[1] Remaining oil saturation established by waterflooding was measured in Indiana limestone in its original, water-wet state and under mixed-wet conditions established by adding organic acid to the oil phase. The porous plate technique was used to establish initial oil saturations ranging from Snwi1⁄4 0.23 to 0.93 under capillary-dominated conditions. For water-wet conditions, the residual oil ...

Waterflooding is one of the most common reservoir development programs, driving oil in porous media to production wells by injecting high-pressure water into reservoir. In process development, identifying underground flow distribution, so as take measures such plugging and profile control for high permeability layers prevent channeling, great importance oilfield management. However, influenced ...

A well control optimization method is a key technology to adjust the flow direction of waterflooding and improve effect oilfield development. The existing mainly based on algorithms numerical simulators. In face larger models, longer periods, or reservoir models with large number optimized wells, there are many variables, which will cause algorithm convergence difficulties costs. application no...

Abstract Modified or low-salinity waterflooding of carbonate oil reservoirs is considerable economic interest because potentially inexpensive incremental production. The injected modified brine changes the surface chemistry rock and crude interfaces detaches some adhered oil. Composition design to enhance recovery determined by labor-intensive trial-and-error laboratory corefloods. Unfortunatel...