Pre failure rock Triaxial tester Instruments

Pre failure rock Triaxial tester Instruments 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, Pre failure rock Triaxial tester Instruments 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.

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

• 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