Utilizing a network of 3C broadband geophones, Magnitude seismicity monitoring helps operators manage the integrity of underground storage facilities, such as salt caverns, natural gas storage reservoirs, and carbon-dioxide sequestration projects. It can also be used to monitor large induced or triggered events created by injection wells or hydraulic fracturing that could potentially cause surface damage.
Magnitude’s seismicity monitoring is an early warning “traffic light” system where relatively large induced events in unexpected locations are used to indicate a potential risk regarding underground integrity and/or potential surface damage. In addition to large event detection, our networks are designed to be sensitive enough to detect small induced events considered as minor, i.e., not harmful, suggesting that the ongoing process and operation are not inducing significant failures within the rock mass. By tracking the minor events and analyzing their behavior through space and time, Magnitude’s field-tested system can be used to trigger an “integrity watch” according to pre-validated criteria.
Small events as a byproduct of an injection process (reservoir characterization and imaging domain)
Induced microseismic events are considered as an inherent part of an underground injection process. The events are small (typically with negative magnitudes) and require very sensitive monitoring equipment to be detected. These events are used to guide the process, and the microseismic survey is considered as a means to understand geomechanical behavior that could trigger larger-scale events.
Large events as an unintended result at the surface (reservoir watch and warning domain)
Triggered microseismic or seismic events reaching some existing geological features can arise in any process involving the injection of pressurized liquids underground. These can correspond to more significant magnitudes, potentially felt by humans and causing damage at the surface level. These unintended events are connected to circumstances that can be identified through modeling, operational procedures, and permanent monitoring.
Leveraging a comprehensive technology portfolio
With Baker Hughes' industry-recognized formation evaluation, microseismic acquisition, and pressure pumping technology and services, Magnitude offers unsurpassed microseismic solutions.
To learn more about how Magnitude’s Induced Seismicity Monitoring (I_MEQ) services can help you identify and prevent positive magnitude events, please contact your local service representative.