51313-02208-New Advancements in the Abrasion Resistance of Internal Plastic Coatings

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Product Number: 51313-02208-SG

ISBN: 02208 2013 CP

Author: Robert Lauer

Publication Date: 2013

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For more than 60 years now internal plastic coatings have been used for corrosion protection on tubing casing line pipe and drill pipe. One of the historic concerns with the use on internal plastic coating is the treat of mechanical damage and subsequent corrosion cell generation. Through the earlier years of usage of internal plastic coatings applicators relied on enhanced surface preparation and adhesion to ensure minimal exposure of the steel substrate if damage were to occur. Even with this minimization the presence of corrosion was still a concern for some. Due to this a focus on developing internal coatings that offered higher degrees of abrasion resistance took hold. Through this time several materials have been developed that offer abrasion resistances twenty times greater than what had previously been seen. These abrasion resistant materials are allowing internal coatings to be used in applications that were previously off limits. These applications include: production/injection wells with frequent mechanical intervention rod pumping wells completion string systems and environments containing high amounts of entrained solids. This paper outlines the development of these products including the different chemistries used and their abrasion resistant impact laboratory evaluation of their abrasion resistance and updates on previously presented case histories of applications where internal coatings have historically been excluded.