The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform
Paul B. Crawford - One of the best experts on this subject based on the ideXlab platform.
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PREDICTED Areal Sweep EFFICIENCY WHEN USING HORIZONTAL WELLS IN FIVE-SPOT PATTERNS
Fuel, 1991Co-Authors: Terry A. Strickland, Paul B. CrawfordAbstract:Abstract Studies have been made to estimate the results when using horizontal wells in five-spot patterns for enhanced oil recovery programmes. It was found that when a horizontal well was used as the centre well of a five-spot pattern, there was very little effect on the Areal Sweep efficiency for certain well lengths and orientations. A horizontal well does permit increased well injectivity and this could be beneficial when injecting steam into heavy oil reservoirs.
Bo Dong - One of the best experts on this subject based on the ideXlab platform.
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lbm simulation of viscous fingering phenomenon in immiscible displacement of two fluids in porous media
Transport in Porous Media, 2011Co-Authors: Bo Dong, Yuying YanAbstract:This article presents the lattice Boltzmann simulation of viscous fingering phenomenon in immiscible displacement of two fluids in porous media. Such phenomenon generally takes place when a less viscous fluid is used to displace a more viscous fluid, and it can be found in many industrial fields. Dimensionless quantities, such as capillary number, Bond number and viscosity ratio between displaced fluid and displacing fluid are introduced to illustrate the effects of capillary force, viscous force, and gravity on the fluid behaviour. The surface wettability, which has an impact on the finger pattern, is also considered in the simulation. The numerical procedure is validated against the experiment about viscous fingering in a Hele-Shaw cell. The displacement efficiency is investigated using the parameter, Areal Sweep efficiency. The present simulation shows an additional evidence to demonstrate that the lattice Boltzmann method is a useful method for simulating some multiphase flow problems in porous media.
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Simulation of the Influence of Surface Wettability on Viscous Fingering Phenomenon in Porous Media
Journal of Bionic Engineering, 2010Co-Authors: Bo Dong, Yuying Yan, Yongchen SongAbstract:Fingering phenomena are common occurrence in the natural world. It generally takes place when a less viscous fluid displaces a more viscous fluid typically in porous media. Nowadays, such phenomena have extensively been studied due to its importance in many industrial fields. In this paper, the effects of surface wettability on finger pattern are studied and simulated numerically by the Lattice Boltzmann method (LBM). The displacement efficiency is investigated by using two parameters, namely, the breakthrough time and the Areal Sweep efficiency. The simulation has demonstrated that surface wettability will influence the finger pattern no matter the gravity is considered or not, but in the presence of gravity, the finger pattern is much more complicated and irregular due to the coexistence and competition of capillary force, viscous force and gravity.
Terry A. Strickland - One of the best experts on this subject based on the ideXlab platform.
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PREDICTED Areal Sweep EFFICIENCY WHEN USING HORIZONTAL WELLS IN FIVE-SPOT PATTERNS
Fuel, 1991Co-Authors: Terry A. Strickland, Paul B. CrawfordAbstract:Abstract Studies have been made to estimate the results when using horizontal wells in five-spot patterns for enhanced oil recovery programmes. It was found that when a horizontal well was used as the centre well of a five-spot pattern, there was very little effect on the Areal Sweep efficiency for certain well lengths and orientations. A horizontal well does permit increased well injectivity and this could be beneficial when injecting steam into heavy oil reservoirs.
Yuying Yan - One of the best experts on this subject based on the ideXlab platform.
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lbm simulation of viscous fingering phenomenon in immiscible displacement of two fluids in porous media
Transport in Porous Media, 2011Co-Authors: Bo Dong, Yuying YanAbstract:This article presents the lattice Boltzmann simulation of viscous fingering phenomenon in immiscible displacement of two fluids in porous media. Such phenomenon generally takes place when a less viscous fluid is used to displace a more viscous fluid, and it can be found in many industrial fields. Dimensionless quantities, such as capillary number, Bond number and viscosity ratio between displaced fluid and displacing fluid are introduced to illustrate the effects of capillary force, viscous force, and gravity on the fluid behaviour. The surface wettability, which has an impact on the finger pattern, is also considered in the simulation. The numerical procedure is validated against the experiment about viscous fingering in a Hele-Shaw cell. The displacement efficiency is investigated using the parameter, Areal Sweep efficiency. The present simulation shows an additional evidence to demonstrate that the lattice Boltzmann method is a useful method for simulating some multiphase flow problems in porous media.
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Simulation of the Influence of Surface Wettability on Viscous Fingering Phenomenon in Porous Media
Journal of Bionic Engineering, 2010Co-Authors: Bo Dong, Yuying Yan, Yongchen SongAbstract:Fingering phenomena are common occurrence in the natural world. It generally takes place when a less viscous fluid displaces a more viscous fluid typically in porous media. Nowadays, such phenomena have extensively been studied due to its importance in many industrial fields. In this paper, the effects of surface wettability on finger pattern are studied and simulated numerically by the Lattice Boltzmann method (LBM). The displacement efficiency is investigated by using two parameters, namely, the breakthrough time and the Areal Sweep efficiency. The simulation has demonstrated that surface wettability will influence the finger pattern no matter the gravity is considered or not, but in the presence of gravity, the finger pattern is much more complicated and irregular due to the coexistence and competition of capillary force, viscous force and gravity.
M. Mehdi Nassabeh - One of the best experts on this subject based on the ideXlab platform.
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Recommendations for Optimizing the Efficiency of PolymerFlooding Techniques in Production Operation of an Oilfield
Electronic Journal of Biology, 2017Co-Authors: Afshin Davarpanah, M. Mehdi NassabehAbstract:Thermal and chemical flooding are good alternatives to recover heavy oil. Polymer flooding procedure is one of the most important enhanced oil recovery (EOR) methodologies which improve the mobility ratio of water and oil. Adding polymer in water flooding method which involves the addition of soluble polymers in water before being injected into the reservoir, increases water viscosity even by adding a small amount of these materials. It, too, reduces the swept zone permeability and allows an increase in the vertical and Areal Sweep efficiency of the water injection. In this study, Polymers containing compounds of long chain such as polyacrylamide, polysaccharides, etc. leads to increase the oil movement ratio to water movement ratio. Another effect of this injection in to the reservoir is blocking the routes which have higher permeability by passing the time. As a result the water passes through these pathways are being blocked. Consequently new directions caused to increase recovery factor in the reservoir. Therefore, by increasing shear stress regarding the oil movement, the mobility will be increased.