Commercial scale demonstration enhanced oil recovery by micellar-polymer flood. Sixth annual report, October 1982-September 1983

Technical Report · Mon Apr 01 04:00:00 EST 1985

OSTI ID:5796086

Mueller, L M

This report is organized under two Work Breakdown Structures (WBS) which are summarized below. WBS No. 2100 - Fluid Injection: (1) Polymer injection has continued in varying concentrations. During the interim of October 1, 1982 and September 30, 1983, the polymer concentration was reduced from 411 ppM to 200 ppM and then to 100 ppM on the 2.5-acre pattern. The 5.0-acre pattern has remained at the same 625 ppM polymer concentration. (2) A change from bulk Dow 700 to bag Dow 700 polymer was made during 1983. The previously purchased bag polymer has been stored since the start of the M-1 Project. WBS No. 2300 - Performance Monitoring: (1) Subsequent to injection of tritiated water into ten injection wells, produced fluids from all oil wells have been analyzed monthly for the presence of tritiated water. During August, 1983, 29 wells showed the presence of tritiated water as compared to 77 wells in August, 1982. (2) Samples of produced water have been collected monthly and analyzed for water soluable sulfonate content (a micellar slug component). Analysis of sulfonate production shows 88% and 36% of the 2.5- and 5.0-acre patterns' wells respectively have fallen off peak sulfonate response. (3) Presently, the 2.5- and 5.0-acre patterns are producing at oil cuts of 3.2% and 8.7%, respectively. (4) The annual transient test results for the six injectors and their six offset producers are reported. The results are compared to previous years' results and indicate an increase in skin damage in the 2.5-acre pattern injectors and a generally increasing fluid mobility in the 2.5- and 5.0-acre patterns. (5) Core analysis data are presented for three core test wells which were drilled in the 2.5-acre pattern to compare slug and polymer swept sand intervals to the induction log calculated swept intervals in the offset observations wells. 24 figs.

• Research Organization: Marathon Oil Co., Findlay, OH (USA)
• DOE Contract Number: AC03-78ET13077
• OSTI ID: 5796086
• Report Number(s): DOE/ET/13077-104; ON: DE85000123
• Country of Publication: United States
• Language: English

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02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
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DATA
DEMONSTRATION PROGRAMS
DRILL CORES
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FEDERAL REGION V
FIELD TESTS
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
ILLINOIS
INFORMATION
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
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OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PERMEABILITY
PETROLEUM
POLYMERS
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SATURATION
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TESTING
TIME DEPENDENCE
TRACER TECHNIQUES
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