Abstract:Seismic While Drilling (SWD) is a new technique developed in the 90s of the last century,which taken vibration of drill-bit in drilling process as a seismic source to conduct seismic survey that can make real-time prediction of the detail of formation structure ahead of drill-bit and reduce the risk of drilling.Starting from the theory and real data processing,the paper systematically studied the propagation characteristics of wavefields of direct wave,reflected wave and other major interference waves;discussed the separation and attenuation methods of interference waves according to difference in 3D spatial propagation characteristics of a variety of wavefields;the noise-eliminated processing of SWD data gained a ideal effects.The studied results of the paper have guiding meaning to SWD exploration.
罗斌, 王宝彬. 随钻地震波场空间传播特征研究及应用[J]. 石油地球物理勘探, 2005, 40(1): 58-64,70.
Luo Bin, Wang Bao-Bin. Study and application of spatial propagation characteristics of SWD seismic wavefield. OGP, 2005, 40(1): 58-64,70.