Design of a pilot polymer flood in the Marmul Field, Oman

Conference · Tue Mar 01 04:00:00 EST 1983 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5494279

Teeuw, D; Martin, J H; Rond, D

The Marmul heavy-oil field is located in South Oman in the province of Dhofar. The main sandstone reservoir consists of glacial deposits of PermoCarboniferous age and contains about 2.5 billion barrels STOIIP of 21/sup 0/ API crude. The field is in the stage of primary development with a current production of 45000 BPD. Oil production by depletion is expected to be low, while a water drive will be adversely affected by the high oil viscosity and high permeability. Thus the Marmul field offers ample scope for EOR techniques. This paper deals with the design of the relevant polymer flood and pilot tests. A suitable mobility ratio is determined from calculated drive efficiencies and related polymer requirements, allowing for polymer retention and for viscosity grading of the polymer flood. Results of laboratory experiments indicate that polyacrylamide emulsion polymers provide attractive properties for application in Marmul. Retention in the highly permeable sands is low and so is the plugging tendency. However, viscoelastic effects cause very high pressure gradients at high flow rates, which may adversely affect polymer injectivity. This can be resolved by subjecting the solution to controlled shear treatment prior to injection.

• Research Organization: Koninklijke/Shell Exploration and Production Laboratory
• OSTI ID: 5494279
• Report Number(s): CONF-830397-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE 11504
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ASIA
BENCH-SCALE EXPERIMENTS
CARBONACEOUS MATERIALS
DEVELOPING COUNTRIES
DISPLACEMENT GAGES
ENHANCED RECOVERY
FLUID INJECTION
GEOLOGIC DEPOSITS
MATERIALS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MIDDLE EAST
MINERAL RESOURCES
OIL FIELDS
OIL WELLS
OMAN
PERFORMANCE
PERMEABILITY
PETROLEUM DEPOSITS
PLUGGING AGENTS
POLYMERS
RECOVERY
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
VISCOSITY
WATERFLOODING
WELLS