Abstract：Post-stack seismic data inversion is conducted to estimate the wave impedance of formation then to calculate geophysical parameters (density，porosity and shale content)，which is the purpose of geologists. CCFY wave impedance inversion technique is recommended here. This technique results in high resolution in vertical and lateral directions，stable solution，multiple parameter sections (density，velocity and porosity). This technique has been used to solve a tough problem of ascertaming a permeable sand bed of Chang-6 reservoir group in Triassic system in Shanganning basin. Coincidence of predicted bed thickness is higher than 75%.It can offer very useful data for borehole-site design in oil field development.
陈永波, 潘建国, 徐旺林. 陆相地层渗透性砂层预测方法[J]. 石油地球物理勘探, 1999, 34(1): 93-98,118.
CHEN Yong-bo, PAN Jian-guo, XU Wang-lin. A prediction method for permeable sand bed in land facies formations. OGP, 1999, 34(1): 93-98,118.
