Integrating CO2 EOR and CO2 Storage in the Bell Creek Oil Field
The Plains CO2 Reduction Partnership is working with Denbury Resources to evaluate theefficiency of large-scale injection of carbon dioxide (CO2) into the Bell Creek oil field forsimultaneous CO2 enhanced oil recovery (EOR) and long-term CO2 storage. Discovered in 1967,the Bell Creek Field in southeastern Montana has produced approximately 132 million barrels(MMbbl) of oil from the Cretaceous Muddy Sandstone Formation. The original oil in place(OOIP) for the field was estimated to be approximately 350 MMbbl of oil. Through primary andsecondary production, about 37.5% of the OOIP has been produced, leaving an estimated218 MMbbl of oil in the reservoir. It is estimated that CO2 flooding will produce an additional35 MMbbl of incremental oil, while simultaneously storing large volumes of CO2 in the deepsubsurface.Approximately 50 million cubic feet of CO2 a day will be captured at the ConocoPhillipsLost Cabin gas-processing plant in central Wyoming and transported via a 232-mile pipeline tothe Bell Creek Field. Plans are under way to build compression facilities adjacent to the LostCabin gas plant to compress the CO2 from 50 to 2200 psi, allowing for injection-ready pressuresat the project site. The CO2 will then be injected through multiple injection wells into the MuddyFormation at a depth of approximately 4500 feet.A baseline CO2 monitoring program is currently under development to establishpreinjection CO2 concentrations at the surface and in the shallow subsurface. Additionally,pressure and fluid saturations will be measured in the reservoir to establish preinjectionconditions, so that repeat measurements can be used to better quantify the amount and location ofthe injected CO2.The Bell Creek integrated CO2 EOR and storage project provides a unique opportunity todevelop a set of cost-effective monitoring techniques for large-scale (>1View/Download Document
Event/Meeting Information
Carbon Management Technology Conference
2/7/2012
Orlando, FL