本书叙述了在不便使用造斜器的复杂地层钻进中,预测钻孔自然弯曲的方法。计算是报据作为非均质介质弹性系统的空间钻头移动和钻杆组合理论进行的。探讨了在井筒大角度倾斜情况下钻孔发生自然弯曲时,预测钻孔轨迹的方法。目录如下:第1章,利用自然弯曲规律 This book describes a method of predicting the natural curvature of a borehole in a complex formation that is inconvenient to use whipstocks. Calculations are based on the spatial drill movement and the drill-pipe combination theory as an inhomogeneous medium-elastic system. The method of predicting borehole trajectory in the case of natural bending of borehole under the condition of large angle inclination of wellbore is discussed. The directory is as follows: Chapter 1, using the law of natural bending