C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) B01D 21/08 (2006.01)
Patent
CA 2099554
When drilling wells a drill fluid is used to lubricate the drill bit and remove the drilled out material from the bottom of the drill hole. In this invention a partly cylindrical and partly conical vertical tank, capable of being moved from site to site, permits the contaminated drill fluid to be cleaned for re-use in the drilling operation, thereby permitting less drill fluid to be used in each drilling operation. The contaminated drill fluid is introduced into the tank at its middle, through an input centrifuge pipe which enlarges and circles the inside of the tank. The centrifuge pipe has slots along its bottom. As the contaminated drill fluid is pumped into the tank the drilled out material settles out and the clear fluid rises to the top of the tank, is retrieved through the output pipe and re-used. The intake of the output pipe is directed upwards and flanged outwards to form a bowl like effect.
Bennett Jones Llp
Kallis Lyle Grant
Peak Energy Services Ltd.
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