On the basis of geological, hydrodynamic and 1D geomechanical models based on full-wave sonic log, results of AVO-inversion from 3D seismic survey, a 3D/4D sector geological and geomechanical model of the Verkhnechonskoye field has been constructed. A large number of vertical wells with the availability full-wave sonic log data and its uniform distribution over the field area allowed us to characterize the research interval in details in terms of elastic and strength characteristics. A wide range of input data was used to calibrate the model: MDT and XPT data, core laboratory studies, and hydraulic fracturing data.
It was the first time for the VCH1 and VCH2 groups formations of the Verkhnechonskoye oil and gas condensate field geomechanical model was introduced into the permanent geological and technological model of the field. A comprehensive approach has been implemented to assess the geomechanical risks of hydraulic fracturing over the field area with calibration based on the actual results of hydraulic fracturing.