A Calculation Method for WOB Conducting of Directional Well
In the course of drilling for directional well and horizontal well,the friction of drill string affects the WOB conducting directly,the WOB at bottom hole is often lower than the WOB expected,which affects the drilling efficiency seriously.Therefore,analyzing the WOB conducting scientifically and calculating the actual WOB at bottom hole accurately is the key for ensuring the drilling efficiency.The effect of mud on the axial force and the structural characteristics of drill string are considered before analyzing the force of drill string in directional well.Then based on the hook load, the actual WOB at bottom hole can be calculated by establishing the WOB conducting model for directional well,which results in practical significance for analyzing WOB conducting, guiding the drilling construction and improving drilling efficiency.
Directional well Friction WOB conducting Hook load
ZHENG Shuang-jin HUANG Zhi-qiang WU Hong-jian
Yangtze University Laboratory of Key Laboratory of Drilling Engineering,CNPC;College of Petroleum Engineering,Yangtze University,Jingzhou,Hubei
国际会议
湖北荆州
英文
196-199
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）