Scott, D. E., "Development of Roller cone Bits with Active PDC Shear Cutting Elements Improves Gauge-Holding Ability," SPE/IADC Drilling Conference, Feb. 23-25, 1993, Amsterdam.

Roller-cone bits were pulled out of hole at a maximum of 1.3 million revolutions (MRevs) and an average of 0.91 Mrevs. The tapered-bearing bit extended the maximum to more than 1.7 MRevs.

The bit, which weighs in at more than 6,000 pounds and is more than 22 percent larger in diameter than any previous roller cone bit, was requested specifically by Saudi Aramco, an integrated ...

Halliburton Energy Services announced the global commercialization of its Energy Balanced™ Series of roller cone bits, which centers on three patented technologies: dynamic balancing, cutter ...

Roller cone bits for sticky shale drilling. Contacts Varel International Brandi Williamson, +1-281-670-2413 Marketing Specialist [email protected] ...

Headquartered in Carrollton, Texas, Varel produces polycrystalline diamond compact and roller cone bits for the oil and gas drill bit market, ...

The IPO had previously rejected a series of patent applications from Halliburton, describing methods of designing a roller cone drill bit using various computer simulations.

The Holy Roller is the only commercial cone-filling machine on the market engineered to accommodate whatever grind size the operator chooses to use, including the 3mm grind, ...

“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 ...