Patent attributes
Variably configurable anti-rotation device (252) in a rotary steerable subterranean drill (20). The rotary steerable subterranean drill (20) includes a housing (46) with which the anti-rotation device (252) is associated. Wellbore engaging portions of the anti-rotation device (252) are positioned at an exterior (52) of the housing (46) and have a plurality of differently configurable, radially deployable drag members (254) that are peripherally spaced about the exterior (52) of the housing (46). A controller is coupled to the plurality of drag members (254) and is configured to instruct different deployed configurations of at least two of the drag members (254) in dependence upon a controller-determined formation force experienced on a toolface of a drill bit (22) of the rotary steerable subterranean drill (20).
