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Navi-Drill™ Ultra™ Series

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Navi-Drill™ Ultra™ Series motors from Baker Hughes have rugged, modular, and configurable power sections that deliver superior performance and high-quality holes. Motors stay in hole longer for one-run, casing-to-casing performance and durability to outlast the bit. The internally designed power sections improve efficiency, increasing horsepower and torque at the bit. The drive train delivers higher torque to the bit in long drilling intervals and demanding conditions. Stronger connections and high-grade materials withstand dynamic applications, increasing reliability in straight and directional wells.

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Navi-Drill Ultra HP and Ultra XL-HP motors use high-performance elastomers for additional power output without sacrificing steerability. The elastomers are designed for higher hardness and lower coefficient of thermal expansion to deliver 50% more torque and power downhole for difficult mud systems. Motors enhance this performance in harsh drilling environments further with high-endurance polycrystalline diamond compact (PDC) bits.

he recently launched Ultra Curve™ drilling motor provides the ability to drill high build curves while delivering precise directional drilling control to improve well productivity and efficiency while drilling shale wells. The motor features reduced bit-to-bend length and provides improved tool face control to complete the vertical, curve, and lateral sections in one run.

Our Ultra XL motors have the strongest power of the Ultra Series and deliver high torque at moderate rotational speed. They drill through hard rock formations using PDC bits, increasing rates of penetration (ROP) in straight-hole and tangent sections and building sections of extended-reach and horizontal wells.

Another new motor in the Ultra series is the Ultra XL45™ motor, which is designed to drill long, challenging, vertical sections with precise directional control. The motor’s high-torque capability minimizes stick/slip to boost performance and bit life, and with the longest power section in the industry, it provides unmatched power output and reduces drilling time.

Features and Benefits
• Titanium flex shaft improves reliability
• Optimized connections increase motor reliability
• Improves drilling performance by preventing downhole back-off in harsh drilling environments
• Adjustable kickoff (AKO) sub
• Improves steering to optimize wellbore placement
• Increases flexibility in meeting directional plan by adjusting deflection angle on the surface compared to universal joint
• Increases mean time between failures
• Reduces nonproductive time (NPT), including twist-off and drive-train failures downhole
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