Patent ID: 9528325
Filing Date: 2016-12-27
CPC Classification: E21B

Claim Text:
1. A drill pipe mountable wellbore cleaning tool apparatus, comprising: a) drill pipe joint having first and second connector end portions and a 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 the shaped 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 drill pipe joint next to a said centralizer; and g) wherein the locking clamp prevents the support sleeve from moving longitudinally along the drill pipe joint.