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Ulterra bit drills record "Chat" well

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FORT WORTH, Texas, Aug. 27, 2012 /PRNewswire/ -- A 6.125" U613M PDC bit combined with a TorkBuster performance drilling tool drilled the Mississippi lateral significantly further and faster than any offset drilled in Woods County, Oklahoma. Drilling 3,370' of high-chert, Mississippi formation at 71.7 ft. /hr., the run saved the operator $207,000 compared to the average offset "chat" well.


The "chat" is the upper zone of the Mississippian formation and is composed of extreme levels of chert cemented with limestone and dolomite. The chert exerts heavy damage to PDC bits, resulting in short runs and severe dulls. The roller cone bits, typically employed, have less ROP potential, easily go undergage, and have moving parts which can fail and be left in the hole as junk. The U613M has been adapted to the harsh drilling conditions through Ulterra's innovative design process. This latest advanced design, better distributes loading over the entire cutting structure than previous designs, thus preventing cutter damaging spikes. Additionally, Ulterra's LightSpeed™ cutter development process provides the industry's toughest application-specific cutters. The TorkBuster generates a rapid torsional impact to the drill bit, fracturing the cherty formation and allowing the PDC to effectively shear the formation at higher ROP and without bit damaging vibrations.

Ulterra is a leading provider of premium drill bits and downhole tools for the oil and gas industry. Its strength resides in the experience and wisdom obtained from industry veterans, designing high-quality, high-performance PDC bits for global markets. Its localized focus enables Ulterra to respond quickly to customer's specific applications with customized solutions.

Justin McMillan
Director Bus. Development



SOURCE Ulterra


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