论文详情

水平井钻柱摩擦力的计算

石油钻采工艺

1995年 17卷第3期

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Title

CALCULATION OF FRICTION FORCE OF DRILLING STRINGS IN HORIZONTAL WELL

作者

赵洪激

Authors

Zhao Hongji

单位

大庆石油学院机械系

摘要

本文介绍了不同工况下水平井钻柱摩擦力的计算方法。计算结果表明,起钻和井底动力钻具钻进两种工况,钻柱与井壁间有较大的摩擦力。并指出降低摩擦力的有效措施是将造斜率较大的井段放在井眼下部,采用油基钻井液及轻质材料钻杆。

Abstract

This paper introdues a calculation method of friction force acted on drill stem at different conditions in horizontal well. Calculation results show that greater friction force exist between drill stem and wall of bore in tripping out and drilling using PDM (positive displacement motor) working conditions. The effect measurement to reduce friction force is arranging build section with greater build up rate to lower bottom section of well and using oil base mud and flexible drill stem.

关键词：

水平井; 摩擦力; 计算方法; 钻柱力学; 方程;

Keywords:

horizontal well; frictional force; calculation method; drill stem mechanics; equation;

基金项目

DOI

10.3969/j.issn.1000-7393.1995.03.002