Geological & Geophysical Services

Our technical staff has extensive geological consulting experience with complex structural and stratigraphic fields throughout the world, including many with unconventional reservoirs such as fractured basement, tight gas, and coalbed methane. Geological and geophysical maps are fully integrated with production and engineering data to ensure reliable estimates of reserves potential. NSAI has performed field characterization and reserves assessments that range from exploration areas and early appraisal drilling to fully developed fields. Our experience covers most producing basins in the world and a wide range of sedimentary depositional environments including continental, fluvial, deltaic, marine, and deepwater. Well log correlation with integrated petrophysical, production, and seismic data is integral to all our reservoir studies.

  • Exploration resources assessments
  • Subsurface structural interpretation and mapping
  • Sequence and seismic stratigraphic analysis and trap identification
  • Basin, field, and regional studies
  • Reservoir volumetric estimation
  • Probabilistic risk assessment
  • 2-, 3-, and 4-dimensional (and 4-component) seismic interpretation and mapping
  • AVO and seismic attribute analysis and extraction
  • Velocity analysis and modeling for integrated depth conversion
  • Reservoir characterization
  • Geocellular reservoir modeling
  • Unconventional reservoirs (shale, coal, and tight sands)