Controlled coating apparatus, systems, and methods
AssigneeHalliburton Energy Services, Inc.
InventorMichael T. Pelletier
Life of this patent
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Abstract
Apparatus and systems may operate to provide a first reactant as a gas that flows under reduced atmospheric pressure to interact with a surface, such as a tool body surface, the interaction confined to a passage within the tool body, wherein the passage includes the surface and extends without interruption from an entrance end of the passage to an exit end of the passage. Additional activity may include providing a second reactant as a gas under the reduced atmospheric pressure, subsequent to the first reactant, to interact with the surface of the tool body; and repeated provision of the first and second reactants until a selected coating thickness on the surface is formed. Additional apparatus, systems, and methods are disclosed.
Claims7
A system, comprising:
- a tool body;
- gas valves to control entry of first and second reactants via at least one flow tube into a passage within the tool body, the passage including a surface and extending without interruption from an entrance end of the passage to an exit end of the passage;
- a mass measurement device or a refractive index measurement device coupleable to the exit end to indicate a thickness of a coating on the surface as the first and the second reactants interact with the surface to form the coating;
- and
- a vacuum pump to promote movement of the first and the second reactants within the passage from the entrance end to the exit end.
Dependencies are inferred from the claim text.