Effects of petroleum-reservoir conditions on oil recovery by carbon dioxide injection

Technical Report · Mon Nov 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/6276441· OSTI ID:6276441

Comberiati, J R; Zammerilli, A M

Several petroleum reservoir conditions were evaluated to determine their effects on oil recovery by CO/sub 2/ injection. The conditions studied were reservoir temperature, reservoir pressure, and CO/sub 2/ slug injection size. With constant pressure, the reservoir temperature was varied from 75/sup 0/ to 130/sup 0/F, and optimum oil recovery was obtained at a temperature near the critical temperature of CO/sub 2/ (87.8/sup 0/F). When the temperature was held constant and the reservoir pressure varied from 650 to 1800 psi, it was found that miscibility pressure may be above but close to 1800 psi. The CO/sub 2/ slug injection size has been varied from 3% to over 40% PV to determine if oil recovery would increase with increase of CO/sub 2/ slug size. Graphic representation of the results show that a maximum slope is reached between 12 and 15% PV. Above 15% the slope becomes smaller. It is concluded that optimum oil recovery lies between 12 and 15% PV, and the additional oil recovered, above a 15% PV CO/sub 2/ slug, would not warrant the increased cost of the CO/sub 2/. 13 figures, 13 tables.

• Research Organization: Department of Energy, Morgantown, WV (USA). Morgantown Energy Technology Center
• OSTI ID: 6276441
• Report Number(s): DOE/METC/TPR-83-4; ON: DE83008455
• Resource Relation: Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CARBON DIOXIDE INJECTION
PRESSURE DEPENDENCE
TEMPERATURE EFFECTS
OIL WELLS
DRILL CORES
ENHANCED RECOVERY
EXPERIMENTAL DATA
HIGH PRESSURE
MEDIUM PRESSURE
MEDIUM TEMPERATURE
PETROLEUM
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
WELL STIMULATION
DATA
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
INFORMATION
MISCIBLE-PHASE DISPLACEMENT
NUMERICAL DATA
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production