2 Sweeps or Not 2 Sweeps

 

The source effort in Vibroseis exploration and the amount of time invested in this component of the seismic project can be reduced by taking a look at how many sweeps are performed on each point. Field testing of the Vibroseis source into a 2D Line with acceptable fold and capturing each sweep individually at the test is needed. The individual sweeps can then be processed using differing number of total sweeps to determine the acceptable number of sweeps prior to the start up of the 3D Survey. Field Testing has indicated that there are Vibroseis sourced surveys that can be acquired with as few as 1 sweep and with higher fold. A discussion of time and costs within a Vibroseis 3D Survey and data samples from field testing will illustrate the value of fewer sweeps per Vibroseis source location within a 3D Survey.