Considering of the “Multi-Complex” geological characteristics of the surface and underground in the Nanchuan District

a set of relatively complete ideas and technical processes for shale gas geophysics exploration have been explored through technical research on seismic data acquisition

processing and interpretation. And it has been successfully applied in shale gas exploration and development in Nanchuan District

including three aspects: ①In terms of acquisition

the quality of seismic data in limestone outcrops

karst caves and mined-out areas can be improved through real-time optimization of excitation points; ②In terms of processing

in order to improve the imaging effect

high-precision static correction technique in complex mountainous areas

the targeted processing technique in karst cave and goaf

and the Anisotropic Pre-Stack Migration Imaging technique are adopted; ③In terms of interpretation

on the basis of fine structure interpretation

the “sweet spot” prediction of shale reservoir is carried out from three dimensions: the enrichment of shale gas

the remodelling of reservoir and the driving of reservoir.

and in the process of developing shale gas

horizontal well drilling is guided by prediction technology of dynamic target buried depth and formation dip prediction technique for horizontal wells.