Ocean-bottom cable data multiple suppression based on equipoise pseudo-multichannel matching filter
Wang Dong-Kai1,2, Liu Huai-Shan1, Tong Si-You1, and Zhu Wei-Qiang3
1. Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, China.
2. Geophysical Research Institute of Sinopec Shengli Oilfield, Postdoctoral Scientific Research Workstation of Sinopec Shengli Oilfield, Dongying 257000, China.
3. SINOPEC Geophysical Corporation Shengli Branch, Dongying 257000, China.
Abstract The effect of strong reflection interfaces, such as free surface, seabed, is strong; thus, the coupling of multiples and waves reduces the quality of ocean-bottom cable seismic data. Using the different polarity response of hydrophones and geophones to downgoing wave fields, dual-sensor summation can eliminate receiver-side multiples, enhance primaries, and improve the resolution of seismic data. We present a dual-sensor summation method based on the equipoise pseudo-multichannel adaptive matching filter. Compared with traditional methods, the proposed method is totally data driven and does not depend on the reflection coefficient; moreover, good results are obtained using synthetic and real data.
This research is supported jointly by the National Science Foundation Project (Grant No. 41176077 and 41230318).
Cite this article:
Wang Dong-Kai,Liu Huai-Shan,Tong Si-You et al. Ocean-bottom cable data multiple suppression based on equipoise pseudo-multichannel matching filter[J]. APPLIED GEOPHYSICS, 2015, 12(2): 179-186.
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