Post-pilot re-evaluation of solvent requirements for a horizontal hydrocarbon miscible flood in an Upper Devonian reef in Central Alberta

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6974395

Asgarpour, S; Singhal, A K; Card, C C; Wong, T W; Springer, S

Based upon dispersion-diffusion calculations at the leading and trailing edges of the solvent slug in a patterned hydrocarbon miscible flood in the Upper Devonian reef (D-2) at Fenn-Big Valley, in Central Alberta, the required slug size was computed. This slug size incorporated considerations for microscopic heterogeneities, and a factor of safety so that sufficient slug remained to ensure miscibility. This slug size formed the design basis for a pilot experiment in a part of the pool. After three years of the pilot operation, sufficient performance and tracer results became available to enable a re-evaluation of the above design basis. The motivation behind this re-evaluation was the desire to extend the recovery process to a much larger part of the pool. It was seen that whereas the considerations of local heterogeneities and transport indicated a moderate slug size (6% H.C.P.V.), the considerations of regional and interwell heterogeneities, flooding patterns, geometry of flood propagation etc., indicated about twice this amount as the required slug size. Based upon these considerations, it was concluded that the realistic design basis for a field scale project must take full cognizance of regional and interwell heterogeneities. This paper deals with the supporting data and procedures used in developing the revised design basis for the project.

• Research Organization: Gulf Canada Corp.
• OSTI ID: 6974395
• Report Number(s): CONF-861080-
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALBERTA
CANADA
COMPUTER CALCULATIONS
DATA ANALYSIS
DEVONIAN PERIOD
DIFFUSION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
EXPLOITATION
FLUID INJECTION
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FUELS
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC STRUCTURES
HETEROGENEOUS EFFECTS
HYDRODYNAMICS
MECHANICS
MINERAL RESOURCES
MISCIBLE-PHASE DISPLACEMENT
NORTH AMERICA
OIL FIELDS
OIL WELLS
PALEOZOIC ERA
PERFORMANCE
PETROLEUM
PETROLEUM DEPOSITS
RECOVERY
REEFS
RESERVOIR ENGINEERING
RESERVOIR ROCK
RESOURCES
SOLVENTS
STIMULATION
WELL STIMULATION
WELLS