井间地震三维分块正演模拟方法研究  

Forward simulation method for cross-well seismic of 3D block forward modeling

作　　者：李辉峰[1] 强南 

机构地区：[1]西安石油大学地球科学与工程学院,陕西西安710065

出　　处：《石油地质与工程》2016年第3期17-20,146,共4页Petroleum Geology and Engineering

基　　金：国家科技重大专项"海上斜井井间地震资料成像处理技术及应用研究"(2011ZX05024-001-03)资助

摘　　要：由于开展井间地震勘探的目标井多数为不共面的水平井和斜井,原本为井间地震二维问题转变为三维问题。一般的射线正演方法不能解决复杂构造的运动学正演问题。利用三维分块技术和逐段迭代法提出适用于复杂构造三维井间地震的三维分块正演模拟方法,并编写了井间地震复杂构造三维分块正演模拟程序,实现了井间地震三维分块正演模拟算法。对井间的多种复杂模型进行正演模拟分析表明,该方法及其程序正演结果正确,能够完成各种复杂构造情况的井间地震三维运动学正演。Since most wells used for cross-well exploration are horizontal wells,not declined wells,original issues of cross-well seismic have converted from2 D to 3D.But issues of kinematic forward modeling in complicated structures cannot be solved through conventional forward simulation methods such as trial ray method and segmentally-iterative ray tracing method.Therefore,program of 3D block forward modeling is raised from3 D block and segmentally-iterative ray tracing method.Programs of 3D block forward modeling for cross-well seismic are written with Qt and VC++ 6.0in this paper,fundamentals of 3D block forward modeling incross-well seismic has been actualized.An analysis of seismic forward model about many complicated cross- well models has been made by using its procedure.The results of forward computerized methods show that methods and procedure are applicative.

关 键 词：井间地震 三维分块 逐段迭代 正演模拟 

分 类 号：P631.422[天文地球—地质矿产勘探]