Using energy balance to determine pore-scale wettability

Prediction of wettability variation and its impact on flow using pore- to reservoir-scale simulations

We describe a poreto reservoir-scale investigation of wettability variation and its impact on waterflooding. We use a three-dimensional pore-scale network model of a Berea sandstone to predict relative permeability and capillary pressure hysteresis. We successfully predict experimentally measured relative permeability data for the water-wet case, and demonstrate that the model captures experime...

Pore-scale modeling: Effects of wettability on waterflood oil recovery

Using GIS to Determine Wind Energy Potential in Minnesota, USA

Wind power is an alternative to fossil fuels. It is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation and uses relatively little land. Recent studies indicate that Minnesota has plentiful wind energy potential including the possibility to use wind to generate 25 times the electricity Minnesota used in 2010 (American Wind Energy Association, 2...

Using nonequilibrium measurements to determine macromolecule free-energy differences.

S ince the advent of techniques that enable experimentalists to manipulate individual macromolecules, there has been a need for accurate estimates of free-energy changes between an initial equilibrium state and a second equilibrium state that is arrived at by a nonequilibrium manipulation. Atomic force microscopy and optical laser tweezers, often using macromolecules attached to m-sized magneti...

Investigation of pore-scale random porous media using lattice boltzmann method

The permeability and tortuosity of pore-scale two and three-dimensional random porous media were calculated using the Lattice Boltzmann method (LBM). Effects of geometrical parameters of medium on permeability and tortuosity were investigated as well. Two major models of random porous media were reconstructed by computerized tomography method: Randomly distributed rectangular obstacles in a uni...