5 Meckel_CO2_EOR_Houston_12052011 public

CCUS: CO2-EOR R2B: 

CCUS: CO 2 -EOR R2B Tip Meckel Gulf Coast Carbon Center Bureau of Economic Geology Jackson School of Geoscience The University of Texas at Austin

CO2 use for Enhanced Oil Recovery is Sequestration: 

CO 2 use for Enhanced Oil Recovery is Sequestration Capture unit CO 2 emissions CO 2 Oil Brine CO 2 Oil to market Recycle is effective in stripping CO 2 from produced fluids All the CO 2 captured remains isolated from the atmosphere. recycle Separation plant

Role of EOR in Sequestration: 

Role of EOR in Sequestration Volume of CO 2 Time EOR Brine sequestration EOR Significant volumes: only a fraction of all point source CO 2 can be sold for EOR Offset some of cost of capture Pipeline development, site characterization Public acceptance

Miscible CO2 EOR Resource Potential in the Gulf Coast : 

Miscible CO 2 EOR Resource Potential in the Gulf Coast Mark Holtz 2005

CO2 Sequestration Capacity in Miscible Oil Reservoirs along the Gulf Coast: 

CO 2 Sequestration Capacity in Miscible Oil Reservoirs along the Gulf Coast Bureau of Economic Geology Mark Holtz 2005

How does EOR compare to brine sequestration?: 

How does EOR compare to brine sequestration? EOR Recycle with production Confined area Trap Pressure control Residual oil- CO 2 very soluble Many well penetrations = Good subsurface knowledge Some leakage risk Brine Reservoir Storage only Large area May not use a trap Pressure area increase Brine – CO 2 weakly soluble Few well penetrations = Limited subsurface knowledge Lower leakage risk

Monitoring Goals For Commercial Sequestration: 

Monitoring Goals For Commercial Sequestration Show that: Storage capacity and injectivity are sufficient for the volume via history match between observed and modeled CO 2 will be contained in the target formation not damage drinking water or be released to the atmosphere Know aerial extent of the plume elevated pressure effects compatible with other uses minimal risk to resources, humans, & ecosystem Advance warning of hazard to allow mitigation if needed Public confidence in safe operation Modified from J. Litynski, NETL

Two areas need monitoring: CO2 and pressure : 

Two areas need monitoring: CO 2 and pressure CO 2 plume Elevated pressure CO 2 injection (no production) pressure plume extends beyond the CO2 injection area In EOR CO 2 injection is approximately ballanced by oil, CO2, and brine production no pressure plume beyond the CO2 injection area

SECARB Phase III – “Early” test Cranfield unit operated by Denbury Resources International : 

SECARB Phase III – “Early” test Cranfield unit operated by Denbury Resources International Natchez Mississippi Mississippi River 3,000 m Gas cap, oil ring, downdip water leg Shut in since 1965 Strong water drive returned to near initial pressure

PowerPoint Presentation: 

10-3/4" casing set @ 1,825' 16" casing set @ 222' 13-Chrome Isolation packer w/ feed through 13-Chrome Selective seat nipple Side Pocket Mandrel w/dummy gas valve Pressure transducer 1/4" tubing installed between packers to Provide a conduit between isolation packers 13-Chrome Production packer w/ feed thrus Tuscaloosa perforation 7" casing set @ 10,305' Monitoring Zone CO 2 Injection Zone Side Pocket Mandrel w/dummy gas valve Pressure transducer Test adequacy of Mississippi well completions for CO 2 sequestration Confining system

SECARB Phase 3 Project: Cranfield, MS: 

SECARB Phase 3 Project: Cranfield, MS Above-zone monitoring DTS System ERT U-Tube System CASSM Press/Temp Distributed Temperature System P/T Injector CFU 31F1 Obs CFU 31 F2 Obs CFU 31 F3 F1 F2 F3 Injection Zone Above Zone Monitoring 10,500 feet BSL

Likely Key MVA Activities In Gulf Coast EOR Field: 

Likely Key MVA Activities In Gulf Coast EOR Field Well performance – long term stability Fault seal performance CO 2 Sweep – plume-edge tracking Surface facilities carbon balance

Role of EOR in Guiding Monitoring Costs: 

Role of EOR in Guiding Monitoring Costs EOR Balanced CO 2 Monitoring costs Natural CO 2 Anthropogenic CO 2 Sequestration EOR +/- Sequestration CCS Seq. Monitoring costs too high: More CO 2 to EOR + CCS More CO 2 to CCS EOR + CCS CCS EOR + CCS Costs of sequestration monitoring in EOR setting vs. Costs monitoring in sequestration setting Credit w/ monitoring WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW UNLIKELY SITUATION Unless credit – mon. costs > $ oil $ Credit w/ monitoring