Case of Trajectory Control with PDM in Loose Sandstone Formation and Technical Measures
C1 Well is one of the horizontal wells,during the drilling process of the third opening with a 215.9 mm borehole,the trajectory was about to deviate from the designed trajectory.By changing the drilling tool assembly and adjusting the drilling parameters,the trajectory was successfully controlled within the designed range,ensuring the oil layer encounter rate.This paper provides a basis for selecting drilling tool assemblies for similar horizontal wells in this oilfield,and serves as a reference for other regions to use motorized drilling tools to control trajectory in loose sandstone formations.
horizontal wellloose sandstonePDMtrajectory control