Expandible bit

Details Expandible bit Expandible bit

E - Fixed Constructions

21

B

E21B 10/26 (2006.01) E21B 10/32 (2006.01) E21B 10/66 (2006.01)

Patent

CA 2401917

A bit has been invented that is expandable from a collapsed position, useful for tripping, to an radially expanded position for use. The bit is useful to form a borehole through an earthen formation. In one embodiment, the bit can be used alone, without a separate under reamer, to expand a well bore below a casing string, either during casing drilling or when extending a well bore below an installed casing string. The bit cutter face includes a center cutter face on a mandrel and an outer cutter face mounted on an expandable section of a housing disposed about the mandrel. The outer cutter face can be expanded by axial movement of the mandrel within the housing.

Affiliated with

Also associated with

Rating

Expandible bit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expandible bit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expandible bit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1558439