Fixed cutter completions bit
AssigneeVarel International Ind., L.P.
InventorsJOHNATHAN WALTER HOWARD, MATTHEW CHARLES STROEVER, JEFFERY LEWAYNE JOHNSON, CHARLES DANIEL JOHNSON
Life of this patent
Estimating the term…
Abstract
A completions bit for use in a wellbore includes: a shank having a coupling formed at an upper end thereof; a body mounted to a lower end of the shank; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body; a tangentially oriented leading cutter mounted to a bearing face of the blade adjacent to a leading edge of the blade at an inner portion of the cutting face; and a radially oriented leading cutter mounted to the bearing face of the blade in proximity to the leading edge thereof at an outer portion of the cutting face.
Claims16
A completions bit for use in a wellbore, comprising:
- a shank having a coupling formed at an upper end thereof;
- a body mounted to a lower end of the shank;
- and
- a cutting face forming a lower end of the bit and comprising:
- a blade protruding from the body;
- a tangentially oriented leading cutter mounted to a bearing face of the blade adjacent to a leading edge of the blade at an inner portion of the cutting face;
- and
- a radially oriented leading cutter mounted to the bearing face of the blade in proximity to the leading edge thereof at an outer portion of the cutting face.
A completions bit for use in a wellbore, comprising:
- a shank having a coupling formed at an upper end thereof;
- a body mounted to a lower end of the shank;
- and
- a cutting face forming a lower end of the bit and comprising:
- a blade protruding from the body;
- a first leading cutter mounted to a bearing face of the blade at an inner portion of the cutting face;
- a second leading cutter mounted to the bearing face of the blade at an outer portion of the cutting face;
- and
- a mill pad mounted to the bearing face of the blade, covering the bearing face along the inner and outer portions of the cutting face, and comprising a plurality of mill cutters, each mill cutter having a minimum dimension greater than or equal to ⅛th of an inch.
Dependencies are inferred from the claim text.