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渤南五区浊积水道砂体储层构型研究
李志鹏1,杨勇1,侯加根2,郭迎春1
(1.中国石化胜利油田勘探开发研究院,山东东营 257061;2.中国石油大学地球科学学院,北京 102249)
摘要:
根据岩心、露头和测井等资料,结合密井网条件下的连井剖面,在浊积水道沉积模式的指导下,建立浊积水道砂体内部构型模式,研究渤南5区沙三段9砂组浊积水道构型。结果表明:浊积水道主要发育6种岩相,纵向上构成完整或不完整的鲍马序列;单砂体受古地形控制平面上分东、西两个水系,垂向叠加样式主要为相隔式和浅切式,平面上展布样式主要为交切连片式、交切条带式和孤立条带式;单一水道砂体一般厚度为5~10m,宽度为400~800 m,平均为570 m;主要发育泥质、钙质和物性3种隔夹层,单砂体间隔层较稳定,连续性好;单一水道砂体内部夹层发育少,稳定性差,倾角小。
关键词:  浊积砂体  浊积水道  储层构型  隔夹层  渤南油田
DOI:10.3969/j.issn.1673-5005.2015.05.005
分类号::TE 122.2
基金项目:中国石油化工股份有限公司课题(P12137)
Reservoir architecture of turbidity channels in the 5th area of Bonan Oilfield
LI Zhipeng1, YANG Yong1, HOU Jiagen2, GUO Yingchun1
(1.Research Institute of Exploration and Development, Shengli Oilfield, SINOPEC, Dongying 257061, China;2.School of Geosciences in China University of Petroleum, Beijing 102249, China)
Abstract:
Based on the dispositional model of turbidity channel, we established a reservoir architecture model of turbidity channels. We studied the reservoir architecture of the turbidity channels in the 9th sand group of E2s3 in Bonan Oilfield using the rock cores, outcrop, logging and the well pattern of the well sections. The results reveal that there are six types of lithofacies in the turbidity channels. The lithofacies forms are the complete or incomplete Bouma Sequence. The monosandbodies are divided into two river systems by the ancient landform. Vertically the monosandbodies are in apart form and shallow erosion form. In the horizontal plane, the monosandbodies are in intersecting flaky form, intersecting banded form and isolated banded form. The single channel sand bodies are mostly 5-10 m thick; the channel widths are 400-800 m, with a 570 m average. There are muddy interlayer, calcareous interlayer and physical interlayer. The interlayers between the monosandbodies are stable and in good continuity. On the other hand the interlayers in the single channel sand body are less and unstable. The dip angle of the interlayers in the single channel sand bodies is small.
Key words:  turbidity sand  turbidity channel  reservoir architecture  interlayer  Bonan Oilfield
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