Murphy Oil Company Ltd.

Mocal Energy Limited

Imperial Oil Resources

Nexen Corporation

Canadian Oil Sands Limited

Petro-canada Oil and Gas

Canadian Oil Sands Limited Partnership

Conocophillips Oils Sands Partnership II

Stewart Alexander Johnson

George Cymerman

Khaled Obaia

George J Cymerman

Khaled Helmy Obaia

A relocatable oil sand slurry preparation system is provided for preparing an aqueous oil sand slurry amenable to pipeline conveyance while producing minimum overall rejects, comprising (a) a relocatable rotary digester for slurrying oil sand and water and digesting oil sand lumps to form a pumpable slurry, the rotary digester having a feed end for receiving oil sand and water, a slurrying chamber comprising a plurality of lifters for slurrying the oil sand and water, and a trommel screen end for screening out oversize rejects from the oil sand slurry which falls through the trommel screen; and (b) a relocatable rejects recirculation unit operably associated with the rotary digester for receiving oversize rejects and delivering the rejects back to the rotary digester for further digestion. In a preferred body, relocatable oil sand slurry preparation system further comprises a rejects crusher for crushing oversize rejects prior to delivering rejects back to the rotary digester.

Relocatable oil sand slurry preparation system

Growing community of inventors

Edmonton, Canada

Stewart Alexander Johnson