DEPROIL - Your Partner in Complex Geological Settings

Services

AUTOMATED SYSTEM OF QUANTITATIVE INTEGRAL INVERSION OF GEOLOGICAL AND GEOPHYSICAL DATA IN 1D, 2D, 3D AND 4D

PREDICTION

Task:

Prediction of the most promising areas within oil and gas basins for licensing and exploration activities


   proprietary algorithm of 3D
      inversion
   reliable model
   
complicated geology

Solution:

Unique technology and proprietary software GCIS for joint inversion of geological and geophysical data using gravity as independent source of 3D information, which gives an opportunity to create geologically meaningful and detailed 3D models of complex sedimentary basins

EXPLORATION

Task:

Prospects identification and their priority ranking within license area


   detailed model
   
multilayered reservoirs
   
ranking with lower expenses

Solution:

Creation of detailed 3D geological-and-geophysical model for licence area, based on seismic, well and gravity data allows to predict multilayered oil and gas pools of complicated structure and to range them by priority for further detailed geophysics and drilling with lower expenses

OPTIMIZATION

Task:

Exploring reservoir distribution within proved deposits, saturation evaluation and optimization of appraisal and production drilling


   uniqueness
   
small-scale
   
objectivity

Solution:

Accurate reservoir identification and mapping of its inner heterogeneity within interwell space in 3D model, with up to 1 meter depth resolution, evaluation of porosity and saturation. Objective mapping is insured by including gravity to seismic and well log inversion in 3D+1D mode

EFFICIENCY MONITORING

Task:

Mapping of production-induced changes within oil and gas reservoirs: pressure drop, gas saturation change, gas-water contact rise, localization of unswept zone


   4D gravity
   detailed petrophysical reservoir
      model
   
quantitative estimation of
      changes

Solution:

Permanently updated 3D reservoir model based on time-lapse high precision gravity survey, calibrated by petrophysical density model and hydrodynamic data. Current reservoir parameters are determined from rock density change in the result of joint 4D+1D inversion with well logging data

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