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

BASIN STUDY

Geological problem:

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


   proprietary algorithm of
      3D inversion
  complicated geology
 
reliable model

Solution:

GCIS - a proprietary software, based on a unique technology of a joint geological and geophysical data inversion, using gravity as an independent source of 3D information. The software is capable of creating geologically meaningful and detailed 3D models of complex sedimentary basins.

EXPLORATION

Geological problem:

Prospects identification and priority
ranking within the license area


   detailed 3D model
   
multi-layer reservoirs
 
economically sound
      opportunity ranking

Solution:

Seismic, well and gravity data-driven detailed 3D geomodel of the license area allows us to predict existence of complex, multi-layer oil and gas deposits. It can also be used for VOI (value of information) & priority ranking of further, more detailed surveillance and drilling opportunities, while minimizing expenses.

PRODUCTION

Geological problem:

Assessment of spatial variability of reservoir properties within proved deposits, saturation distribution and their impact on the optimization of appraisal and development drilling


  porosity
 
gas saturation
  hydrocarbons in-place
  recoverable reserves
  well flow rate

 

Solution:

Ability to accurately identify reservoirs, assess their properties (porosity & saturation) and inter-well spatial heterogeneity at up to 1 meter vertical resolution. Objectivity of the mapping is ensured through the incorporation of gravity-to-seismic and well log data inversion in “3D + 1D” mode.

MONITORING

Geological problem:

Mapping of production-induced changes within oil and gas reservoirs: pressure drop, gas saturation change, gas-water contact movement, identification of unswept zones


   4D gravimetric survey
   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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