井斜控制理论及防斜钻井技术综述

Summarization on deviation control theory and anti-deflection drilling technology

在钻井过程中，井斜给钻井工程带来一系列的危害，并造成巨大损失。早在５０ 年代，国外就研究了光钻铤在钻压作用下的弯曲问题，导出了有关计算模式；６０ 年代提出了双稳定器防斜钻具的理论，为满眼钻具的发展提供了理论基础；７０ 年代提出了用小势能法求解下部钻具的受力和变形。国内在６０ 年代以前，基本上是引用国外的理论和方法，进入７０ 年代逐步开展了防斜理论的研究。首先是唐俊才等人，指出了Ｈｏｃｈ 的公式推导中的错误，并给出修正公式；后来白家祉教授提出了用纵横弯曲连续梁理论求解下部钻柱的受力和变形；杨勋尧在研究钟摆钻具、满眼钻具基础上，得出简化的公式和图表，在川东指导钻井实践取得好效果。文中系统介绍了井斜控制技术，对井斜控制理论研究、防斜钻井技术研究及防斜钻井实践有重要参考、指导意义。

During drilling,hole deviation has a series of damage to drilling engineering.In overseas,In 50′s,the bending question of drill collar was studied under the action of WOB,and related computing method was induced.In 60′s,the theory of anti-deflection drilling tool with double stabilizer was proposed.It formed theoretical basis for the development of packed hole drilling tool.In 70′s,the force and deformation of bottom drilling tool was presented by using small potential energy method.In China,before 60′s,anti-deflection theory and method were quoted from abroad. In 70′s,a series of research of anti-deflection theory were done.The paper introduces systematically deviation control technique which has important reference and directive function to study deviation control theory,anti-deflection drilling technology and anti-deflection drilling practice.