摘要
断裂在油气运聚及成藏中具有重要的作用,断裂的识别精细程度影响油气藏及圈闭的刻画。泌阳凹陷张厂地区断裂复杂,断层平面组合难度大,低级序断层刻画困难,特别是北西向断裂,用常规技术难以识别。为了提高断裂刻画精度,解决断层平面组合的合理性问题,利用最大似然属性来精细研究张厂地区断裂展布,包括断层地震响应特征分析、断层成像技术增强和最大似然属性计算,解决了该区断裂刻画困难的问题,通过实钻证实了预测结果可靠。
As faulting plays an important role in hydrocarbon migration and accumulation, the fine degree of fault identification affects the characterization of reservoirs and traps. In Zhangchang area of Biyang sag, the faults are characterized by complexity and the great difficulties on the plane combination and on the description of low-level sequence faults, especially the NW ones, which are difficult to identify by conventional techniques. In order to improve the accuracy of fault description and solve the rationality of fault plane combination, the seismic maximum likelihood attribute was used to study the fault distribution in Zhangchang area, including the characteristic analysis of fault seismic response, the enhancement of fault imaging technology and the calculation of maximum likelihood attribute, which solved the problem of fault description in this area. The reliability of prediction results is verified through drilling practice.
作者
裴秀秀
PEI Xiuxiu(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Zhengzhou,Henan 450048,China)
出处
《石油地质与工程》
CAS
2020年第5期8-11,共4页
Petroleum Geology and Engineering
关键词
泌阳凹陷
最大似然属性
断层展布
Biyang sag
coherent technology
the maximum likelihood attribute
fault interpretation
