Abstract: A centralizer comprises a first collar, a second collar, a plurality of bow springs coupling the first collar to the second collar, and a plurality of particulates disposed on an outer surface of at least one bow spring. One or more of the first collar, the second collar, and the bow springs comprises a composite material. In some embodiments, the centralizer comprises a third collar, wherein the plurality of bow springs comprise a first portion of bow springs and a second portion of bow springs, and wherein the first portion of the bow springs couple the first collar to the third collar and the second portion of the bow springs couple the second collar to the third collar.

Abstract: A method of providing at least one projection on a tubular body. The tubular body may be one required by the oil and gas industry for use in recovery of and transporting of crude oil or gas, namely oil-country-tubular goods. The projection has a predetermined form such as a blade, ribbing, or the like stand-off projection. The method provides materials capable of being molded, applying a mold to a tubular body, and molding the material using the mold onto the tubular body.