Results 91 to 100 of about 875 (185)

Failure mechanism analysis of the threaded connections of the stabilizer in bottom hole assemblies equipped with a positive displacement motor and a rotary steerable system

Advances in Mechanical Engineering
Drilling practices in Tarim Oilfield of China have shown that the combined use of a Positive Displacement Motor (PDM) and a Power Drive System can significantly enhance wellbore trajectory control and drilling efficiency, but it is likely to cause drill ...
Qinfeng Di, Heyuan Yang, Dakun Luo, Liang Wen, Tiansheng Deng, Wenchang Wang, He Zhang   +6 more
doaj   +1 more source

A Calculation Model for Hydraulic Cutting Torque in Offshore Oil Fields Considering the Dynamics of Drill String

Shiyou jixie
Hydromechanical cutters are commonly used in offshore oilfields to cut previous sand-control strings and casing during wellbore preparation prior to the drilling of adjustment wells.
Hu Jinyang, Xu Gang, Jia Lixin, Zhang Shuai, Zhou Jianhui, Zhang Hui   +5 more
doaj  

Research and Application of Optimal Placement of Hydraulic Oscillator

Shiyou jixie, 2016
Sliding drilling in complex well often encounters serious weight stacking,resulting in inadequate WOB and low ROP.Hydraulic oscillator introduces an axial oscillating motion on the drilling string by axial vibration,so to transfer the static friction ...
Zhang Kang, Feng Qiang, Wang Jianlong, Zhang Ruguang, Yu Zhiqiang, Xia Heming   +5 more
doaj  

Analysis of drilling vibration characteristics of anchoring system in coal mine. [PDF]

Sci Rep, 2023
Xie M, Li Y, Zhang H, Yang Z, Ren Z, Nie R.   +5 more
europepmc   +1 more source

Analysis of the effect of stabilizer configuration on reamer vibration suppression. [PDF]

Sci Prog
Yu F, Kuang Y, Li B.
europepmc   +1 more source

Stick-Slip Vibration Suppression in Drill String Using Observer-Based LQG Controller. [PDF]

Sensors (Basel), 2022
Riane R, Doghmane MZ, Kidouche M, Tee KF, Djezzar S.   +4 more
europepmc   +1 more source

A Temperature Compensation Method for the Bit Parameter Recorder in High-Temperature Deep Wells Based on Thermo-Mechanical Coupling. [PDF]

Sensors (Basel)
Zhang H, Yi Z, Li Z, Li Y, Zhu Y.
europepmc   +1 more source

MODELING THE DYNAMICS OF THE CIRCULATION SUB OF THE DRILL STRING

PNIPU Bulletin.The mechanical engineering, materials science, 2019
Alexey Kobityansky, Alexander Mulkov, Vladimir Beloborodov   +2 more
openaire   +1 more source

An equivalent circulating density prediction model for extended-reach horizontal wells considering drill strings sinusoidal buckling. [PDF]

Sci Rep
Huang Z, Li Y, Jiang K, Ge J, Gu Y, Hu Z.   +5 more
europepmc   +1 more source

Investigation of the influence of cuttings transport on drill string dynamics

From industrial applications, it is known that drill-string vibrations can cause severe damage to underground equipment. Since especially lateral drill-string vibrations are difficult to avoid, it is important to study the factors influencing their damping.
openaire   +2 more sources