The TRUTEST-C is an advanced true triaxial system for mechanical characterization of large cubic rock specimens under realistic reservoir conditions. It independently controls the three principal stresses σx, σy and σz, reproducing complex 3D in-situ stress states. Four servo-controlled hydraulic actuators apply stresses along the X and Y axes, while confining pressure generates stress along the Z axis. The system accommodates 100 × 100 × 100 mm specimens and operates at stresses and pore pressures up to 70 MPa. High-resolution LVDTs measure deformation in the three principal directions, while three precision syringe pumps provide independent stress control. Optional heating enables testing up to 150°C. Optional P and S-wave measurements characterize elastic properties, anisotropy and rock damage, while Acoustic Emission monitoring detects and localizes fracture development. The system also supports hydraulic fracturing and wellbore stability studies, providing a complete platform for advanced geomechanical research.
Download: TRUTEST-C_Brochure.pdf
Specifications
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Specimen dimensions | 100 x 100 x100 mm |
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Maximum X stress | 70 MPa
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Maximum Y stress | 70 MPa |
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Maximum Z stress | 70 Mpa |
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Pore pressure | 70 Mpa |
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Temperature | Ambient to 150°C (optional) |
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Wetted part material
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Stainless steel
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Power supply
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220 V 2 Phases, 50/60 Hz
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Benefits
True Triaxial Loading – Independent σx, σy and σz control.
High Pressure Capability – Stresses and pore pressure up to 70 MPa.
Reservoir Temperature Simulation – Testing up to 150°C.
High-Precision Deformation – Accurate 3D strain measurement with LVDTs.
Advanced Acoustic Monitoring – P/S waves and Acoustic Emission for damage detection.
Hydraulic Fracturing Testing – Fracture initiation, propagation and wellbore stability studies.