Drill bit manufacturers have substantially improved polycrystalline diamond (PCD) cutters and drag bit designs since their introduction in 1972. PCD drill bits are now approaching the rolling cone ...

FT. WORTH, Texas--(BUSINESS WIRE)--Varel International Oil and Gas, the world’s largest independent supplier of drill bits for the oil and gas industry, announces the commercial launch of the new ...

CARROLLTON, Texas--(BUSINESS WIRE)--Varel International, the world’s largest independent supplier of drill bits for the oil, gas and mining industries, announces the commercial launch of the new ...

Throughout the history of drilling, “Heavy Metal” (not to be confused with the music genre) has been the preferred cutting element for grinding/crushing/chipping formations on literally the leading ...

“Fishtail” drill bits became obsolete in 1909 when Howard Hughes Sr. patented the dual-cone roller bit. By pulverizing hard rock, the new bit with two rotating cones brought faster and deeper rotary ...

BAKU, Azerbaijan, January 18. Uzbekneftegaz JSC has announced a tender for the supply of roller cone drill bits for drilling exploration, parametric, and production wells in 2023. Documents are ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...