【摘要】 三维地震数据在发展早期只用于识别构造异常,如今可用于非常规气田勘探开发,如预测岩石的弹性常数,识别岩石的各向异性等信息。另外三维地震数据可利用岩溶与其上覆地层的波阻抗来识别岩溶,寻找相应的页岩气藏。其中横波分裂可用于勘探开发,通过横波分裂方向是否与最大水平主应力方向平行来判断裂缝密度。更多还原

【Abstract】 In early period of 3D seismic data is only used to identify structural abnormalities,now it can be used in abnormal gas exploration and development.It can be used to predict the elastic constants of rock,the identification of the rock anisotropic information.In addition the 3D seismic data can use karst and its overlying strata wave impedance to identify different karst,and find the corresponding shale gas reservoir.It can also be used for exploration and development of shear waves.Through whether shear wave splitting direction parallels maximum level stress direction,the crack density can be judged.更多还原