Abstract:The processing of crass-borehale seismic data is different from that of general 2D and 3D seismic data.Cross-borehale seismic data are ususlly detected in three-component observation system,direct P-waves are strong in x and y components but weak in x component,and direct S-waves are strong in x component but weak in x and y components.In view of the facts,P-waves are first separated from S-waves in data processing.Then the following measures are taken respectively: ·Interval velocity section in cross-borehole medium can be derived from tamographic inversion of first break times. ·Upgoing and downgoing reflection waves are processed in the way similar to that for VSP CDP data processing,so that migration section of crass-borehole reflection waves can be produced nicely. The processing results of real cross-barehole seismic data show that the processing method,including software and processing steps,can be used to bring both high-resolution tomographic results and reflection sections of crass-borehole seismic data.
何惺华, 王玉玲, 刘跃华, 黄史浩. 井间地震资料处理方法及效果[J]. 石油地球物理勘探, 1997, 32(1): 81-89.
He Xinghua, Wang Yuling, Liu Yuehua, Huang Shihao. A new processing method cross-borehole seismic data and its effect. OGP, 1997, 32(1): 81-89.