井震联合精细断层模型的构建方法

Methods tailored for accurate development of fault model with logging and seismic data

为实现多约束条件下断层模型的精确构建,以朝阳沟油田朝84-6井区的地质构造模型为例,结合地质、地震及测井资料,在大量实践的基础上提出多边形投影、深度域地震体矫正、断点矫正三种精细修正断层模型的方法,同时利用深度域蚂蚁体与时间域地震体相结合的方法补充解释小断裂,最终以井震联合较为完善的断层模型作为骨架,精细构建构造模型。结果表明,该方法构建的断层模型较符合原始地震数据体,并在模型构建过程中弥补了地震解释工作的不足,实现对断层解释的检验和修正。

This paper is based on the fault modeling of Chaoyanggou field C84-6 well area and uses Petrel software to develop the fault model by three methods, such as ＂projection of polygon correction of depth domain seismic body＂ and ＂correction of breakpoints＂. The paper proposes a method to inter- pret the minor fractures additionally through ant body and original seismic body. The accurate fault model can work as the skeleton to build final geological structure model. The results show that these methods can adapt the fault models to its original seismic data, along with the ability to check and readjust the fault interpretation.