.

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Sequence Stratigraphy and Non-Structural Reservoir of Upper Part of the Third Member of Shahejie Formation in Dawangzhuang Area

ZHANG Da-zhi^1,2, JI You-liang³, HAN Chun-yuan⁴, CHU Li-lan⁵

1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
2. Hangzhou Institute of Petroleum Geology, Hangzhou, Zhejiang 310023, China;
3. China University of Petroleum, Beijing 102249, China;
4. Huabei Oilfield Company,PetroChina, Renqiu, Hebei 062552, China;
5.Research Institute of Exploration and Development, Daqing Oilfield Company Ltd., Daqing,Heilongjiang 163712, China

Received:2008-06-10 Revised:2008-08-01 Online:2009-02-01 Published:2020-08-21

Abstract

Abstract: The upper part of the third member of Shahejie formation in Dawangzhuang area in Raoyang sag is a third-order sequence and can be divided into the low stand system tract, the transgressive system tract and the high stand system tract. The low stand system tract is composed of two parasequence sets. Both the transgressive system tract and the high stand system tract are composed of one parasequence set, individually. Through the research of sedimentary microfacies and sandbody distribution of parasequence sets of the low stand system tract, it is found that there are three delta depositional systems in this period. The most favorable sandstone body is the subaqueous distributary channel and sheet bar of the delta front subfacies. According to the structural characteristics and sandbody distribution relationship, the future exploration targets non-structural reservoir in Dawangzhuang area is proposed.

Key words: Raoyang sag, Dawangzhuang area, sequence stratigraphy, sedimentary system, subtle trap

CLC Number:

TE112.422

ZHANG Da-zhi, JI You-liang, HAN Chun-yuan, CHU Li-lan. Sequence Stratigraphy and Non-Structural Reservoir of Upper Part of the Third Member of Shahejie Formation in Dawangzhuang Area[J]. Xinjiang Petroleum Geology, 2009, 30(1): 57-60.

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Sequence Stratigraphy and Non-Structural Reservoir of Upper Part of the Third Member of Shahejie Formation in Dawangzhuang Area

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