A method for processing drilling fluid comprising an oil and water
emulsion and solid material includes breaking the emulsion into an oil
phase and a water phase, increasing the surface area of the solid
material, adsorbing at least some of the water phase to the increased
surface area of the solid material, and recovering at least some of the
oil phase. The drilling fluid may be moved within a container to break
the emulsion and increase the surface area of the solids material. Water
phase or solid material may be added to the drilling fluid to maximize
the amount of water phase adsorbed into the solid material and minimize
the amount of oil phase adsorbed to the solid material. The drilling
fluid may be processed while being transported between locations. The
solid material may be dried in a thermal dryer to vaporize and recover
the water phase and any adsorbed oil phase.