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+61 7 3216 6344 Contact Us
  1. Reserves Estimation

Reserves Estimation

Reserves EstimationYEWS2025-01-16T15:58:09+10:00

Sigra undertakes reserve estimation for coal mining according to the JORC code and coal seam gas (CBM) reserve estimates according to the SPE PRMS standard.

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  • Geological Services
  • Mine Design
    • Mining Systems
    • Outburst Control
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  • Reservoir Characterisation
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      • Gas Content From Core Desorption
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    • Laboratory
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  • Geomechanics
    • Rock Stress Measurement
    • Load & Movement Monitoring
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  • Drilling and Completion
    • Drilling Mud Rheology
    • Drilling Mud Design
    • Well Control Systems
    • Hydrofracture Design
  • Global Data Acqusition
  • Reserves Estimation
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Sigra is a privately owned company founded in 1994. It is based in Brisbane, Australia, and operates globally. Sigra is involved in all matters to do with the ground.

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    Sigra provides the experienced field personnel with the capability to conduct the standard exploration drilling supervision and analysis in conjunction with the geotechnical aspects essential to mine design and specific mining related problems.

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  • Geotechnical Engineering & Geomechanics
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    Rock
    • Rock Properties Testing
      • Uniaxial Testing
      • Shear Testing
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      • Triaxial Testing
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      • In-Situ Stress Testing By Overcoring – 2D
      • In-Situ Stress Testing By Overcoring – 3D
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      • Borehole Breakout
      • Surface Stress Measurement
      • Stress Change Monitoring
      • Tectonic Strain
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      • Carbonate Content – Matrix & Fracture
      • Coal Shrinkage with Desorption
      • Proximate & Moisture Analysis
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      • Economic Evaporite Minerals
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  • Ground Fluids
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      • Injection Fall Off Testing & Falling Head Testing
      • Interference Testing – Well Test with Piezometers
      • Pulsed DST Testing
      • Diagnostic Fracture Injection Testing – DFIT
      • Permeability Testing from Underground
      • Core Permeability
    • Pressure Measurement
      • Piezometers
    • Stress-Related Permeability
    Gassy Rocks – Coals and Shales
    • Gas Content Measurement
      • Gas Content From Core Desorption
      • Gas Content Without Coring
      • Gas Content From Cuttings
    • Gas Sorption Isotherms – Gas Storage
      • Isotherms by Regassing
      • Native Sorption Isotherms
    • Diffusional Behaviour
      • Diffusion from Cuttings
      • Apparent Diffusion Coefficient from Core
    • Stress & Permeability Changes – Stress Path
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  • Drilling Consulting
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    Sigra has a long involvement with drilling in many forms throughout its existence. This comes from having to work with whatever is available wherever that may be to the development of drilling systems. This range of involvement includes:

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