Roller cone bits

These roller cone bits are designed for drilling upper well sections, or surface hole drilling. Without sealing elements in the bearing, it is possible to maximize the journal and achieve full circulation in the bearing which is highly important for torque reduction, rapid cooling and bearing life extension. Grand bits can be also used for forced drilling with different types of turbines. They feature low cost and acceptable resource while drilling with protective casing and conductor and it helps a customer to save money when drilling a small number of wells.

These roller cone bits are designed for multiple drilling of upper well sections. Thanks to sealed roller bearing these bits feature enhanced resources and can be safely stored for a long time between work intervals without the danger of jamming and corrosion damage to the support elements. GrandPro bits are cost effective when drilling several wells or reduce the number of trips when drilling long intervals.

These roller cone bits are designed for the most severe drilling conditions in the upper sections of wells, where the integrity of the bit and its ability to withstand extreme loads from the drill string are of paramount importance. The use of a sealed premium-class journal bearing and innovative solutions for the sealing assembly and protection of the bit bearing ensure a high bearing life and the optimum technical and economic bit performance.

These roller cone bits are suitable for a wide range of applications. The design of the sealed journal bearing allows to use them both in combination with a rotor drive at high loads, and with the a hydraulic downhole motor at high rotation speeds. Application of various protection designs for bit pads and a large number of additional options helps customizing Motor bits for specific conditions and achieving high technical and economic bit performance.

These premium sealed bearing roller cone bits are specially designed for high load and RPM drilling with a downhole motor. The design of bits and the use of special features provide excellent protection of the bit body while drilling directional and horizontal wells. The use of a premium sealed journal bearing and innovative design solutions for the sealing assembly and protection of the bit bearing ensure a long bearing life and the optimum technical and economic bit performance.

These small-sized roller cone bits with sealed journal bearings are ideal for horizontal drilling, sidetracking, re-entry jobs and drilling final well sections. The bit design and the use of reinforced shirttail provide excellent protection for the bit body while drilling horizontal wells. Sealed journal bearing application ensures a long bearing life and the optimum technical and economic bit performance.

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