Case Study
RCX Sentinel dropped sample contamination in heavy oil from 25% to less than 2%
RCX Sentinel dropped sample contamination in heavy oil from 25% to less than 2% Challenges • Reservoir appraisal needed in a heavy oil zone using a deviated deepwater borehole • Operator required clean samples but wanted to minimize sampling time • Multiple sampling targets were necessary • Innovative deployment technology was needed to overcome difficult well design Results • Successfully tested 101 depth stations, covering 13 deployments in six wells, in 52 hours • Achieved 97% pad seal efficiency • Dropped sample contamination levels down to less than 2%, from 25%, in a 16 API heavy oil zone A deepwater well operator in the Gulf of Mexico (GoM) needed fluid samples for the appraisal and development of several oil-bearing reservoirs, i