Microscopic oil displacement of water flooding and sweep efficiency of continuous gas injection could be improved by water alternating gas (WAG) injection. The WAG injection process aims to squeeze more oil out of the reservoirs; in this method, water and gas are alternatively injected into the reservoir. Also, availability of hydrocarbon or CO2 gases in the field makes it attractive for gas-ba...

Abstract Low oil recovery which is very predominant in shale reservoirs has stimulated petroleum engineers to investigate the applications of enhanced methods these formations. One such application injection gases into formation stimulate increased recovery. In many gas flooding projects performed field, miscibility injected usually most desired displacement mechanism, and carbon dioxide (CO 2 ...

To numerically solve squeezed gas-lm forces in a narrow air-gap between moving surfaces, an electrical-equivalent circuit mesh is formed that realizes the nonlinear, modiied Reynolds equation at discrete surface positions. The model is usable when investigating gas-lm forces for large gap displacements and pressure variations. It is also usable as a reference when simple, compact models for squ...

A quantity of miscible contaminant gas is released into the atmospheric boundary layer and the objective is to describe the evolution of contaminant concentration values within the cloud. Although turbulent convective motions will spread the contaminant cloud over distances of tens of meters the only mixing between host and contaminant fluid, and hence reduction of concentration values, takes p...

the purpose of this study was to induce abomasal displacement to the left, and to let the undergraduate and post graduate students get used to the ping sounds of abomasum and other clinical manifestations. the procedure was carried out on eight young bulls, they were sedated and a 2 m flexible tube was inserted through the nasal canal into the rumen. by laparo-rumenotomy, 20 cm of the tube was ...