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AssigneeSmith International, Inc.
InventorsTrung Leduc, Huward Paul Fontenot, Alberto Zubia, Robert James Costo
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A method of flushing a wellbore fluid from a downhole tool containing a bearing package includes pumping hydraulic oil through at least one of a hydraulic inlet line and at least one of a pneumatic inlet line connected to the main housing and into an annulus formed between the bearing package and a main housing of the downhole tool, wherein the hydraulic oil replaces the wellbore fluid in the annulus, removing the wellbore fluid from the annulus through at least one hydraulic outlet line and at least one pneumatic outlet line connected to the main housing, pumping air through the at least one pneumatic inlet line connected to the main housing and removing the hydraulic oil from the at least one pneumatic inlet line connected to the main housing, and removing the hydraulic oil through at least one pneumatic outlet line connected to the main housing.
A method of flushing a wellbore fluid from a downhole tool containing a bearing package, the method comprising:
A flushing system for removing a wellbore fluid from a downhole tool containing a bearing package, the flushing system comprising:
Dependencies are inferred from the claim text.