READ Group has completed the first HybridVSPTM offshore Mexico. Using our new BigDipperTM 3000 cubic inch seismic source system, over 25,000 shot points were acquired in to a deep well in one spiral pass with seismic receiver coverage from total depth to surface. The data is being processed with a number of objectives that includes very large illumination maps to delineate the reservoir and redefining a complex geological model including steeply dipping structures and salt. This brings about a new age in large 3DVSP data acquisition and processing with our patented combination of 3C high temperature array technology with continuous fiber acoustic monitoring to surface. READ uses a specially adapted modular winch unit and has introduced new processing methods to handle the wealth of new data that HybridVSPTM brings.