Methods of coating wellbore tools and components having such coatings

摘要

A method for forming a coating upon a wellbore tool includes forming a pattern of features supported by a body and forming a coating over the pattern of features. Forming the pattern of features includes forming a first feature and forming a second feature spaced from the first feature by a first width at a first elevation and by a second width at a second elevation, the second width being different than the first width, and the first elevation being further from an interior region of the body than the second elevation. Also disclosed is a wellbore tool comprising a coating covering a pattern of features and a method of utilizing a wellbore tool in a subterranean formation, the method including forming a pattern of features, forming a coating over the pattern of features, and disposing the wellbore tool in a borehole.

主权项

1. A method for forming a coating upon a wellbore tool, comprising:
forming a body of a wellbore tool, the body comprising an outer surface and an interior region; forming a pattern of features supported by the body, comprising:
forming a first feature; andforming a second feature spaced from the first feature by a first width at a first elevation and by a second width at a second elevation, the second width being different than the first width, the first elevation being further from the interior region than the second elevation; and forming a coating over the pattern of features, comprising forming at least one segment of coating material to fill a volume defined by sidewalk of the pattern of features and to mechanically interlock the coating with the pattern of features, the at least one segment having a wider width between the sidewalks at the second elevation than a width of the at least one segment of coating material between the sidewalk at the first elevation, the width of the at least one segment of coating material between the sidewalls at the first elevation being 100 micrometers or less, forming the at least one segment of coating material comprising applying the coating material over the pattern of features by at least one of evaporation, sputtering, chemical vapor deposition, electroplating, spin coating, spray coating, blanket coating, and dip coating.