Micro CT Rock Mechanics
CT Scanner Triaxial System for Rock Core AnalysisThe Micro-CT Mini Triaxial System performs triaxial testing simultaneously with Micro-CT scanning of a core sample inside the pressure vessel. X-ray transparent materials and optimized source-to-sample distances maximize CT image resolution during testing. Designed for the ThermoFisher HeliScan™ Micro CT, with flexible mounting for other models.
7,250 psiConfining Pressure
15,000 psiAxial Stress
2,000 psiPore Pressure
6mm ODSample Size
Triaxial testing with CT imaging
Real-time fracture visualization
Acoustic velocity (P, S1, S2)
Rock physics characterization
Resistivity monitoring
Multi-stage automated testing
Pore pressure & fluid flow
Crack initiation detection
System Features
- Sample size: 6mm OD × 12mm LG
- Hydrostatic confining pressure up to 7,250 psi [500 barg] at ambient temperature
- Axial stress up to 15,000 psi [103 MPa]
- Pore pressure up to 2,000 psi [138 barg] — 2 × 10cc pore pumps
- Acoustic velocity measurement (P, S1, S2)
- Resistivity measurement across the sample via LCR meter
- High-resolution digital pressure transducers — 0.02% FS accuracy
- Automated servo mechanical control — servo off any measured or calculated channel
- MR real-time GUI-based data acquisition software
- Flexible design: intended for ThermoFisher HeliScan™ Micro CT, adaptable to other models
- CE certification available
Data Acquisition System
- Data acquisition and process control
- PC and dual monitors
- Pulser/Receiver
- Switch Matrix
- Oscilloscope (Acoustics)
- LCR meter (Resistivity)
- Positive displacement pumps: Confining, Upstream, Downstream
- Pumps control power supply
| System | |
| Sample size | 6mm OD × 12mm LG |
| Confining pressure | 7,250 psi [500 barg] |
| Axial stress | Up to 15,000 psi [103 MPa] |
| Pore pressure | 2,000 psi [138 barg] |
| Temperature | Ambient |
| Fluids | |
| Confining fluid | IG-4, Paratherm, or Shell Heat Transfer Oil S2 |
| Injection fluid | Brine, mineral oil, water |
| Electrical & Instrumentation | |
| Power supply | 120VAC, 24A, 60 Hz, IP 40 |
| Acoustic velocity | P, S1, S2 measurement |
| Pressure accuracy | 0.02% FS (high-resolution digital transducers) |
Overview
- Context-sensitive, intuitive color windows to minimize learning time
- Enables complex, realistic testing programs at lower operating costs with minimal operator error
- User selects testing parameters — system automatically provides all execution information
Main Screen Modules
- System Overview
- Experiment Set Up
- Calibration
- Segment List — customized automation sequences
- Process Control
- Acoustic Velocity
- Monitor Data
- Graphics
- Help
Primary Applications
- Understanding rock behavior at the microscopic level under triaxial stress conditions and pore pressure
- Real-time Micro-CT imaging during triaxial deformation to visualize crack initiation and fracture propagation
- Ultrasonic velocity measurement (P, S1, S2) during triaxial loading for rock physics characterization
- Resistivity monitoring during testing to characterize fluid saturation and flow behavior
- Pore pressure control and fluid flow experiments — brine, mineral oil, and water injection
- Multi-stage automated triaxial test programs for Oil & Gas, Mining, and Geotechnical applications
Safety Requirements
- All personnel must read this procedure before starting operation
- Safety glasses and gloves must always be worn while working on the system
- Only operate the unit if the Process Engineering Flow Schemes are fully understood
- Relevant safety signs must be displayed in and around the operation area at all times
- All vessels/equipment are equipped with rupture disks as primary pressure protection
- Instrumental safeguards are described in the cause-and-effect diagram
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