Oil Country Tubular Goods Coating
Overview
Ferox coatings are an epoxy/novolac thick film coating based on polymer chemistry designed for multiple oil and gas field applications. The coatings are developed by Vulcan Labs for use as an internal tubular coating and are currently being manufactured exclusively by Vulcan Labs. These internal pipe coatings are specifically designed to provide the highest level of wear resistance possible while maintaining high temperature performance and chemical resistance. In addition, we offer outside diameter coatings for specific applications.
All Vulcan Lab’s internal pipe coatings are designed to extend tubing life as well as provide increased flow rates due to the improved hydraulic efficiency of the smooth, coated surface. The Ferox coating with a primer base coat is applied to the tubular to create a corrosion resistant and high temperature performance to form a 100% holiday free internal pipe coating. The coatings are applied using Vulcan Lab’s quality application process. The tubular is first inspected and then media blasted using steel grit, to a NACE No. 1/SA3 white metal finish. The primer is applied next and then heated before applying the Ferox coating to the tubular. The “J” area of the coupling and the beveled face on the pin end are also coated. To complete the process, the tubular is heated once more to fully cure and crosslink the two layers together.
Ferox coatings are applied 7-16 mils thick and are rated to 250-300°F (121-150°C). The internal pipe coating is designed to withstand pressures to the yield strength of the tubular and is primarily intended for use in salt water disposal wells, injections wells (water, C02), gas lift production wells, free flowing wells, ESP production wells and rod pump wells. To perfect the Vulcan Lab’s internal pipe coating properties, a series of test were ran with each coating and the results are provided.