E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 37/00 (2006.01) E21B 21/00 (2006.01) E21B 29/00 (2006.01) E21B 41/00 (2006.01)
Patent
CA 2265039
An apparatus and method for drawing small milling debris into a combination milling and debris retrieval tool, during the performance of the milling operation. A milling tool has a fluid intake port near its lower end, where debris-laden fluid is drawn into the milling tool and subsequently into a separator section. The separator section has a debris deflection tube and a screen for separating the debris from the fluid. Fluid is drawn into the tool by either a set of eductor nozzles or a downhole motor and pump.
Cassel Terry E.
Davis John P.
Baker Hughes Incorporated
Sim & Mcburney
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