Method for removing fines from a crude oil tank

Details Method for removing fines from a crude oil tank Method for removing fines from a crude oil tank

1995-02-03

1996-12-10

El-Arini, Zeinab

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 221, 134 2218, 210634, B01D 1102, B08B 700

Patent

active

055826520

ABSTRACT:
A method for removing fines, such as sand, from a crude oil tank 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 includes 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. 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.

REFERENCES:
patent: 3382934 (1968-05-01), Spear
patent: 4328094 (1982-05-01), Peck
patent: 4836017 (1989-06-01), Bozek
patent: 4995495 (1991-02-01), Krynski
patent: 5091016 (1992-02-01), Krajicek et al.
patent: 5152843 (1992-10-01), McDonald et al.

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