Heavy oil viscosity reduction and production

Details Heavy oil viscosity reduction and production Heavy oil viscosity reduction and production

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) E21B 28/00 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2290096

This invention provides an apparatus and process for producing heavy crude oil from a subterranean formation penetrated by a well bore. In accordance with the process, an aqueous alkaline chemical solution is introduced into or formed in the well bore penetrating the formation. The aqueous alkaline chemical solution mixes and reacts with produced heavy crude oil in the well bore and ultrasonic waves are emitted into the mixture whereby an emulsion is formed. The viscosity of the formed emulsion is less than that of the crude oil or the crude oil and water mixture flowing into the well bore which allows the oil to be more efficiently pumped to the surface and transported for further processing.

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