Drill string’s axial force transfer law in slide directional drilling in underground coal mine
Baolong Xu, Songyong Liu, Hongsheng Li
Topics & Concepts
Drill stringDrillingDrillBoreholeBody orificeMechanicsDirectional drillingCurvatureGeologyRADIUSRadius of curvatureDrill bitGeotechnical engineeringEngineeringMechanical engineeringGeometryPhysicsMathematicsComputer scienceMean curvatureMean curvature flowComputer securityTunneling and Rock MechanicsDrilling and Well EngineeringRock Mechanics and Modeling