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1. (WO2018099959) DRILL BITS

Pub. No.:    WO/2018/099959    International Application No.:    PCT/EP2017/080802
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: E21B 10/36
E21B 10/56
Applicants: MINCON INTERNATIONAL LIMITED
Inventors: KOSOVICH, John
Title: DRILL BITS
Abstract:
A multi-indenter drill bit comprising a plurality of indenters arranged on a drilling surface of a bit face, the ratio of the total indenter area to the bit face area being defined by a parameter KPI 1 (expressed as a percentage); the ratio of the average individual indenter area to the bit face area being defined by a parameter KPI 2, (expressed as a percentage) and wherein the relationship between KPI 1 and KPI 2 is defined by an equation.