Mechanical Analysis on BHA for Nearly Horizontal Directional Drilling in Coal Mine
Nearly horizontal directional drilling for gas drainage is promoted by some large coal mining enterprises in their high gas mine in our country.It is an advanced technology at present.The drilling trajectory control is one of the key links of this technology.In order to realize the control of the drilling trajectory accurately, mechanical analysis on bottom hole assembly ( BHA) and solving are required, the purpose of which is to calculate the deviation force and the azimuth force.This paper expounds the characteristics of nearly horizontal directional drilling of coal mine, establishes the mechanics model and the mathematical model of BHA and then gives the method of solution.
trajectory control deviation force azimuth force timoshenko beam three moment equation
Pu Tianyi Li Kesong Li Guang
Chongqing Research Institute of China Coal Technology & Engineering Group,Chongqing,400039,China National Key Laboratory of Gas Disaster Detecting Preventing and Emergency Controlling,Chongqing,400039 ,China
国际会议
the 4th International Symposium on Mine Safety (2012) 第四届国际矿山安全学术研讨会(2012)
阜新
英文
526-530
2012-08-04（万方平台首次上网日期，不代表论文的发表时间）