Patent ID: 6148918
Filing Date: 2000-11-21
Classification: E21B

Abstract:
A well bore cleaning tool adapted for close tolerance well bores comprising:a plurality of cylindrical collars adapted for detachable securing on a casing pipe in a vertically spaced apart relationship to each other, each of said collars being provided with a cutout;a plurality of bent sleeves with open ends, each sleeve being fitted within a corresponding cutout in a collar, each sleeve forming an obtuse-angle channel, each sleeve being fixedly secured to a corresponding collar by a strip juxtaposed over an exterior surface of said sleeve, opposing ends of said strip extending beyond said cutout for attachment to said corresponding collar in a generally coplanar relationship to an exterior surface of said collar; andan elongated cable threaded through said sleeves of said collars to extend along and in close proximity to said casing pipe and frictionally contact an interior wall of the well bore to thereby effect cleaning of the well bore.