论文详情

用有限差分法分析底部钻具组合的静力

石油钻采工艺

1995年 17卷第1期

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Title

ANALYSESING STATIC FORCE ACTING ON BHA USING FINITE DIFFERENTIAL METHOD

作者

徐永福高德利徐秉业

Authors

Xu Yongfu Gao Deli Xu Bingye

单位

华北石油职工大学石油大学, 北京清华大学

摘要

本文采用有限差分法对底部钻具组合三维静力问题进行了分析研究。通过中心差分,建立有关的差分方程,并编写了相应的计算机处理程序。在此基础上,通过算例分析,阐明了钻压、井斜角、井眼曲率及稳定器间隙对钻头侧向力的影响规律。

Abstract

3D static behavior of BHA has been analyzed with finite difference method in this paper. The differential equation of static force acting on BHA and the computer program to deal with subject mentioned above have been developed. The factors,such as WOB,deviation angle,hole curvature and clearance between stabilizer and wellbore,effecting bit side force have been discussed.

关键词：

定向钻井; 钻具组合; 钻柱力学; 有限差分法; 计算机应用;

Keywords:

directional drilling; bottom hole assembly; drill stem mechanics; finite difference method; computer application;

基金项目

DOI

10.3969/j.issn.1000-7393.1995.01.003