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Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals
Roller cone drill bits with enhanced drilling stability and extended life of associated bearings and seals
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机译:圆锥滚子钻头,具有更高的钻孔稳定性,并可以延长相关轴承和密封件的使用寿命
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摘要
Roller cone drill bits may be formed with cutting elements and cutting structures having cutting element profile angles selected to minimize cone wobble and improve life of associated bearings and seals. Normal force axes of the cutting elements may intersect with each other as a force center. Crest points of the cutting elements may be disposed on one or more circles extending from the associated force center.
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