Processing of Array Sonic Logging Data with Multi-Scale STC Technique

D045 Processing of Array Sonic Logging Data with Multi-Scale STC Technique G. Tao* (China University of Petroleum) F. He (China University of Petroleum) W.Z. Yue (China University of Petroleum) L.S. Li (Well Logging Company of China Dagang Petroleum Co.) & L.S. Li (Well Logging Company of China Dagang Petroleum Co.) SUMMARY We present a multi-scale semblance method for the separation and velocity (slowness) analysis of reflected waves and guided waves in borehole acoustic logging. It is especially designed for newly developed tools with ultra-long source-receiver spacing for acoustic reflection surveys. This new method is a combination of the dual tree