DISSIPATIVE SURFACTANT AQUEOUS BASED DRILLING SYSTEM FOR USE IN HYDROCARBON RECOVERY OPERATIONS FROM HEAVY OIL AND TAR SANDS

摘要

A water based drilling fluid which includes an aqueous fluid and a water soluble dissipative surfactant composition is described wherein the dissipative surfactant composition includes at least one fatty acid or ester derivative of a plant or vegetable oil. Also described are methods of using such aqueous based drilling fluids including the dissipative surfactant composition as described in hydrocarbon recovery operations associated with oil/tar sand where such fluids act to increase the dispersant qualities of hydrocarbons within the oil/tar sand and where such fluid exhibit a reduced coefficient of friction.