• Workflow
  • Feasibility study
  • Survey design
  • Acquisition
  • Processing & imaging
  • Interpretation
• Survey types

Feasibility study

Each EMGS project starts with a feasibility study that provides a thorough evaluation of whether the target will be detectable.

A plane-layer (1D) modelling algorithm is normally used during the initial phase. Plane-layer modelling is fast and provides sensitivity analysis of subsurface parameters, including anisotropy. The exercise gives an indication of the expected responses and the frequency content that will be required to resolve the given targets. A go or no-go decision is made on the basis of this modelling.

The simple, quick-look forward modelling is followed by more sophisticated 3D simulations. State-of-the-art commercial model-building software is used to develop realistic and detailed 3D resistivity models.

EMGS then uses its in-house-developed 1D and 3D modelling capabilities to simulate seabed-logging surveys and fully assess the survey's feasibility and determine its acquisition parameters.

We can model full-scale seabed-logging surveys in a few hours. Any sourceÐreceiver geometry can be simulated, and the horizontal and vertical electric and magnetic field components can be computed.

Each feasibility study is custom designed and depends on the geological information available and the survey objectives.

Feasibility reports can be commissioned as standalone products or as part of a comprehensive EMGS seabed-logging survey.

Deliverables:

• feasibility report