An expandable downhole tool for use in a drilling assembly positioned within a wellbore includes a tool body having an axial flowbore extending therethrough and a moveable arm. The moveable arm includes a roller structure including cutters and rotatably mounted on the moveable arm. The moveable arm is configured to move outwardly in response t o actuation of the expandable downhole tool.
申请公布号
CA2642416(A1)
申请公布日期
2009.05.01
申请号
CA20082642416
申请日期
2008.10.30
申请人
SMITH INTERNATIONAL, INC.
发明人
NELSON, GAIL R.;RODMAN, DAVID WILLIAM;LAIRD, TOMMY