Pinpointing and Quantifying Methane Leaks with the Bar Hole Sampler
Introduction
In 2025, a significant methane leak was detected in a geothermal well field, posing safety risks due to the flammable nature of the gas and potential hazards to nearby areas. While methane leaks are more commonly associated with oil and gas wells, geothermal wells can also release methane through underground pathways.
Accurate detection and quantification were critical for immediate safety and long-term mitigation, as the precise source and extent of methane migration were initially unclear.
Challenge
- Immediate Safety Risk: Methane accumulation threatened personnel and nearby infrastructure.
- Uncertainty: The source and concentration of methane within the geothermal system were unknown.
- Need for Accurate Data: Effective mitigation required precise detection and quantification to prioritize interventions and guide remediation strategies.