Halliburton Energy Services, Inc.

Brandon Jullion

Alben D'Silva

Kennedy John Kirkhope

Gustav Edward Lange

Hartley Randle

John Keith Savage

Steven Graham Bell

Fraser A Wheeler

Everett Philip Hagar

Bryan James Restau

Geoff A Samuel

A hybrid Rotary Steerable System (RSS) includes both exterior steering pads as in a push-the-bit system and, internal shaft pistons as in a point-the-bit system. The steering pads and the shaft pistons may cooperate to permit the RSS to achieve tighter turning radii. The steering pads and the shaft pistons may be independently or collectively controllable by diverting a portion of drilling fluid flowing through the RSS. In some embodiments, the steering pads and shaft pistons may extend in opposite directions to steer the drill bit, and on other embodiments, the steering pads and shaft pistons may extend in the same direction.

Rotary steerable drilling push-the-point-the-bit

Provided is an adjustable split thrust ring and a drilling system including the same. The adjustable split thrust ring, in one embodiment, includes a downhole split ring including two or more separate downhole pieces, the two or more separate downhole pieces fitting together to form a substantially circular downhole shoulder surrounding a substantially circular driveshaft. The adjustable split thrust ring further includes an uphole split ring positionable proximate the downhole split ring and including two or more separate uphole pieces, the two or more separate uphole pieces fitting together to form a substantially circular uphole shoulder surrounding the substantially circular driveshaft. In this embodiment, the substantially circular downhole shoulder and the substantially circular uphole shoulder are movable relative to one another to adjust to fit a groove in a driveshaft that they are configured to sit.

Adjustable split thrust ring

Provided is an adjustable split thrust ring and a drilling system including the same. The adjustable split thrust ring, in one embodiment, includes a downhole split ring including two or more separate downhole pieces, the two or more separate downhole pieces fitting together to form a substantially circular downhole shoulder. The adjustable split thrust ring further includes an uphole split ring positionable proximate the downhole split ring and including two or more separate uphole pieces, the two or more separate uphole pieces fitting together to form a substantially circular uphole shoulder. In this embodiment, the substantially circular downhole shoulder and the substantially circular uphole shoulder are movable relative to one another to adjust to fit a groove in a driveshaft that they are configured to sit.

A bearing assembly for a downhole drilling motor can include a housing having an inner wall, an outer bearing race within the housing, and an inner bearing race. The outer bearing race can include a reduced-diameter portion forming a gap between the outer bearing race and the inner wall of the housing to allow for radial displacement of the outer bearing race relative to the housing. The design combines the functions of a bearing and a compliant feature into a single unit.

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Edmonton, Canada

Brandon Jullion