Downhole tool with fluted anvil
AssigneeExelis, Inc.
InventorEric Brian Ackermann
Life of this patent
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Abstract
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.
Claims20
A downhole tool device disposable in a casing of an oil or gas well, the device comprising:
- a) a mandrel with an element disposed thereon compressible and radially expandable to seal between the mandrel and the casing, and with a slip ring disposed thereon radially expandable to engage the casing, and with a cone adjacent the slip ring to radially displace the slip ring, and with the element, the slip ring and the cone being pressable against a lower anvil on the mandrel;
- b) a scoop formed in a bottom of the lower anvil with a concave profile oriented at an acute angle with respect to a longitudinal axis of the mandrel and extending across a majority of the bottom;
- and
- c) a plurality of helical flutes formed in an exterior of the lower anvil and extending circumferentially and helically around the longitudinal axis of the mandrel.
An anvil device configured for a mandrel of a downhole tool disposable in a casing of an oil or gas well, the device comprising:
- a) a single scoop formed in a bottom of the anvil with a concave profile oriented at an acute angle with respect to a longitudinal axis of the anvil and extending across a majority of the bottom of the anvil and having a radius of curvature greater than a diameter of the anvil;
- and
- b) a plurality of helical flutes formed in an exterior of the lower anvil and extending circumferentially and helically around the longitudinal axis of the anvil.
A downhole tool device disposable in a casing of an oil or gas well, the device comprising:
- a) a mandrel with an element disposed thereon compressible and radially expandable to seal between the mandrel and the casing, and with a slip ring disposed thereon radially expandable to engage the casing, and with a cone adjacent the slip ring to radially displace the slip ring, and with the element, the slip ring and the cone being pressable against a lower anvil on the mandrel;
- b) a scoop formed in a bottom of the lower anvil with a concave profile oriented at an acute angle with respect to a longitudinal axis of the mandrel and extending across a majority of the bottom;
- c) a plurality of helical flutes formed in an exterior of the lower anvil and extending circumferentially and helically around the longitudinal axis of the mandrel,
- d) an opposite bevel formed in the bottom of the anvil opposite the scoop and forming a bottom edge therebetween;
- and
- e) means on the bottom of the mandrel for engaging a top of another downhole tool disposed under the mandrel to resist rotation of the mandrel with respect to the another downhole tool.
A mule shoe device of a downhole plug disposable in a casing of an oil or gas well and having a packer compressible and radially expandable to seal between the mandrel and the casing, the device comprising:
- a) a single scoop formed in a bottom of the mule shoe with a concave profile oriented at an acute angle with respect to a longitudinal axis of the downhole plug and extending across a majority of the bottom of the mule shoe and having a radius of curvature greater than a diameter of the bottom of the mule shoe;
- or
- b) a plurality of helical flutes formed in an exterior of the mule shoe and extending circumferentially and helically around the longitudinal axis of the downhole plug;
- or
- c) both.
Dependencies are inferred from the claim text.