【摘要】 基于井震结合的三维断层建模技术,提高了复杂断块基础地质研究工作的可靠性和准确性,采用新的技术方法和工作流程,拓宽了地质建模工作的研究范围,即从"一个特定的研究环节"变为贯穿整个油藏开发地质工作的综合研究项目。井震结合的三维断层建模技术,一方面可将断层建模与构造落实、地层对比等基础地质研究工作充分结合到一起;另一方面还可借用三维地质建模特有技术方法,以更高的技术要求重新开展基础地质研究。建立断层模型的具体步骤:首先,利用地震解释成果建立初步断层模型;其次,利用钻井断点位置进行三维空间校正;最后,针对无法解释的断点位置修改断层解释方案。在苏北盆地溱潼凹陷祝庄油田阜一段应用中,利用该技术对原构造解释方案和地层对比进行修正,调整了局部构造高点和断层断距,并新增断层一条,落实了断块内各级构造。更多还原

【Abstract】 The technology of 3D fault modeling based on well data and seismic data can improve the reliability and accuracy in basic geology study.Through adopting new technology and work process,the studying range of geology modeling can be broadened,and it is necessary to make it become a comprehensive research project throughout the geological work of reservoir development from a specific research process.On the one hand,fault modeling and basic geological study such as structure implementation and stratigraphic correlation can be fully combined through 3D fault modeling combined with well data and seismic data;on the other hand,basic geological research can be developed again with the higher technical requirements by the use of unique technical method of 3D geological modeling.Concrete steps of constructing fault model are given.Firstly,initial fault model can be established according to the seismic interpretation result;secondly,fault model can be corrected through the position of fault points in wells in 3D space;finally,fault interpretation schemes need to be modified because of the positions with fault point which can not be explained.In first member of Funing Formation,Zhuzhuang Oilfield of Qingtong Depression in Subei Basin,formal structure interpretation scheme and stratigraphic correlation are revised through the use of the technology,local structure high and fault throw are adjusted,and a new fault is interpreted,all structures of different levels are implemented.更多还原