Title: Distribution of reservoir sandbodies of the 3rd member of shahejie formation,western of boxing sub-depression
Abstract: Lithologic traps are the main plays for the further exploration of Boxing Sub-depression.The distribution of reservoir sandbodies is the key factor for the exploration of lithologic traps.This paper focused on the analysis of reservoir sandbodies,including the types,the stratigraphic position and distribution of the sandbodies of the 3rd Member of Shahejie Formation,Western of Boxing Subdepression.Three kinds of reservoir sandbodies are recognized in studied area,which are turbidite fan,braided-delta front and near-bank subaqueous fan.The turbidite fan is the most favorable reservoir to lithologic traps.The favorable members for lithologic traps are the rising hemi-cycles of MSC5,MSC6,MSC7,MSC8 in light of analysis on the stratigraphic position of discovered oil and gas,in which the turbidite fan occurs and the petroleum –forming conditions are better.South-east area of Gaoqing fault is the favorable area for reservoirs in MSC8 and the depression area under the slope break of south slope is the favorable area for reservoirs in MSC5,MSC6,MSC7.Based on compressive analysis,three favorable areas are predicated,which are the depression area under the slope break of south slope,the thrown wall of Gaoqing fault and the region between Well Gao24 and Well Gao 27.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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