Sweet spots prediction through fracture genesis using multi-scale geological and geophysical data in the karst reservoirs of Cambrian Longwangmiao Carbonate Formation, Moxi-Gaoshiti area in Sichuan Basin, South China

Abstract Fractures play a vital role in reservoir transformation, but the distribution of faults and fractures is difficult to obtain by observing cores, which ultimately limits effective development gas dolomite reservoirs. We propose an integrated method that incorporates thin-section observations, three-dimensional (3D) seismic data, image logs interpret Cambrian Longwangmiao Carbonate Formation predict potential areas Moxi-Gaoshiti area Sichuan Basin, South China. Firstly, were well interpreted using automatic tracking 3D visualization technique based on new combination attribute symmetry ant tracking. Secondly, comprehensive analysis was conducted thin sections, paleogeomorphology, situ test results determine fracture types (corrosion structural fractures). The help us find sweet spot zones with good permeabilities, great significance reducing risk water production drilled wells field development.