论文部分内容阅读
地震层速度与地层孔隙度、剩余孔隙度之间存在一定的函数关系。而剩余孔隙度又反映了地层的压实状态。运用这一关系可通过层速度预测断裂的封闭性。具体步骤为 ( 1 )用回归分析确立孔隙度与深度关系曲线 ;( 2 )根据剩余孔隙度 ,在区域上进行压实级别划分并判断断层的封闭性。这一方法在塔里木盆地轮台断裂附近进行了应用 ,取得了较好效果。
Seismic velocity and formation porosity, residual porosity between the existence of a certain functional relationship. The remaining porosity reflects the compaction status of the formation. Use this relationship to predict fracture closure by layer velocity. The specific steps are as follows: (1) Using regression analysis to establish the relationship between porosity and depth; (2) According to the residual porosity, compaction level is divided in the area and the sealing of the fault is judged. This method has been applied in the vicinity of the abutment fault in the Tarim Basin and achieved good results.