Optimization Study of Seismic Monitoring Network at the CO2 Injection Site – Lessons Learnt from Monitoring Experiment at the Cranfield Site, Mississippi, U.S.A.☆

Abstract In this paper, we discuss the design (seismometers’ types and layout) of seismic monitoring network that monitors microseismic events induced by CO 2 injection and natural earthquakes that occurs around the CO 2 injection site. We also elucidate CO 2 injection and occurrences of microseismic events. Firstly, we tested a monitoring network at the Large-scale CO 2 injection site in the U.S.A to obtain lessons learnt. Then, we review case studies of microseismic monitoring at the two CO 2 injection sites. Finally, we discuss and propose the monitoring network that meets our requirements based on findings from the monitoring experiment and case studies.