COMPOSITE BOW CENTRALIZER

摘要

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.

主权项

1. A method of forming a composite centralizer, the method comprising:
forming a plurality of composite bow springs from a fiber and a resin; curing the composite bow springs in a desired shape to form a plurality of cured bow springs; disposing a first portion of a resin-wetted fiber about a cylindrical mandrel to form a plurality of collars; disposing the plurality of cured bow springs onto the mandrel with the bow spring ends in contact with the first portion of resin-wetted fiber; disposing a second portion of the resin-wetted fiber about the cylindrical mandrel and about at least a portion of the first portion of the resin-wetted fiber; and curing the collars to form a composite centralizer.