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 ...
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 ...
“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 ...
The first two parts of this series showed that roller cone bit design analysis can predict cone behavior when heel teeth have equal pitch and how bit kinematics are modeled differently when the heel ...
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