Abstract

The most common method used in land seismic data processing is to calculate field statics from uphole surveys using elevations of shots & receivers, and the velocities & thickness of the near surface layers. In absence of up-hole data,. Shallow Refraction survey data were acquired to estimate the weathering layer thickness and velocities of weathering layer and sub-weathering layers which in turn is used for calculation of statics. The Field statics thus obtained is applied to seismic data, but the processed stacks could not bring out the desired output over the entire survey area. Only patchy reflections are observed at some places in different stack outputs both at shallower and deeper sections.