Patent ID: 9109417
Filing Date: 2015-08-18
Classification: E21B

Abstract:
1. A drill pipe mountable wellbore cleaning tool apparatus, comprising: a) drill pipe joint having first and second connector end portions and a cylindrically shaped portion in between the connector end portions, said joint being part of a drill string; b) a support sleeve mounted to the drill pipe joint in between the connector end portions; c) wherein the support sleeve abuts but does not invade the integrity of the cylindrical portion; d) centralizers attached to the opposing ends of the support sleeve, each centralizer overlapping a portion of the support sleeve; e) the sleeve carrying one or more debris cleaning tools in between the centralizers that enable debris removal from a wellbore; f) at least one locking clamp attached to the cylindrical portion next to a said centralizer; and g) wherein the locking clamp prevents the support sleeve from moving longitudinally along the drill pipe joint.