摘要
本文将钻柱真实轴力分解成两部分,一部分为压力,它与作用于钻柱截面同等深度的液柱压力相等;另一部分为有效轴力,它等于钻柱的有效弯曲轴力。求钻柱真实轴力时,可先求有效轴力,再换算成真实轴力。本文还用有效轴力和真实轴力分别定义了中性截面和中和点。
Actual axial forces are devided into two parts in this paper. One part is the pressure which equals liquid column pressure applied on drill string section at the same depth, the other part is the effective axial force which equals effective bending axial force of drill string. For solving the actual axial forces of drill string, effective axial force is solved firstly and then actual axial force is converted. This paper defines neutral section and neutral point respectively with effective axial force and actual axial force.
出处
《中国海上油气（工程）》
1997年第3期32-35,共4页
China Offshore Oil and Gas
关键词
浮力
钻柱
轴力
石油
钻井设计
buoyant force, drill string, effective axial force, actual axial force, neutral section, neutral point
