Wellbore cleaning tool and method

Details Wellbore cleaning tool and method Wellbore cleaning tool and method

1999-03-03

2000-11-21

Dang, Hoang

Wells

Processes

Cleaning or unloading well

166173, 1662421, E21B 3702

Patent

active

061489182

ABSTRACT:
A well bore cleaning tool adapted for close tolerance well bores is provided comprising a plurality of cylindrical collars attached to an elongated cable by a plurality of corresponding bent sleeves. The collars are adapted for detachable securing on a casing pipe in a vertically spaced apart relationship to each other. Each sleeve is fixedly secured within a cutout of a corresponding collar by a strip juxtaposed over an exterior surface of the sleeve, opposing ends of the strip extending beyond the cutout for attachment to the corresponding collar, such that a minimal portion of the sleeve extends beyond an outside diameter of the collar. The elongated cable is threaded through the sleeves of the collars such that the cable extends along and in close proximity to the casing pipe, to thereby facilitate cleaning of a well bore in close tolerance conditions.

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