Study on ground monitoring system of rotary steering drilling

A visualization subsystem of ground monitor and well trajectory,the direction center of the modulate rotary steering system(MRSS),has been developed to show the well course and its related drilling parameters by using figures and data.It is easier for on-site engineers to master and analyze the location of drilling bit and the conditions that the downhole steeling tool controls the trajectory.It can also be used to monitor the downhole steeling tool and control the trajectory to approach the target and hit it.This paper introduces how the visualization subsystem is designed as a whole,making the depiction,variance analysis,and amendment design of the trajectory of the designed wellbore and the drilled wellbore,figuring out the controlled parameters of MRSS and their corresponding sub-control instructions.It as well researches how the control instruction is transmitted to the downhole steeling tool and shows the optimal instruction coding scheme.All the functions of the system are integrated in an incorporated 3D visualization software system of ground control and well course,which is an innovation in drilling directional well based on informatization and intelligent technology.