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US 12,352,136 B2Granted
Downhole sand control screen system
AssigneeChevron U.S.A. Inc.
InventorsJeremy Alexander Davis, Antonio Lazo, Reza Sarrafi-Nour, David Reuel Underdown
Life of this patent
Estimating the term…
Abstract
System and method of non-line-of-sight coating of a sand screen for use in wellbores during the production of hydrocarbon fluids from subterranean formations. The coatings can have uniformly coated internal and external surfaces.
Claims12
A downhole system comprising:
- a wellbore;
- a sand screen placed within the wellbore, wherein the sand screen comprises a cylindrical woven mesh, the cylindrical woven mesh comprising an interior surface and an exterior surface, and wherein the cylindrical woven mesh is coated with a coating such that the coating on the interior surface and the exterior surface has a coating thickness of between 5 and 100 microns,
- wherein the coating is uniform such that the coating thickness on the interior surface, the exterior surface, and a contour surface of the cylindrical woven mesh are all within 20 microns of each other,
- wherein the coating comprises an infiltrated layer that is one or a combination of carbide, boride, nitride, carbo-nitride and silicide phases and the coating is formed by a chemical vapor infiltration process, and
- wherein the coating is acid resistant and heat resistant to 800° F.
2 more elements
Dependencies are inferred from the claim text.