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US 10,118,220 B2Granted
Mold assemblies used for fabricating downhole tools
AssigneeHalliburton Energy Services, Inc.
InventorsJeffrey G. Thomas, Clayton Arthur Ownby, Grant O. Cook, III, Garrett T. Olsen, Daniel Brendan Voglewede
Life of this patent
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Abstract
An example mold assembly for fabricating an infiltrated downhole tool includes a mold forming a bottom of the mold assembly, and a funnel operatively coupled to the mold and having an inner wall, an outer wall, and a cavity defined between the inner and outer walls. An infiltration chamber is defined at least partially by the mold and the funnel. The inner wall faces the infiltration chamber and the outer wall forms at least a portion of an outer periphery of the mold assembly.
Claims8
A method, comprising:
- placing a mold assembly within a furnace, the mold assembly including a mold forming a bottom of the mold assembly, a funnel operatively coupled to the mold, and an infiltration chamber defined at least partially by the mold and the funnel, wherein the funnel provides an inner wall, an outer wall, and a cavity defined and closed to contain a gas between the inner and outer walls, and wherein the inner wall faces the infiltration chamber and the outer wall forms at least a portion of an outer periphery of the mold assembly;
- removing the mold assembly from the furnace to cool molten contents disposed within the infiltration chamber;
- and
- varying a thermal profile of the molten contents with the funnel and thereby facilitating directional solidification of the molten contents.
1 more element
Dependencies are inferred from the claim text.