Liquid purification or separation – Structural installation – Closed circulating system
Patent
1981-08-05
1983-10-18
Hruskoci, Peter A.
Liquid purification or separation
Structural installation
Closed circulating system
175206, 209259, 209274, 210170, 210316, 210449, 210460, B01D 2302
Patent
active
044104251
ABSTRACT:
An apparatus for filtering drilling mud that is being recirculated out of the drill hole, which substantially comprises the flow conveying tubular section having at its first end a flanged base portion sealably attachable to the top portion of the hydril and open-ended at its second end for allowing fluid flow therethrough. Also provided is an outer tank portion encapsulating substantially the upper half portion of said tubular section, the tank portion having an open-ended top portion for receiving flow out of the end portion of the flow conveying tubular section and integrally attached at its bottom portion to the outer surface of the flow conveying tubular section, the outer tank portion defining a container for receiving the flow from the tubular section. There is a first filter means interconnecting the top portion of the tubular section and the top portion of the tank section, the filter means comprising a plurality of angulated vanes equally and circumferentially mounted between the tank section and the tube section and defining an angulated filtering surface therebetween, and secondary filter means comprising a plurality of slots through the wall of that portion of the tubular section within the tank portion, for conveying fluid out of the tubular member into the tank portion, and a fluid conveying means for conveying fluid out of the tank section to be recirculated down the drill hole.
REFERENCES:
patent: 1405873 (1922-02-01), Sellin
patent: 3789992 (1974-02-01), Treplin et al.
patent: 3880762 (1975-04-01), Wise
patent: 4098698 (1978-07-01), Lamothe
patent: 4116288 (1978-09-01), Love
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