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分枝孔钻进是当前岩心钻探的一个高技术领域。本文认为合理设计分枝孔轨迹对提高钻探经济效益具有重要意义,并指出正确设计分枝孔轨迹与选用造斜器的种类有着密切关系。着重介绍了主孔和分枝孔在同一平面及在不同平面的3种情况下,如何设计分枝孔轨迹的方法和有关的设计计算公式并附有具体的设计实例。
Branch hole drilling is currently a core area of high-tech drilling. In this paper, it is of great significance to design a branch hole trajectory to improve the economic benefits of drilling. It is pointed out that the correct design of the branch hole trajectory is closely related to the type of whipstock used. This paper mainly introduces how to design the trajectory of branch hole and the related design and calculation formulas with specific design examples with the main hole and branch hole in the same plane and in three different planes.