Rock Mechanics Testing
Compressional Testing — Single Stage / Multistage Triaxial
Compressional testing of samples drilled at a chosen orientation — perpendicular, parallel, or inclined with respect to bedding — giving compressive strength, residual strength and mechanical properties from measured stress-strain data.
What the results support
- Rock characterisation and failure envelope construction
- Elastic anisotropy characterisation
- In-situ stress modelling
- Wellbore stability analysis
- Hydraulic fracture design
- Static and dynamic properties, measured together
Sample dimensions: 1″ × 2″ or 1.5″ × 3″. Load press capacity 50,000 lbs, confining pressure rating 15,000 psi. Full core testing available on request.
- Acoustic velocity is measured throughout the duration of the test, so dynamic mechanical properties come alongside the static measurements rather than from a separate run.
- Combining the two gives insight into in-situ stress estimates that neither provides alone.
- Tests can be performed under total or effective stress conditions.
- Confining pressure cycling before triaxial loading allows estimation of bulk modulus under isostatic loading, while load and unload cycles during triaxial loading give mechanical properties at simulated reservoir conditions.
- High temperature testing is available in addition to ambient, and compressional testing can be paired with simultaneous porosity or permeability measurement for an integrated programme.
