IN-SITU PROCESSING OF LOW SIGNAL/NOISE RATIO SEISMIC DATA FROM THE LOTUS BLOCK
YANG Wen-jun1, ZHANG Fu-xiang2, DUAN Yun-qing1, LIU Xiao-ming2, WANG Xue-fang3
1. China University of Geosciences, Beijing 100083, China;
2. Geophysical Prospecting Company of JOECO, Yangzhou 225000, China;
3. China University of Mining & Technology, Beijing 100083, China
In this paper, the problems of static correction and low signal/noise ratio in the complex surface seismic data were analyzed and studied on the basis of large quantities of experiments and analyses. The method in which the datum static correction is combined with the refraction static correction was adopted for effectively solving the problem of field static correction caused by the complex surface and low velocity layer. Such factors as surface wave, low-frequency disturbance and regular linear disturbance resulting in low signal/noise ratio of the seismic data were successfully suppressed. The difference in the wavelet of shots was solved effectively with the surface consistency deconvolution technique.
杨文军, 张福祥, 段云卿, 刘小明, 王雪芳. LT区低信噪比地震资料现场处理方法[J]. 物探与化探, 2008, 32(3): 331-334.
YANG Wen-jun, ZHANG Fu-xiang, DUAN Yun-qing, LIU Xiao-ming, WANG Xue-fang . IN-SITU PROCESSING OF LOW SIGNAL/NOISE RATIO SEISMIC DATA FROM THE LOTUS BLOCK. Geophysical and Geochemical Exploration, 2008, 32(3): 331-334.
