Miscible displacement recovery tests with nitrogen

Journal Article · Thu Feb 01 04:00:00 EST 1990 · SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA)

DOI:https://doi.org/10.2118/17378-PA· OSTI ID:7053587

Glaso, 0 ^[1]

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1. Continental Shelf and Petroleum Technology Institute (NO)

High-pressure slim-tube tests and phase-behavior studies were performed with reservoir fluid and three-component hydrocarbon mixtures. The amount of methane and intermediates in the reservoir fluid were varied while other parameters that affect the oil recovery were kept constant. The effects of displacement velocity, temperature, and length of the packed column on slim-tube recovery were also investigated. The results obtained show that the amount of methane and intermediates in the reservoir fluid has a significant effect on minimum miscibility pressure (MMP). The results suggest very strongly that a reservoir fluid with a low methane content needs a long path length to develop miscibility with N{sub 2} (a large fraction of the oil is bypassed in the first part of the column). The slim-tube oil recovery, and hence the average microscopic displacement efficiency of the process, is shown to increase significantly with slim-tube length when injection pressure and other variables are kept constant. The results from simulation tests of phase behavior and fluid flow in the slim tube confirm some of the conclusions made from the experimental results obtained in this work. An N{sub 2} MMP correlation was developed from displacement test data reported in the literature and in the present study.

• OSTI ID: 7053587
• Journal Information: SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA), Journal Name: SPE (Society of Petroleum Engineers) Reservoir Engineering; (USA) Vol. 5:1; ISSN 0885-9248; ISSN SREEE
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CORRELATIONS
DATA
DISPERSIONS
DISPLACEMENT FLUIDS
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID FLOW
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GAS INJECTION
HYDROCARBONS
INFORMATION
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
NITROGEN
NONMETALS
NUMERICAL DATA
OIL WELLS
ORGANIC COMPOUNDS
PETROLEUM
RECOVERY
RESERVOIR ROCK
SCALE MODELS
STRUCTURAL MODELS
VELOCITY
WELLS