Search International and National Patent Collections

1. (WO2018222608) EARTH-BORING BIT

Pub. No.:    WO/2018/222608    International Application No.:    PCT/US2018/034918
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 30 01:59:59 CEST 2018
IPC: E21B 10/38
E21B 10/42
E21B 10/46
E21B 10/54
E21B 10/60
Applicants: WENDT, Jacob
BOWDEN, Neal
KLEAR DRILLING TECHNOLOGIES LP
Inventors: WENDT, Jacob
BOWDEN, Neal
Title: EARTH-BORING BIT
Abstract:
An earth-boring bit includes a bit body threaded at its upper extent for connection to a drill string and a plurality of blades on the bit body, each blade having a leading edge and a trailing edge. A plurality of cutting elements is arranged on the leading edge of each blade and a junk slot is defined between pairs of adjacent blades. A surface texture may be formed on the surface of the junk slot, the surface texture being selected to alter a flow of drilling fluid through the junk slot. At least one milling element may extend at least partially across the junk slot between the trailing edge and leading edge of adjacent blades, wherein flow of cuttings generated by the cutting elements is impeded until the cuttings are disintegrated to a selected size.