PREPEAK Pre-failure rock Triaxial tester
Description
PREPEAK is a pump-actuated triaxial rock compression test system designed to apply deviatoric stresses to the core sample, facilitating anisotropic stress states. It features a built-in hydraulic piston that applies an axial load on the specimen, allowing distinct radial and axial confining pressures to be applied. Unlike equipment designed for rock-failure testing, PREPEAK is optimized for pre-failure loading where the rock remains intact. This stability is essential for advanced acoustic, petrophysical, and mechanical measurements, which rely on precise, well-controlled stress states rather than inducing failure. Each unit can be custom-configured to meet specific requirements, offering a wide range of pressure capacities, temperature limits, specimen sizes, and test modules to provide a fully tailored solution. When corrosive fluids are used, the stainless-steel wetted parts can be substituted with Hastelloy components.
For more information, please visit Floxlab's website: floxlab
Features
Manufacturer: Floxlab
Maximum pore pressure: 70 MPa
Maximum confining pressure: 70 MPa
Maximum axial pressure: 70 MPa
Maximum deviatoric stress: 70 MPa
Maximum temperature: -20 to 150°C
Sample diameter: up to 2 inches
Sample length: Twice the length
Wetted part material: Stainless steel / Hastelloy
Loading: Hydrostatic or triaxial
Pore inlet: 1
Pore outlet: 1
Port fittings: 1/8 inch
Benefits
* Measures rock deformation & storage: creep, compressibility, stress-dependent porosity
* Measures petrophysical & elastic properties: Stress-dependent permeability, Vp/Vs, resistivity
* Measures rock damage & fracturing: microcracking and fracture growth via acoustic emission