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首頁» 往期文章» 2014» Issue 2» 石油地質與地球物理

Petroleum Science >2014,??Issue 2:??200-210 DOI: https://doi.org/10.1007/s12182-014-0333-6

Variation and mechanisms of clastic reservoir quality in the Paleogene Shahejie Formation of the Dongying Sag, Bohai Bay Basin, China Open?Access

文章信息

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作者：Zhang Qin,Zhu Xiaomin,Ronald J Steel and Zhong Dakang
作者單位：

College of Geosciences, China University of Petroleum, Beijing 102249, China State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;College of Geosciences, China University of Petroleum, Beijing 102249, China State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;Department of Geological Sciences, The University of Texas at Austin, Austin, TX, 78712, USA;College of Geosciences, China University of Petroleum, Beijing 102249, China State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China

投稿時間：2013-04-19
引用方式：Zhang, Q., Zhu, X., Steel, R.J. et al. Pet. Sci. (2014) 11: 200. https://doi.org/10.1007/s12182-014-0333-6

文章摘要

Reservoir quality varies greatly in the Shahejie Formation in the Dongying Sag. It is essential to analyze the variation and mechanisms of reservoir quality for determining the controlling factors based on cores, porosity measurements and fluid inclusion techniques and so on. The sandstones in the fluvial, (fan) delta-front have the best reservoir quality due to the depositional conditions mechanically controlling the petrology configuration and the primary porosity, and chemically influencing the diagenesis and development of secondary pores. The activity of the boundary faults and the sedimentary facies dominate the variation of reservoir quality in different areas and intervals. The reservoir quality varies with the position of sandstone beds in different vertical models of sandstone and mudstone. This mainly arose from the strong cementation or strong dissolution in the sandstone caused by the diagenesis evolution of adjacent mudstone. With higher oil saturation reservoir quality is better because the hydrocarbon charge favors dissolution and restricts cementation. Diagenesis, depositional conditions and tectonic setting are the key controls of reservoir quality in the Shahejie Formation of the Dongying Sag.

關鍵詞

    Reservoir quality variation, clastic reservoir quality, hydrocarbon charge, vertical models of sandstone and mudstone, controlling factor