3D Land Broadband Data Needs Ultra Dense Acquisition

Land broadband is a challenge when compared to marine broadband as the seismic bandwidth is limited by many factors such as coherent noise, sampling, our ability to preserve bandwidth in data processing and last but not least the near surface effects.

We will address these issues with the vibroseis source and bandwidth can be also limited by our ability to generate sufficient low and high frequency energy that can penetrate the near surface. The key strep in a successful spreading of onshore broadband seismic, especially in the Middle East will be our ability to successfully deal with the near surface effects limiting the bandwidth and we will see that the key element to solve this problem is to dramatically increase the sampling density of the 3D acquisition designs in order to generate data sets where all the noise are properly sampled and never aliased.

Borehole seismic can also be used as a tool to study and quantify the surface seismic bandwidth high end with the optimum one achieved in borehole seismic by Walkaways and or 3D VSPs.