论文详情
钻杆减阻工具减阻效果计算与分析
海洋石油
2008年 28卷 第2期
阅读：140
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Title
Effect calculation and analysis of rod drag and torque reducing tools
Authors
Zhu Xiaohua
Zhu Hujun
Si Nianting
Zuo kai
Tong Hua
单位
西南石油大学机电工程学院, 四川成都 610500;
中海石油基地集团监督监理公司, 天津 300450;
中海石油天津分公司钻井部, 天津 300450
Organization
Electromechanical Engineering College of SWPU, Chengdu 610500;
CNOOC Oil Base Group Ltd. Supervision & Technology Co., Tianjin 300450;
CNOOC Drilling Department, Tianjin 300450
摘要
通过全井钻柱系统动力学模型和计算软件,以某已实施水平井为例,计算了井口至不同井段的动态摩阻扭矩,根据计算结果初步设计了多种减阻工具安放方案,完成了不同安放方案动态摩阻扭矩的计算与分析,通过分析发现动力学计算方法能较好地反应摩阻扭矩的波动情况;具体井况中减阻工具的安放数量存在一个临界值,并非越多越好;安放位置必须经过对比计算确定,合理的安放位置不仅可以有效降低摩阻,而且可以减少安放工具数量。文中的钻柱系统动力学特性分析技术可以为减阻工具选型及安放位置优化提供有力的支撑。
Abstract
Based on drill string dynamics theory and system simulation software, the horizontal well's dynamic drag and torque were studied. According to the calculation result, the paper designed three optional design cases and finished its calculation and analysis. Some valuable reorganizations was gained such as this dynamics method can reflect the fluctuation of drag and torque, the tool number has a marginal value and is not the more the better, and proper location must be obtained through the scientific computation. The drill string dynamics software can provide support for choosing the location of friction reducer.
关键词：
减阻工具;
摩阻扭矩;
定量计算;
安放位置;
钻柱动力学;
Keywords:
drag and torque reducing tools;
drag and torque;
quantitative calculation;
proper location;
drill string dynamics;
基金项目
国家博士后科学基金资助项目(20060391034);西南石油大学自然科学基金项目(2007XJZ093)联合资助
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