Oil & Gas

3D Basement and Interface Topography
TerraNotes had researched and developed new technologies for mapping the basement topography using gravity (gGase) and/or magnetic (gGase) data.

Main Benefits of these technologies:
  1. Provide a powerful additional constraint to validate the tectonic, structural and stratigraphical models initially derived from well data and seismic control.
  2. Extrapolate structural trends beyond the seismic data coverage.
  3. Resolving structure under low-density section e.g., salt
  4. Resolving structure at the sedimentary/igneous interface
  5. Increase the value of proposed seismic studies

Regional analysis to identify areas of interest

  1. Lithology of crystalline basement and structures
  2. Structural relief of crystalline basement (3D shape including elevation)
  3. Fault location and distribution (type, strike, length, dip and depth)
  4. Identify and characterize salt domes (location, size, height, 3D shape)
  5. Delineate igneous rocks (area, overall depth/thickness, lithology interpreted)

Petroleum geology of sedimentary basin

  • To delineate:
  1. Petroleum generative depression
  2. Block sag
  3.  Hollow zone
  4.  Mobile geosynclinal trough
  5. Topographic depression
  • To map sedimentary depression and local structures related:
  1. Burial hill and anticlines of above formations
  2.  Local structures in Paleogene formations
  3. Fault traps
  4. Formation overlapping and pinchout on uplift flank
  5. Flexure caused by deep faulting

Precise structural models using 3D gravity and magnetic tensor analysis


Integrated Approach to Exploration

Satellite Gravity -- Airborne Gravity, Magnetic, Electromagnetic, CSAMT, CSEM integrated with Seismic Interpretation and Attributes Analysis

Shallow Gas -- Onshore & Offshore Basement Definition -- Insitu Oilsands E&P