Abstract

The Kuqa Depression in Western China exhibits complex surface and subsurface conditions. Previous poor-quality seismic data can hardly meet the precise evaluation and development demands of reservoirs today. In a new 3D seismic acquisition project, the techniques of low-frequency vibroseis, shallow-layer tomographic near-surface modeling, digital operation-supporting techniques, and the multi-information intelligent pre-design method were used. The quality of seismic data has been improved, and the identification accuracy of complex structures and reservoirs has increased.

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