Exelis Inc.

Eric Brian Ackermann

Randall Williams Nish

An anvil or mule shoe of a downhole tool disposable in a casing of an oil or gas well includes a scoop formed in a bottom of the downhole tool with a concave profile oriented at an acute angle with respect to a longitudinal axis of the downhole tool and extending across a majority of the bottom; and/or a plurality of helical flutes formed in an exterior of the anvil of the downhole tool and extending circumferentially and helically around the longitudinal axis of the downhole tool.

Downhole tool with fluted anvil

A downhole tool with a frangible cone and slip system is disposable in a casing of an oil or gas well and includes a slip ring and a cone disposal on a mandrel. An interior of the slip ring and an exterior of the cone have mating flat facets circumscribing the interior or the exterior of the respective slip ring or cone, and forming an acute angle with respect to a longitudinal axis of the mandrel. The flat facets of the cone are contiguous with or bordering one another around a circumference of the cone, or are separated by a flush region substantially flush with adjacent flat facets, to form a substantially smooth circumference around the flat facets.

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Salt Lake City, UT, United States of America

Eric Brian Ackermann