Annex 2: Reservoir characterization and enhanced oil recovery research

Technical Report · Sun Jan 01 04:00:00 EST 1989

OSTI ID:5166027

Pope, G A; Lake, L W; Schecter, R S

The objective of this project is to increase our understanding of EOR processes as they relate to realistic settings for increased efficiencies and decreased risks in known reservoirs in the State of Texas. The primary activities of the Project will include (1) systematic reservoir characterizations, (2) modeling and scaleup of chemical flooding techniques, (3) gaining a broader understanding and providing fundamental information on CO{sub 2}-surfactant phase behavior. This quarter's tasks include: (a) Use of geochemical flow to determine the geometric patterns in porosity and permeability that result from diagenetic processes; and, to define the patterns of permeability in carbonate formations and the occurrence of calcite cement inclusions caused by both bacterial action and thermochemical processes; (b) Fine-mesh simulations of first-contact miscible displacements have been performed using UTCHEM. The results match the production history of a laboratory-scale core flood. An empirical viscous fingering model has also been implemented and tested. The model can successfully match the recovery curve of a first-contact miscible linear unstable displacement. Better results can be obtained by adjusting the viscosity mixing parameter; and (c) A study of CO{sub 2}-surfactant-water interactions as a means of developing a thermodynamic model to predict conditions of precipitation and the chemical potential of surfactants in aqueous solutions. 16 refs., 5 figs., 2 tabs.

• Research Organization: Texas Univ., Austin, TX (USA). Dept. of Petroleum Engineering
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FG22-89BC14251
• OSTI ID: 5166027
• Report Number(s): DOE/BC/14251-3; ON: DE90005591
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AROMATICS
CHEMISTRY
DIAGENESIS
DIFFUSION
DOCUMENT TYPES
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FEDERAL REGION VI
FLUID INJECTION
FOSSIL FUELS
FUELS
GEOCHEMISTRY
HYDROXY COMPOUNDS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
NORTH AMERICA
ORGANIC COMPOUNDS
PERMEABILITY
PETROLEUM
PHENOL
PHENOLS
POROSITY
PROGRESS REPORT
RECOVERY
RESERVOIR ENGINEERING
SIMULATION
TEXAS
USA