E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/32
E21B 43/16 (2006.01) E21B 41/00 (2006.01) E21B 43/00 (2006.01) E21B 43/29 (2006.01)
Patent
CA 1037862
ABSTRACT OF THE DISCLOSURE The method includes circulating steam, solvent or fluids through the sand while constantly agitating the sand to scrub and wash the oil free whereupon the oil is carried back to the surface. A vibrating probe assembly is utilized which is highly manoeuverable and which fluidizes the sand immediately surrounding same thus facilitating the movement of the probe and assisting in the scrubbing and separating action of the solvents or steam upon the sand. The probe in- cludes means for extending same into the sand to the bottom of a well bore so that the vibration in conjunction with the probe configuration moves the probe through the sand in a horizontal plane or, if desired, up and down at an angle from the horizontal. The voids remaining in the clean sand are filled with water so that the probe floats on the sur- face of the water. The oil which has been separated from the sand floats on the water to the well bore and thence is elevated to the surface by the pressure of the steam, solvent or fluid circulation.
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