Downhole tool having an extendable component with a pivoting...

Details Downhole tool having an extendable component with a pivoting... Downhole tool having an extendable component with a pivoting...

E - Fixed Constructions

21

B

E21B 23/00 (2006.01) E21B 49/08 (2006.01)

Patent

CA 2635384

An extendable component for use in a downhole tool for traversing subsurface formations includes a drive element that defines an axis and has a distal end, and an abutment that is spaced radially from a distal end of the drive element. A driven element defines a driven element axis, is flexibly coupled to the drive element, and includes a proximal end disposed adjacent to the drive element and a distal end. A tilt arm is coupled to the driven element, is disposed at an angle with respect to the driven element axis, and is configured to engage the abutment. The driven element is moveable between a normal position and a tilted position. A contact head is coupled to the driven element distal end and is adapted to engage the wellbore wall.

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