The effect of crossflow on waterflooding of stratified reservoirs
Journal Article
·
· SPEJ, Soc. Pet. Eng. J.; (United States)
A mathematical model is developed for waterflooding performance in linear stratified systems for both cases of noncommunicating layers with no crossflow and communicating layers with complete crossflow. The model accounts for variation of porosity and saturation in addition to permeability of the different layers. The model predicts the fractional oil recovery, the water cut, the total volume injected, and the change in the total pressure drop, or the change in injection rate at the water breakthrough in the successive layers. A systematic procedure for ordering of layers and performing calculations is outlined. A procedure for combining layers to avoid instability in the case of low mobility ratio is introduced. The developed model is applied to different examples of stratified reservoirs. The effects of mobility ratio and crossflow between layers are discussed. The effects of variable porosity and fluid saturation are discussed also. It was found that crossflow between layers enhances the oil recovery for systems with favorable mobility ratios (lambda /SUB w/ /lambda /SUB o/ <1) and retards oil recovery for systems with unfavorable mobility ratios. It was found also that crossflow causes the effect of the mobility ratio on oil recovery to become more pronounced. The variation of porosity and fluid saturation with permeability is found to increase oil recovery over that for the case of uniform porosity and saturation for both favorable and unfavorable mobility ratios.
- Research Organization:
- King Saud Univ.
- OSTI ID:
- 6414130
- Journal Information:
- SPEJ, Soc. Pet. Eng. J.; (United States), Journal Name: SPEJ, Soc. Pet. Eng. J.; (United States) Vol. 25:2; ISSN SSPJD
- Country of Publication:
- United States
- Language:
- English
Similar Records
The effect of crossflow on waterflooding performance of stratified reservoirs
Numerical study of waterflood performance in a stratified system with crossflow
An improved method for the determination of pseudo-relative permeability data for stratified systems
Conference
·
Mon Feb 28 23:00:00 EST 1983
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:5522537
Numerical study of waterflood performance in a stratified system with crossflow
Conference
·
Thu Dec 31 23:00:00 EST 1964
·
OSTI ID:6735502
An improved method for the determination of pseudo-relative permeability data for stratified systems
Conference
·
Wed Sep 01 00:00:00 EDT 1982
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:5454122
Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENGINEERING
ENHANCED RECOVERY
FLOW MODELS
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
HYDRODYNAMICS
MATHEMATICAL MODELS
MECHANICS
OIL WELLS
PERMEABILITY
POROSITY
RECOVERY
RESERVOIR ENGINEERING
RESERVOIR ROCK
SATURATION
STRATIFICATION
WATERFLOODING
WELLS
020300* -- Petroleum-- Drilling & Production
ENGINEERING
ENHANCED RECOVERY
FLOW MODELS
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
HYDRODYNAMICS
MATHEMATICAL MODELS
MECHANICS
OIL WELLS
PERMEABILITY
POROSITY
RECOVERY
RESERVOIR ENGINEERING
RESERVOIR ROCK
SATURATION
STRATIFICATION
WATERFLOODING
WELLS