Rock Mechanics System
Fully Automated Triaxial Testing SystemA servo-controlled stiff frame system engineered for precision rock characterization under extreme conditions minimizing stored energy for accurate modulus and strain measurement.
400,000 lbsAxial Load Capacity
30,000 psiConfining Pressure
450°CMax Temperature
Up to 4"Sample Diameter
Unconfined Compression
Triaxial
Bending
Indirect Tensile
Fracture
Post-Failure Behavior
Creep
Custom Stress Paths
Servo Mechanical Load Frame
- Stiff frame design minimizes stored energy for accurate modulus and strain measurements
- Servo-controlled actuation with position, load, strain and stress feedback modes
- Isothermal temperature control enclosure for high-temperature testing
- Capable of testing at elevated temperatures up to 450°C under full stress conditions
Pressure and Fluid System
- High-pressure confining vessel with large fluid capacity
- Dual pore pressure generators for upstream and downstream control
- Booster pump cart for CO₂ and supercritical fluid injection applications
- Multi-variable control confining pump for precise pressure regulation
- Supports steady-state permeability measurements in vertical and horizontal orientations
In-Vessel Instrumentation
- Accommodates a range of core sample diameters and lengths
- Electrical feed-through connectors for axial and circumferential deformation, load and acoustic measurements
- Ultrasonic transducers for compressional (P-wave), two orthogonal shear (S1, S2) and 45° wave measurements
- Internal load cell for accurate in-vessel force measurement
- 4-Wire resistivity measurement capability
Permeability
- Hydrostatic confining pressure measurement
- Vertical and horizontal steady-state pore pressure and flow rate measurement
| Load Frame | |
| Maximum axial load | 400,000 lbs |
| Maximum temperature at stress | 450°C |
| Confining System | |
| Confining pressure | 30,000 psi |
| Vessel capacity | 1 Liter |
| Confining pump resolution | 1 × 10-2 inch |
| Pore Pressure System | |
| Generator capacity | 30 CC, 30,000 psi |
| Pump resolution | 1 × 10-9 inch |
| Sample Dimensions | |
| Maximum diameter | Up to 4″ |
| Maximum length | Up to 4″ |
| Acoustic Transducers | |
| Frequency | 1 MHz piezoelectric |
| Wave types | P, S1, S2 and 45° |
Control System Hardware
- Rackmount control system housing
- Digital displays
- Custom-built PC
- Measurement instrumentation
- Acoustic electronics and oscilloscope
Software Architecture
- Open software architecture to servo any measured or calculated variable
- Supports any stress path loading: Triaxial, Uniaxial, IsoStatic
- Real-time data acquisition
- Process control software
- Graphical user interface analysis tools
Testing Capabilities
- Unconfined Compression
- Triaxial testing
- Bending
- Indirect Tensile
- Fracture
- Post-Failure Behavior
- Creep
- Nearly any other compaction test under various stress paths
Measurement Capabilities
- Ultrasonic velocity measurement (P and S waves)
- Acoustic emission monitoring
- 4-Wire resistivity measurement
- Steady-state permeability (vertical and horizontal)
- Pore pressure and flow rate measurement
Research Applications
- Rock mechanics and geomechanics research
- Formation evaluation and reservoir characterization
- CO₂ injection and storage studies
- HPHT testing up to 450°C
Safety Features
- Integrated safety shutdown mechanisms
- Maximum pressure safety protocols for 30,000 psi systems
- Emergency stop systems
- Automated safety limits on pressure and temperature
- Position, Load, Strain and Stress Feedback Control for safe operation
- Isothermal Temperature Control Enclosure for thermal safety
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