Complex surface and subsurface conditions in China's northern Tarim Basin make it impossible to record good 3D seismic data with conventional acquisition geometry. In addition, the thickness of the low-velocity layer varies from 3 to 150 m, making 3D static corrections a challenge.

To determine how to successfully record 3D data despite these obstacles, the Bureau of Geophysical Prospecting conducted a survey that combined regular and irregular acquisition geometry. For 3D static corrections, we carefully selected a control point for near-surface investigation, paid particular attention to the lithologic boundaries, and established an accurate near-surface model with the help of satellite...

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