Review of an Immiscible CO2 Project, Tar Zone, Fault Block V, Wilmington Field, California

Summary The Long Beach Oil Development Co. (LBOD) tertiary immiscible CO2 project began in March 1982 with the injection of a mixture of about 85% CO2/15% N2 into the Tar zone of Fault Block V in the Wilmington field, Los Angeles County, CA. The 330-acre [134-ha] project had been waterflooded since 1961, and the water cut was more than 95%. Gas was injected alternately with water for a period of about 5 years. This paper reviews project performance from inception to the end of 1987.