The main problem of gas geophysical exploration in LD region is distinguishing strong amplitude abnormity and bright spot bearing gas. In the previous geophysical applying technique research, as we don't think much of basic job about petrophysics analysis and seismic data preserved amplitude processing etc, and lack of analysis of applicable condition of single geophysical technique, this produces many results when we use some available techniques in practical production, it debases precision of research result. The text mainly expatiates during estimating valuable geological target of LD20-1 structure, we apply multi-seismic attributes predicting technique include general impedance inversion, elastic wave inversion, MDI multi-attributes analysis, absorption analysis and AVO technique etc. Estimate valuable geological target of LD20-1 structure well, and get distinct result.
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