E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 29/06 (2006.01) E21B 10/32 (2006.01) E21B 29/00 (2006.01) E21B 47/09 (2006.01)
Patent
CA 2314622
A tool for milling or cutting tubular members downhole in a well, having a plurality of pivotable blades pivoted upwardly by upward movement of a hollow cylindrical hydraulic; piston within the tool body. The piston wall is directly below and aligned with the blade, minimizing the diameter of the tool. A fluid tell- tale is provided to indicate the extent of deployment of the blades. The blades can be withdrawn by driving the piston downwardly.
Davis John Phillip
Lynde Gerald D.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
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