Abstract：In a situation that the underground feature is complex geologic structure,developing fault and gentle variation of lateral velocity,the 3-D prestack time migration is feasible method for improving the precision of migration imaging.The key achieving successful 3-D prestack time migration is to build up the reasonable 3-D migration velocity field besides having a set of hi-fi and high S/N ratio prestack data.The issues that the imaging of complex fault blocks cafft be identified by prestack time migration and targets below igneous rock before can be solved now by the practical 3-D seismic data process data in Gaoyou area of Jiangsu Oilfield.The correlation of drilling results is identical to processed results,proving that the 3-D prestack time migration technique is good method for solving the imaging of complex structure in Gaoyou area.
陈海洋, 石生林, 王智杰, 王明丰. 三维叠前时间偏移技术在江苏高邮凹陷的应用[J]. 石油地球物理勘探, 2008, 43(3): 279-283.
Chen Hai-yang, Shi Sheng-lin, Wang Zhi-jie, Wang Ming-feng. Application of 3-D prestack time migration in Gaoyou depression of Jiangsu Oilfieid. OGP, 2008, 43(3): 279-283.
