Simulation and Experiment of Well Trajectory Control Based on Cylindrical Spiral Theory
The rotary steering drilling technology is widely used in petroleum exploitation for its advantage of high drilling speed,small drilling friction and smooth borehole.However,great alternating stress of the spindle and severe wear of bearings can easily occur in actual application due to the drill itself inherent defects and the poor drilling environment.Moreover,the well trajectory control mode is also an important factor affecting the quality of borehole in the practical situation.In order to improve above problems,a new type of static point-the-bit offset steering mechanism is introduced first.Then,the well trajectory steering control algorithm based on the cylindrical spiral method is established,together with the theoretical calculation of a three dimensional multi-objective well trajectory.At last,virtual simulation based on the platform of SolidWorks and ADAMS and experiments on the steering performance of the prototype are performed.The results show that the algorithm produces a fine control effect.Both the simulation results and experimental measurements match with theoretical values well.The results verify the feasibility of realizing steering control for the offset mechanism and provide a theoretical reference for further study of the practical trajectories control.
Offset mechanism Steering control Cylindrical spiral ADAMS
Shuai Li Wentie Niu Hongtao Li Shengli Fu
School of Mechanical Engineering,Tianjin University,Tianjin 300072,China CNPC Bohai Drilling Engineering Company Limited,Tianjin,300450,China
国际会议
天津
英文
1-8
2014-07-06（万方平台首次上网日期，不代表论文的发表时间）