Wettability Influence On Hydrocarbons Recovery

The increasing global demand for energy powered by rapidly increasing industrialization and changing life-style, especially in developing countries requires increasing production of crude oil and gas safely and cost effectively. Many declining oilfields have become candidates for waterflooding in order to meet the energy demand. It has been shown that wettability of an oil reservoir rock affects almost all types of physical parameters necessary for reservoir management and oil recovery. Therefore, a lot of interest, efforts and money have gone into research to understand the role of wettability and its impact on fluid transport descriptors in petroleum reservoir systems and how it can be manipulated to improve oil recovery during waterflooding process. Wettability at the pore scale affects important multiphase properties such as capillary pressure, relative permeability, residual saturation and resistivity index. Thus, oil recovery efficiency depends on the wetting condition of the reservoir rock system.