Rock mechanics laboratory

NGI has an advanced rock mechanics laboratory with equipment for geomechanical and geophysical testing of rock samples at high stress and temperature.

High-quality rock mechanics and geophysical datasets are essential for various applications within the petroleum industry, geothermal energy production, and storing CO2 and radioactive waste. Examples are:

  • well stability
  • sand production
  • hydraulic fracturing
  • reservoir flow
  • compaction and surface subsidence
  • the integrity of faults and roof rock
  • rock physics and geophysical studies
  • instrumentation and monitoring

NGI offers

  • test facilities for standardized and specialized tests (e.g., R&D purposes)
  • workshop for the design and production of own laboratory equipment, including instrumentation
  • expertise and software for the design and analysis of laboratory experiments

The following tests are offered:

  • classification and index testing
  • simple strength tests
    - uniaxial compressive strength/ compressive strength ("UCS test")
    - indirect tensile strength/ tensile strength ("Brazil test")
    - point load test
  • triaxial testing (standard)
    - shear test with isotropic or anisotropic consolidation (drained/undrained)
    - compaction test (1D/K0) and oedometer testing
    - the possibility of a flexible stress path and cycling of total stress and pore pressure
    - measurement of thermal expansion coefficient
    - permeability testing
    - HPHT- High-pressure and high-temperature testing
  • geophysical/rock physics tests
    - measurements of ultrasonic P and S wave velocities and electrical resistivity can be made in all triaxial cells
  • acoustic emission (AE) testing
    - AE testing in our own specially adapted triaxial setup
  • CO2 flow tests
    - multiphase flow at different temperature and pressure conditions (including supercritical CO2) in combination with geophysical measurements
  • triaxial test in CT scanner
    - visualization of deformation and fluid flow, including geophysical measurements
  • direct shear test (shear box test)
    - friction and deformation characteristics of cracks
    - fluid flow and conductivity on the fracture plane
    - "Velocity stepping test," varying shear speed for assessing the seismic potential of cracks and faults
  • advanced characterization
    - CT scanner for 2D and 3D visualization (structures, fracture pattern, etc.)
    - microscope (optical and SEM) for microtexture
    - photogrammetry for characterizing the crack surface
Portrait of Magnus Soldal

Magnus Soldal

Head of Section Rock Mechanical and Geophysical Testing
+47 411 29 454