Results 211 to 220 of about 2,421 (246)

Experimental and numerical study of drill string dynamics in gas drilling of horizontal wells

Journal of Natural Gas Science and Engineering, 2015
Zhanghua Lian, Tiejun Lin
exaly  

(drill) collar string

2014
openaire   +1 more source

Nonlinear dynamic modeling of drill string in horizontal well - A geometrically exact approach

Journal of Petroleum Science and Engineering, 2019
Wenwu Yang
exaly  

Experimental studies of forward and backward whirls of drill-string

Mechanical Systems and Signal Processing, 2018
Marian Wiercigroch, Joseph Páez Chavez, Vahid Vaziri   +2 more
exaly  

A nonlinear dynamic model for characterizing downhole motions of drill-string in a deviated well

Journal of Natural Gas Science and Engineering, 2017
Yongsheng Liu
exaly  

Dynamics of a distributed drill string system: Characteristic parameters and stability maps

Journal of Sound and Vibration, 2018
Ulf Jakob Flø Aarsnes, Nathan Van De Wouw   +1 more
exaly  

The visualization of rub-impact characteristics of drill string on casing

Journal of Petroleum Science and Engineering, 2019
Qinfeng Di, Feifei Hu
exaly  

Vibration characteristics analysis and experimental study of horizontal drill string with wellbore random friction force

Archive of Applied Mechanics, 2017
Yinglin Yang, Lin Yang, Jialin Tian
exaly  

Drilling system with drill string valves

2012
DOLMAN LEE F, JEFFRYES BENJAMIN P, JOHNSON ASHLEY B, CLARK BRIAN, MCCULLAGH JOHN A   +4 more
openaire   +1 more source

Axial and torsional self-excited vibrations of a distributed drill-string

Journal of Sound and Vibration, 2019
Ulf Jakob Flø Aarsnes, Nathan Van De Wouw   +1 more
exaly