B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 21/24 (2006.01) B08B 9/093 (2006.01)
Patent
CA 2136797
A method and apparatus for removing fines, such as sand, from a crude oil tank is disclosed. The method generally includes the steps of directing a fluid into the bottom of the tank to stir up the sand settled therein to create a sand and fluid slurry. The method further comprises the step of suctioning the slurry from the tank. To accomplish the steps, a pressure line is coupled to a pump which jettisons fluid through holes in the pressure line located near the bottom of the oil tank to stir the fines, thereby creating a slurry. A drain line is also located near the bottom of the tank, and is coupled to another pump for simultaneously suctioning the slurry through the drain line outside of the tank. In another aspect of the invention, a gravel or dump truck, or the like, is retrofitted with the pressure line and drain line pumps and tubing adapted to couple the drain line to the bed of the truck so that the slurry is extracted from the tank through the drain line into the bed of the truck.
Brown John Forbes
Robertson Glenn D.
Koch Exploration Canada Ltd
Sandman Oilfield Services Ltd
Smart & Biggar
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