Rus Eng

INPRES - Seismic Interpretation System

INPRES  a Linux OS Seismic Interpretation System running on Pentium-compatible    computers    is    intended    for   an   integrated interpretation of 2D/3D seismic data in combination with well logging data and general geologic information at all phases of exploration and PLT operations.

The use  of  INPRES  system substantially enhances effectiveness and   comprehensiveness   of   structural   imaging  and  prediction  of reservoir rock properties on account of applying state-of-the-art technologies of seismic data interpretation based on a thorough use of available  knowledge  of  geology  and geologic regularities in a study area,  as  well  as  on the experience of qualified personnel performing commercial  interpretation projects and on latest powerful mathematic analytical  methods  applied  to  geophysical information. 3D geologic models   generated   at  the  INPRES  interpretation  output  provide rational  and  effective  solutions to detecting and outlining subsurface prospects,   to   assessing  petrophysical  parameters  of  rocks  and  to estimating hydrocarbon resources.

In   comparison   with  similar   interpretation   systems,  INPRES possesses a number of advantages and offers a data interpreter unique capabilities, such as:

  • Interpretive post-processing
  • Auto mapping of boundaries; recognition, tracing and assessment of faults and fault tightness to migrating fluids; detection of hydrocarbon traps
  • Interpretation of geologic structure of complex-architecture prospects
  • Effective use of various analytical approaches, such as sedimentation genesis analysis, seismic facies analysis and sequence-stratigraphy analysis
  • Prediction of reservoir  properties from stochastic seismic inversion and AVO-analysis along with purposeful application of geostatistical methods and neural networks
  • Reliable tie of reflections to stratigraphy and geologic informativity diagnostics of reflections and reflection attributes through mathematic seismic modeling
  • Building 3D structural petrophysical models from a set of 2D/3D seismic and well logging data for prospects of study, and animated display of such models
  • Auto determination of map accuracy and petrophysical interpretation reliability along with estimation of hydrocarbon resources and of geologic risks.


INPRES   shows   high   rates  of  prediction  accuracy confirmed by drilling  and  is  extensively  used  in  a  good  number  of Russian geophysical and oil companies and abroad.

Over  100 INPRES  licenses  have  been  sold  to  24  companies  of Russia, Ukraine, PR  China,  Vietnam  and  Poland.   Tens  of  projects  are  completed  annually  in  the INPRES Interpretation  System  for  data  acquired  in  West  Siberia,  North Caucasus, East-European platform, South-East Asia, North Africa and other regions of the world.

Largest interpretation projects completed by CGE's INPRES team include:


Projects and amounts


West Siberia (1995-2007)

Completed structural images and predicted reservoir properties were used to estimate hydrocarbon reserves, run hydrodynamics modeling and to plan exploration and development drilling operations

Palyan     3D90 km ²8 wells.
Komsomol  3D200 km ²
West Samotlor 2D500 km ²
North-Komsomol 2D1700 km 74 wells.
North-Taras2D570 km 76 wells.
Kraynyaya  3D500 km ²
East-European Platform (1995-2006)

Predicted reservoir properties were used to plan exploration drilling operations

South-Serg2D380 km 2 wells.
Upper-Vozey 3D190 km ²11 wells.
Caspian Sea (2004-2005)

Predicted reservoir properties were confirmed by subsequent exploration drilling data

Shirrotnaya 3D212 km ²3 wells.
Rakushechnaya 2D867 km 3 wells.
Vietnam (1997-2006)

Predicted basement reservoir properties were used to estimate hydrocarbon reserves and to run hydrodynamics simulation modeling

White Tiger3D330 km 150 wells.
Soi 3D370 km ²1 wells.

Structural images were produced and crystalline basement fracturing was predicted;

4 exploratory wells drilled according to issued recommendations were successful

Dai Hung3D220 km ²9 wells.
Doi Moi3D185 km ²no wells.
Algeria (2000-2007)

Regional structural imaging and detailed structural imaging were completed, and reservoir properties were predicted;
5 exploratory wells were drilled and 3 fields were discovered following the issued recommendations

Block 245-South 3D565 ²
2D6700 11 wells.
Kazakhstan (2005)

Completed structural images and predicted reservoir properties were used to estimate hydrocarbon reserves

Tenge3D150 ²23 wells.
Venezuela (2005)

Prospects were brought out and mapped; hydrocarbon resources were estimated

La Vela3D500 ²
2D250 5 wells.
Venezuelan Bay 2D5000 3 wells.
Libya (2006)

Prospects were delineated

Block 692D1650
Block 1622D1270
Block 822D2087
Iran (2006-2007)Prospects, including subthrust prospects, were mapped;
hydrocarbon resources were estimated
Moghan2D700 3 wells.
Lali2D2100 11 wells.