...G. Q. Tang; N. R. Morrow Summary The effect of aging and displacement temperatures and brine and oil composition on wettability and the recovery of crude oil by spontaneous imbibition and waterflooding has been investigated. This study is based on displacement tests in Berea sandstone with three...

...D. D. Irwin; J. P. Batycky Summary Much of western Canada's conventional crude oil occurs in vertically continuous reefal carbonate structures. A common strategy has been to support oil production through downward vertical gas displacement. The gravity-stable displacement yields excellent...

... time-steps can be taken without loss in solution accuracy. We present results of the streamline-based simulator applied to tracer, waterflooding, and first-contact miscible (FCM) displacements in two and three dimensions. Where possible, comparisons with conventional methods indicate...

... upstream oil & gas spe reservoir engineering recovery saturation mmp gasflood injection gas reservoir displacement composition enhanced recovery oil recovery co 2 fat tube reservoir surveillance coreflood reservoir simulation orw chemical flooding methods flow in porous media fluid...

.../water contact angles often appear to be near 90° or perhaps the result of pinned interfaces between oil- and water-wet regions, consistent with the micromodel experiments. At this small pressure difference, brine has displaced much of the oil from weakly water-wet pore walls and invades many...

... that accumulated under the caprock. The dependence on the reservoir parameters can be summarized by dimensionless groups. There is a dimensionless time for the vertical displacement of oil by gravity. The accumulation of a high oil saturation under the caprock is dependent on the ratio of the capillary transition...

... measurement spe reservoir engineering capillary pressure reservoir simulation mass transfer rate diffusivity mass transfer displacement flow in porous media coefficient saturation fluid dynamics Injection of carbon dioxide and/or enriched hydrocarbon gases is still a popular enhanced oil...

...M. R. Thiele; R. P. Batycky; M. J. Blunt; F. M. Orr, Jr. Summary We present a fast technique for modeling convective displacements that are dominated by large-scale reservoir heterogeneities. The novel feature of our method is the integration of any 1D solution with periodically updated streamtubes...

...M. A. Langenberg; D. M. Henry; M. R. Chlebana Summary The double-displacement process (DDP) is a method for immiscible tertiary gas displacement of a watered-out oil reservoir. In the Hawkins field of east Texas, the effectiveness of the immiscible nitrogen injection process is strongly driven...

...K. K. Mohanty; W. H. Masino, Jr.; T. D. Ma; L. J. Nash Summary The objective of this work is to identify the role of three-hydrocarbon-phase flow in the displacement of a reservoir oil by light-hydrocarbon-gas mixtures (methane through n -butane). Slim-tube displacements were conducted with several...

... interpretation of experimental observations from a microscopic standpoint. The simulated capillary pressure data demonstrate that some standard wettability tests (such as Amott-Harvey and free imbibition) may give misleading results when the sample is fractionally wet in nature. Waterflood displacement...

...J. Jane Shyeh-Yung; Maurice P. Stadler Summary Reservoir-condition phase-behavior and tertiary-gasflood studies have been conducted in the laboratory to investigate the effect of hydrocarbon-injectant composition and pressure on oil-displacement efficiency. Lower oil-recovery efficiencies and lower...

... data mining enhanced recovery upstream oil & gas blunt modeling & simulation water saturation displacement mobility total mobility empirical model pseudofunction fluid dynamics mobility ratio wag flood spe reservoir engineering flood miscible method flow in porous media flood...

.... The properties of these heavy pseudocomponents control the development and behavior of the heavy phase. The EOS fluid characterization was used to study three-phase, enriched-gas-drive displacement mechanisms. For the Kuparuk fluids, a condensing/vaporizing displacement mechanism is predicted in a three-phase...

... oil morrow recovery engineering displacement cobr system brine composition waterflooding oil recovery waterflood recovery spe reservoir engineering flow in porous media fluid dynamics moutray sandstone berea sandstone enhanced recovery Numerous reports of experimental work...

...H. A. Tchelepi; F. M. Orr, Jr. Summary Two- and three-dimensional computations with a hybrid finite-difference/particle-tracking technique are compared for unstable displacements. In both homogeneous and heterogeneous porous media, gravity segregation is much more effective in 3D than in 2D...

...Yih-Bor Chang; M. T. Lim; G. A. Pope; K. Sepehrnoori Summary A finite-difference, equation-of-state (EOS), compositional simulator has been used to study CO 2 flooding. First, unstable first-contact-miscible (FCM) displacements were simulated with a fine mesh to investigate the transition from...

... of the solubility and displacement behavior of West Sak oil with CO 2 and hydrocarbon gases shows simple black-oil to complex, multiphase equilibrium behaviors. 23 9 1990 8 2 1994 10 2 1994 1 5 1994 1 5 1994 Copyright 1994, Society of Petroleum Engineers solubility two-phase...

... 25 10 1993 1 5 1994 1 5 1994 Copyright 1994, Society of Petroleum Engineers experiment simulation heterogeneity upstream oil & gas dispersion efficiency displacement coreflood hcpvi breakthrough phase behavior flood reservoir engineering fluid dynamics...

... Copyright 1994, Society of Petroleum Engineers gas injection method modeling & simulation concentration displacement equation gas saturation enhanced recovery composition composition path unstable front spe reservoir engineering simulation result viscous fingering upstream oil...