三维构造建模在复杂断块油藏中的应用——以东濮凹陷马寨油田卫95块油藏为例
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摘要
基于三维地质建模技术,利用地震、钻井解释等资料,通过分析断层在空间的延伸及相互切割关系,建立了东濮凹陷马寨油田卫95块古近系沙三下亚段的构造模型,明确了研究区的构造特征,包括断层的走向和空间展布状况等。基础数据的准确性和可靠性是三维地质建模工作的关键,而马寨油田卫95块属于典型的复杂断块油藏,地层对比特征往往不明显,许多钻井上的断点位置很难准确识别,导致基础地质研究成果存在很多问题。在建模过程中,将三维建模软件特有的技术手段与基础地质研究相结合,在精细构造落实、精细地层对比等基础地质研究方面发挥了重要作用,解决了许多通过常规方法难以解决的问题,保证了模型的精度。
Based on the technique of 3D geological modeling and through analyzing the spatial distribution and mutual dessection of faults with interpreted seismic and drilling data,we have build a structural model for the lower unit of Paleogene Sha-3 Member in Block Wei-95,by which the structural features are recognized,including fault strike and spatial extension.The accuracy and reliability of basic data are crucial to 3D geological modeling,but Block Wei-95 is a typical complex fault-block reservoir,where the stratigraphic correlation is insignificant and the faults are difficult to be identified in many wells,resulting in a series of problems in basic geological studies.During this structural modeling,combining the special techniques of 3D modeling softwares with the basic geological study has played a significant role in several basic geological aspects such as the refined structure location and the refined stratigraphic correlation.Thus many problems that can not be solved by the conventional methods have been solved here,and the model precision has been guaranteed.
Based on the technique of 3D geological modeling and through analyzing the spatial distribution and mutual dessection of faults with interpreted seismic and drilling data,we have build a structural model for the lower unit of Paleogene Sha-3 Member in Block Wei-95,by which the structural features are recognized,including fault strike and spatial extension.The accuracy and reliability of basic data are crucial to 3D geological modeling,but Block Wei-95 is a typical complex fault-block reservoir,where the stratigraphic correlation is insignificant and the faults are difficult to be identified in many wells,resulting in a series of problems in basic geological studies.During this structural modeling,combining the special techniques of 3D modeling softwares with the basic geological study has played a significant role in several basic geological aspects such as the refined structure location and the refined stratigraphic correlation.Thus many problems that can not be solved by the conventional methods have been solved here,and the model precision has been guaranteed.
引文
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9杨少春,王瑞丽.不同开发时期砂岩油藏储层非均质三维模型特征[J].石油与天然气地质,2006,27(5):652~659
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12隋淑玲.河流相储层三维流动单元模型建立———以孤东油田七区馆上段为例[J].油气地质与采收率,2005,12(3):12~14
2雷利安.濮城南区沙二上2+3油藏精细描述及剩余油分布研究[D].北京:中国地质大学(北京),2006:1~20
3王炜,胡望水,官大勇等.储层构造建模———以h12沙三中4-8砂组建模为例[J].内蒙古石油化工,2006,(1):126~128
4裘怿楠.储层地质模型[J].石油学报,1991,12(4):55~62
5 Smith R,Mφller N.Sedimentology and reservoir modelling of theOrmen Lange field,mid Norway[J].Marine and Petroleum Geolo-gy,2003,601-613
6 Xu S J,Zhang X,Zhang J L.Application of Computer Modeling onGeological Structures in the Upper Second Member of Shahejie For-mation in the Eastern Area of the Pucheng Oil field[A].Jiang Y.Proceedings of first international conference of modeling and simu-lation[Z].Nanjing:World Academic Union,2008.282-285
7 Clayton V D.Geostatistical reservoir modeling[M].London:Ox-ford University Press,2002.1-155
8吴胜和,金振奎.储层建模[M].北京:石油工业出版社,1999.1~10
9杨少春,王瑞丽.不同开发时期砂岩油藏储层非均质三维模型特征[J].石油与天然气地质,2006,27(5):652~659
10佘德平,曹辉,郭全仕.断裂系统解释与储层预测中的三维相干技术[J].石油与天然气地质,2007,28(1):100~105
11张世明,万海艳,戴涛,等.复杂油藏三维地质模型的建立方法[J].油气地质与采收率,2005,12(1):9~11
12隋淑玲.河流相储层三维流动单元模型建立———以孤东油田七区馆上段为例[J].油气地质与采收率,2005,12(3):12~14
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