Patent ID: 8524318
Filing Date: 2013-09-03
Classification: B05D,B65D,C23C,F16L,F17D,Y10T

Abstract:
1. A method for reducing the adhesion of solidified condensables to the interior surface of a conduit and/or associated equipment transporting or processing a fluid stream in oil and gas exploration and production, petroleum refining and/or petrochemistry, said associated equipment being spools, valves, passage ways of valve internal, heat exchangers, separators, fractionators, turbines, vessels, tanks, wellbores, annuli, pipes, pipelines, tubes, umbilicals, ducts, channels and columns, by providing the conduit interior surface with a coating layer exhibiting a static contact angle of the sessile water drop on the coating layer in air higher than 75° at ambient air conditions, as measured according to ASTM D7334-08, wherein said coating layer comprises diamond like carbon (DLC) comprising fractions of one or more components selected from the group consisting of silicon (Si), oxygen (O) and fluor (F), and wherein said DLC coating is a fluorinated DLC.