An analysis of gravity-segregated piston-like displacement in stratified reservoirs

Journal Article · Fri Jan 31 23:00:00 EST 1992 · SPE (Society of Petroleum Engineers) Reservoir Engineering; (United States)

DOI:https://doi.org/10.2118/18598-PA· OSTI ID:5604677

Ekrann, S ^[1]

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1. Rogaland Research Inst. (NO)

The vertical sweep efficiency of a reservoir flooding process may be influenced strongly by gravity if a density contrast exists between displacing and displaced fluids. This paper develops the conditions for gravity-stable displacement in stratified oil and gas reservoirs. Results are given for the shape of a gravity-stabilized displacement front and for the asymptotic behavior of nonstable segregated fronts. Partial stability may prevail in the latter case. The analysis assumes piston-like displacement and incompressible fluids and is based on the vertical-equilibrium (VE) approximation.

• OSTI ID: 5604677
• Journal Information: SPE (Society of Petroleum Engineers) Reservoir Engineering; (United States), Journal Name: SPE (Society of Petroleum Engineers) Reservoir Engineering; (United States) Vol. 7:1; ISSN SREEE; ISSN 0885-9248
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DENSITY
DISPLACEMENT FLUIDS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
NATURAL GAS
PETROLEUM
PHYSICAL PROPERTIES
RESERVES
RESERVOIR ROCK
RESOURCES
STABILITY
STRATIFICATION
SWEEP EFFICIENCY