直井防斜原理综述
OVERVIEW ON CONTROLLING DEVIATION IN STRAIGHT WELL
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摘要: 从以鲁宾斯基钻柱静力屈曲为基础的传统防斜原理出发,探讨了国内外新近发展与应用的高效防科钻具组合、大钻压、定向冲洗井底防斜的方法和原理。这些技术丰富和发展了井斜控制理论,有利于指导钻井实践。Abstract: This paper discuss the principle and method of late developing and application in BHA,high bit weight and directional jetting bottom of hole to controlling deviation,from conventional controlling deviation principle of static buckling of drill stem.