发明名称 STREAMLINED POCKET DESIGN FOR PDC DRILL BITS
摘要 A cutter pocket, a downhole tool formed with at least one cutter pocket, and a method for coupling a cutter to the cutter pocket is described herein. The cutter pocket is formed within at least one blade of the downhole tool and includes a pocket back fabricated from a first material, a first pocket side extending from one end of the pocket back to a leading edge of the downhole tool, and a second pocket side extending from an opposing end of the pocket back to the leading edge. The pocket back and the pocket sides define a cavity. A cutter is positioned and coupled at least partially within the cavity. The height of an upper surface of the first material of the pocket back ranges between thirty percent to sixty-five percent of the cutter girth.
申请公布号 EP2938805(A4) 申请公布日期 2016.09.07
申请号 EP20130868072 申请日期 2013.12.11
申请人 VAREL INTERNATIONAL, IND., L.P. 发明人 THIGPEN, GARY, M.
分类号 E21B10/633;E21B10/54;E21B10/62 主分类号 E21B10/633
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