【摘要】 针对辽河油区TJL及LWT地区叠前时间偏移速度场难以控制的情况,首次开展了井控速度建模技术研究。采用克里金插值法对测井资料进行插值,得到井速度模型,用该模型指导和约束叠前时间偏移速度建模,进一步提高速度场的精确性。最终,得到了TJL及LWT地区准确合理的叠前时间偏移速度模型,利用该速度模型进行叠前偏移处理,均取得了很好的成像效果。该项研究的成功应用不仅提高了辽河油田地震资料处理水平,对类似地区的地震资料处理也有一定的借鉴意义。更多还原

【Abstract】 The prestack time migration velocity field of TJL&LWT area in Liaohe Oilfield was difficult to be controlled.Firstly the well-control velocity modeling technology was researched.Kriging interpolation method was used for interpolating the logging data and establishing velocity model.The model was deployed to guide and constrain the prestack time migration velocity modeling,improve the accuracy of the velocity field.Eventually the exact and reasonable prestack time migration velocity model of TJL&LWT area was obtained,by using this model for prestack time migration processing,it achieves good image result.The success of this study improves seismic data processing in Liaohe Oilfield and it provides reference for seismic data process for the similar areas.更多还原