Bell Creek Test Site - 2 Years of Near-Surface Assurance Monitoring Completed
The purpose of the near-subsurface-monitoring program at the Bell Creek oil field is to establish baseline conditions and variability of surface water, soil, and shallow groundwater aquifer chemistries in the vicinity of geologic CO2 injection that can be used in conjunction with continued assurance monitoring to 1) provide a scientifically defensible source of data to show that near-surface environments remain unaffected by fluid or gas migration and 2) identify and evaluate anomalies that could be indicative of an out-of-zone migration event should it occur during assurance monitoring. The baseline near-subsurface water- and soil gas-monitoring program, which comprised six full-field quarterly events and several targeted monthly events, was carried out by the PCOR Partnership between November 2011 and April 2013. This milestone marks the completion of 2 years of continued near-surface assurance monitoring following the start of CO2 injection in May 2013 through April 2015.View/Download Document