Shallow Seismic Imaging for Land Nodal Seismic Data

Land nodal seismic acquisition system is getting widely used for oil and gas exploration with easy deployment. It is well known a proper tool for varied topographic area. In this study we applied this land nodal system to shallow exploration. For imaging the shallow subsurface we conducted reverse time migration (RTM) after preprocessing the data set such as trace editing, muting, bandpass filtering, F-K filtering, and Spiking deconvolution. The velocity model for RTM was generated from smoothing interval velocities which converted by Dix equation. Since there was no well log data in the field site, we could not verify the result of RTM. If we could get more reasonable velocity model, we could get clear shallow image.