Sweet spots discrimination in shale gas reservoirs using seismic and well-logs data. A case study from the Worth basin in the Barnett shale

Here, we present a case study of sweet spots discrimination of the Barnett shale gas reservoir located in the Ft Worth basin (USA) using seismic and well-logs data. Chaos and the ANT-Tracking seismic attributes such are used for natural fractures system identification from seismic data, the map of the Poisson's ratio obtained from the upscaling of well-logs data of a horizontal well is able to provide an information about the drilling direction which is usually in the minimum horizontal stress profile, the map of the Poisson ratio can provide an information about hardness of the source rock. The set of well logs data is used for geomechanical and petrophysical discrimination of the sweet spots, after discrimination the identified zones are useful for reserves estimation from unconventional shale gas reservoir. (C) 2014 The Authors. Published by Elsevier Ltd.