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| Architecture analysis of braided river reservoir |
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LIU Yu-ming1,HOU Jia-gen1,WANG Lian-min2,XUE Jian-jun2,LIU Xian-he2,FU Xiao-liang2
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(1.School of Resource and Information Technology in China University of Petroleum, Beijing 102249 f China;2. 6th Oil Production Plant of Dagang Oilfield Branch Comapany, PetroChina, Tianjin 300280, China)
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| Abstract: |
| Taking the upper Ng2 formation of Y3 block in YSM Oilfield as a case, the architecture analysis method of braided river reservoir was proposed. Based on the former results about outcrop and modem deposition study，using dynamic and static data, the singe mid-channel bar was identified and anatomized. The 3D architecture model was built. The results show that the interlayer in the think sandbody of braided river reservoir, which was associated with the bounding surface, was always unstable in the center part of the mid-channel bar, where the remaining oil was always on the top. The inlerlayer was relatively stable in the lateral part of the mid-channel bar , where the remaining oil was accumulated in the relatively homogeneous segments separated by the interlayer. |
| Key words: reservoir architecture braided river mid-channel bar remaining oil YSM Oilfield |
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