摘要
将水平井眼内的钻柱简化为两端固定的直梁，把求精确解和近似解的方法结合起来，求解钻柱的临界载荷、固定端内力和钻柱与井壁之间的接触力．利用编制的计算程序进行了实例计算，并将计算结果与通用的Ｄａｎｓｏｎ公式的计算结果进行了对比，由于采用不同的力学模型，两者的计算结果也不相同．
The drill stems is simiplified to a straight beam with fixed terminals. With the combimation of the mothods of accurate solution and approximate solution, the formulae of the critical load. the internal force of the fixed terminals and the contact force between the stem and the wall in horizontal hole are derived. The calculations of an example is performed by computer with the corresponding programme. The results are compared with that of Dawsons formula.
出处
《石油大学学报（自然科学版）》
CSCD
1996年第1期62-66,共5页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
国家"八五"水平井科技攻关项目
关键词
水平井
钻柱稳定
临界压力
载荷
Horizontal well
Drill stem stabilization
Critical pressure
Load
