Method of suspender line trajectory design

YU Fan,HUANG Genlu,HAN Zhiyong,NI Hongjian,LI Jing,LI Wei

Table 2 Parameters of drilling operation.

Parameter Sign Value Outer diameter of drill string Od 127 mm Inner diameter of drill string Oi 101 mm Elastic modulus E 2.14×1011 Pa Buoyant weight of drill string fg 240 N/m Friction coefficient μ 0.25 WOB W 100 kN Torque on bit in rotary drilling T 3000 N·m