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大位移水平井是现代采钻工艺过程成熟的重要表现,其技术难度相对较高,对经验的轨迹控制要求较高,优先钻具组合,防粘防卡是关键.就定向井特殊工艺来说其主要难点在于大位移水平的井斜和方位的控制及有效预测。
Large displacement horizontal well is an important performance of modern mining process, and its technical difficulty is relatively high, which requires high control of the trajectory of experience. The priority drill assembly and anti-sticking and anti-jamming are the key. The main difficulty lies in the control and effective prediction of well inclination and azimuth at the level of large displacement.