Dual feed centrifuge

B - Operations – Transporting – 04 – B

Patent

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Details

B04B 3/04 (2006.01) B04B 11/02 (2006.01)

Patent

CA 2726980

A dual feed centrifuge system for separating solids from fluids in a drilling mud, the centrifuge system including a bowl, a screw conveyor rotatably mounted within the bowl, a first feed pipe mounted within the screw conveyor for feeding a drilling mud through a first feed port m a wall of the screw conveyor to a first annular space between the bowl and the wall of the screw conveyor; and a second feed pipe mounted within the screw conveyor for feeding a drilling mud through a second feed port in the wall of the screw conveyor to a second annular space between the bowl and the wall of the screw conveyor The multiple feed ports may allow the centrifuge to operate more efficiently with both weighted and unweighted drilling fluids.

La présente invention concerne un système de centrifugeuse à alimentation double pour séparer des solides de fluides dans une boue de forage, le système de centrifugeuse comprenant : une cuve, un convoyeur à vis monté avec faculté de rotation au sein de la cuve ; un premier tuyau dalimentation monté au sein du convoyeur à vis pour délivrer une boue de forage à travers un premier orifice dalimentation dans une paroi du convoyeur à vis vers un premier espace annulaire entre la cuve et la paroi du convoyeur à vis ; et un second tuyau dalimentation monté au sein du convoyeur à vis pour délivrer une boue de forage à travers un second orifice dalimentation dans la paroi du convoyeur à vis vers un second espace annulaire entre la cuve et la paroi du convoyeur à vis. Les multiples orifices dalimentation peuvent permettre à la centrifugeuse de fonctionner plus efficacement avec des fluides de forage à la fois denses et non denses.

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