Coating system for tubular gripping components
AssigneeFrank's International, LLC
InventorsBrennan S. Domec, Jeremy R. Angelle
Life of this patent
Estimating the term…
Abstract
A gripping tool for gripping oilfield tubulars includes a gripping element having a substrate, and at least one gripping surface configured to engage an oilfield tubular, the at least one gripping surface being formed on the gripping element. The at least one gripping surface includes a coating on an outer surface of the substrate, the coating includes a carrier and a plurality of particles at least partially embedded in the carrier. The particles each have a hardness that is greater than a hardness of the carrier and a base metal of the gripping element, and the particles extend outward from the carrier and are configured to engage a structure that is gripped by the gripping tool.
Claims6
A method for manufacturing a gripping tool, comprising:
- forming a gripping surface on at least a portion of a substrate without creating a heat-affected zone in the substrate by applying a coating comprising a carrier and a plurality of particles onto the substrate;
- and
- applying a sealant onto the coating after forming the coating on the at least a portion of the substrate,
- wherein the plurality of particles have a hardness that is greater than a hardness of a base metal of the substrate and greater than a hardness of the carrier, and
- wherein the plurality of particles extend at least partially outward from the carrier and are configured to at least partially embed into a material that is at least as hard as the base metal of the substrate.
Dependencies are inferred from the claim text.