Nitrogen miscible displacement of light crude oil; A laboratory study--
Journal Article
·
· SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA)
- National Institute for Petroleum and Energy Research, Bartlesville, OK (US)
A comprehensive laboratory study of N{sub 2} miscible flooding for enhanced recovery of light crude oil was performed. The minimum miscibility pressure (MMP) of N{sub 2} is a major constraint to its EOR application, so an empirical correlation for MMP estimation was developed and found to be reliable. Supporting work included many in-house slim-tube displacement determinations of MMP and the compilation and analysis of previously published data. The reservoir fluid composition, especially the amounts of the methane and ethane-through-pentane fractions, was found to be the major determining factor for miscibility. High-pressure coreflooding tests with sandstone cores were performed to evaluate the effects of gravity stability and injection mode on the N{sub 2} miscible process. N{sub 2}-gas miscible flooding successfully recovered most of the oil from laboratory cores. Gravity-stable and gravity-unstable displacements gave different oil recoveries, as did secondary and tertiary N{sub 2} displacements.
- OSTI ID:
- 6915896
- Journal Information:
- SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA) Vol. 5:1; ISSN SREEE; ISSN 0885-9248
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
04 OIL SHALES AND TAR SANDS
040401 -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040500 -- Oil Shales & Tar Sands-- Properties & Composition
ALKANES
DRILL CORES
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
ETHANE
FLUID INJECTION
FOSSIL FUELS
FUELS
GAS INJECTION
HIGH PRESSURE
HYDROCARBONS
MISCIBLE-PHASE DISPLACEMENT
NITROGEN
NONMETALS
OIL WELLS
ORGANIC COMPOUNDS
PENTANE
PETROLEUM
RECOVERY
RESERVOIR PRESSURE
ROCKS
SANDSTONES
SCALE MODELS
SEDIMENTARY ROCKS
STRUCTURAL MODELS
WELLS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
04 OIL SHALES AND TAR SANDS
040401 -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
040500 -- Oil Shales & Tar Sands-- Properties & Composition
ALKANES
DRILL CORES
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
ETHANE
FLUID INJECTION
FOSSIL FUELS
FUELS
GAS INJECTION
HIGH PRESSURE
HYDROCARBONS
MISCIBLE-PHASE DISPLACEMENT
NITROGEN
NONMETALS
OIL WELLS
ORGANIC COMPOUNDS
PENTANE
PETROLEUM
RECOVERY
RESERVOIR PRESSURE
ROCKS
SANDSTONES
SCALE MODELS
SEDIMENTARY ROCKS
STRUCTURAL MODELS
WELLS