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.
关键词
水平井/疏松砂岩/马达钻具/轨迹控制
Key words
horizontal well/loose sandstone/PDM/trajectory control
维普
万方数据