Mini Frac Test Services
Mini-frac testing is essential for understanding in-situ stress conditions, particularly important in deep-buried tunnel design to mitigate risks such as rock bursting and large deformations during excavation. Leveraging expertise from the oil and gas sectors, we’ve expanded our mini-frac (openhole) services to the field of tunnel engineering.
Importance of In-Situ Stress Measurement
Role in Tunnel Engineering
Crucial for assessing potential hazards associated with tunnel excavation.
Methodology
The mini-frac test is recognized as the most reliable method for measuring in-situ stress conditions.
Testing Equipment
Manifold System:
Lightweight Pump:
Reusable Downhole Straddle Packer:
Real-Time Analysis and Decision Software
This software aids in analyzing data from the tests in real time, providing insights for decision-making during the frac process.
Deliverables from a Mini Frac Test (Openhole)
Three Principal Stress Components:
Direction of Principal Stress:
Formation Fluid Properties:
