CARROLLTON, Texas--(BUSINESS WIRE)--Varel International, the leading independent manufacturer of drill bits and global supplier to the drilling industry, recently completed a massive 44” steel-toothed ...

A new tapered bearing assembly, developed specifically for roller-cone rock bits, significantly increased bit life for a Middle Eastern operator. This technology can help oil and gas customers avert ...

Based on the experimentally confirmed assumption of the existence of three destruction sectors on the hole bottom during drilling with three-cone bits, we may assert that all our considerations ...

“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 ...

New York, Oct. 05, 2020 (GLOBE NEWSWIRE) -- Reportlinker.com announces the release of the report "Global Downhole Drilling Tools Industry" - https://www.reportlinker ...

Purpose: A drill bit converts surface energy (rotation, axial load, and drilling fluid power) into rock failure at the wellbore face, creating cuttings and deepening the hole. I.3 Energy sources at ...