石油与天然气地质 ›› 2010, Vol. 31 ›› Issue (2): 198-205.doi: 10.11743/ogg20100210

• 勘探开发技术 • 上一篇    下一篇

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

 崔廷主1, 马学萍2   

  1. 山东胜利职业学院1; 中国海洋大学海洋地球科学学院2
  • 出版日期:2010-04-26 发布日期:2010-09-02

An application of 3D structural modeling to complex fault-block reservoirs——a case of the lower unit reservoir of Sha-3 Member in Block Wei-95,Mazhai Oilfield,Dongpu Depression

Cui Tingzhu1   Ma Xueping2   

  1. 1.Shandong Shengli Vocational College; Dongying; Shandong 257097; China;
    2.College of Marine Geosciences; Ocean University of China; Qingdao; Shandong 266100; China
  • Online:2010-04-26 Published:2010-09-02

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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。

关键词: 构造建模, 复杂断块, 断层模型, 马寨油田, 东濮凹陷

Abstract:

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.

Key words: structural modeling, complex fault block, fault model, Mazhai oilfield, Dongpu Depression