ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,836, issued on Feb. 11, was assigned to Halliburton Energy Services Inc. (Houston).
"Polycrystalline diamond compact cutter with plow feature" was invented by William B. Atkins (Conroe, Texas), John Harman (Denver) and Curtis Lanning (Conroe, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting element includes a substrate configured to couple to a pocket formed in a blade of a downhole drill bit and a polycrystalline diamond portion secured to the substrate. The polycrystalline diamond portion includes a cutting face, a radial sidewall, and a cutting edge formed at a transition from the radial sidewall to the axial the cutting face. The c...