Static corrections methods in the processing of deep reflection seismic data
Xiaosan Zhu , Rui Gao , Qiusheng Li , Ye Guan , Zhanwu Lu , Haiyan Wang
Journal of Earth Science ›› 2014, Vol. 25 ›› Issue (2) : 299 -308.
Static corrections methods in the processing of deep reflection seismic data
Statics are big challenges for the processing of deep reflection seismic data. In this paper several different statics solutions have been implemented in the processing of deep reflection seismic data in South China and their corresponding results have been compared in order to find proper statics solutions. Either statics solutions based on tomographic principle or combining the low-frequency components of field statics with the high-frequency ones of refraction statics can provide reasonable statics solutions for deep reflection seismic data in South China with very rugged surface topography, and the two statics solutions can correct the statics anomalies of both long spatial wavelengths and short ones. The surface-consistent residual static corrections can serve as the good compensations to the several kinds of the first statics solutions. Proper statics solutions can improve both qualities and resolutions of seismic sections, especially for the reflections of Moho in the upmost mantle.
deep reflection seismic data / static correction / field static / refraction static / tomographic static / residual static correction
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