Coal Seam Gas

CSG Consulting Services

Prospect Evaluation and Due Diligence

Prospect evaluation and due diligence is an integrated study aimed at determining or reviewing a region’s CSG prospectivity. It informs decision making on the viability of a given CSG project and includes:

  • Review of regional and local scale geological, surface, and subsurface maps to understand the extent of coal seams and their structure.
  • Evaluation of regional geological and geophysical data (gravity, magnetic and seismic data).
  • Evaluation of coal reservoirs, petrophysics, core analysis, well testing (DST and Production tests).
  • Gas production modelling including uncertainty analysis.
  • Compilation into a valuation model.

Well Scheduling and Gas Production Modelling

  • Covering both coal seam gas and coal mine gas utilisation
  • Provision of below ground inputs to the design of surface infra structure
  • Well operation parameters
  • Field well layout and sequencing
  • Gas production forecasting using SIMEDwin

Resource Certification

  • Compliance with SPE PRMS guidelines, which are globally recognised by the Oil and Gas industry.
  • Reporting of P1, P2, P3 reserve categories.

GeoGAS has developed a standardised approach for preparing CSG resource/reserve reports that provides check-points to the evaluator ensuring regulatory and audit compliance by stock exchanges globally.


CSG Field Services

GeoGAS can plan, build and project manage CSG exploration programs, both in Australia and abroad.

Project Planning and Training:

  • Planning and management of exploration program
  • Development and implementation of working procedures, safe operational procedures and job safety analysis for drilling and geological crews
  • Operations reporting of exploration results and borehole completion reports
  • Training, monitoring and evaluation programs for geologists and site personnel.

Field Gas testing and Rig Supervision:

  • Provision of field gas desorption facilities, featuring testing at reservoir temperature
  • Gas desorption sampling
  • Lithological, structural and geo-technical core logging, core photography and core sampling
  • Coal logging and sampling
  • Geological and geotechnical core logging and the onsite interpretation of down hole geophysical logs
  • Rig management, supervision and safety
  • Management of safety meetings concerning Job safety analysis and safe working procedures and implementing the changes.

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