We determine the input parameters for our modelling in our highly sophisticated lab.
Hand in hand with in-situ stress modeling, geomechanical characterization of rock material lays the basis for any geomechanical analysis. Already a few experiments can help to better predict rock mass and reservoir behavior.
geomecon’s lab is build around a high capacity loading frame with confining pressure and pore pressure system, advanced strain and micro-seismicity monitoring systems. The laboratory service portfolio comprises basic strength tests at various boundary conditions, advanced fracture mechanics testing and petrophysical characterization.
- determination of petrophysical parameters like density, porosity, and permeability
- determination of static and dynamic elastic properties like Poisson ratio and Young's modulus
- fracture toughness (Mode I, Mode II) determination
- determination of cohesion and friction angle
- tensile strength
- onset of sanding
basic characterization package
Additionally, geomecon offers a basic characterization package, that requires about one meter of core material and delivers the most important parameters for 1D geomechanical modeling. Alternatively we can perform the analyses on blocks of analogue material also.
- delivers all basic geomechanical parameters
- testing according to ISRM standards
- package includes handling, specimen preparation, analysis, interpretation and reporting of results
petrophysical results
- density
- porosity
- vp velocity
- degree of anisotropy
rock mechanical results
- unconfined compressive strength
- Mohr-Coulomb parameters
- tensile strength
- Mode I fracture toughness
- static and dynamic Young’s modulus
- static and dynamic Poisson’s ratio
testing plan
- Brazilian Disk test (5x)
- unconfined compression experiments with strain reading (3x)
- multiple stage triaxial compression experiments at three confining pressure w/wo pore pressure stages (5x)
- Helium pycnometry (5x)
- ultrasonic velocity measurements (10x)
selected references
Queens University (Canada), Geos4 (Germany), St Galler Stadtwerke (Switzerland), Geothermie Neubrandenburg (Germany), Helmholtz Center Potsdam (Germany), Aalto University (Finland).