辽河油田安1断块基岩顶部的裂缝识别与预测

Fracture Identification and Prediction in the Top of Base Rock of An - 1 Faulted - block in Liaohe Oil Field

通过对辽河油田北部安１断块三维地震资料的重新处理和解释，获取了瞬时倾角切片图、瞬时振幅切片图和基岩顶面构造图。利用这些图件及岩心分析资料，综合分析了安１断块基岩裂缝的分布及发育规律。根据裂缝发育特点和应力场分布规律，划分出安１断块基岩裂缝分布的三级分区。

The instantaneous dip and amplitude,and top surface structural map are prepared by reprocessing and interpreting 3D seismic data from An - 1 faulted - block in Liaohe oil field. Combined with core and fractal data, these maps are used to identify fractures in the top of base rock of An - 1 faulted - block and to predict fracture distribution. A three-degrees zonation of the fractures in interested area is proposed from fracturing regularity and stress distribution.