Results 121 to 130 of about 9,104 (217)

An Improved Model to Characterize Drill-String Vibrations in Rotary Drilling Applications

open access: yesFluid Dynamics & Materials Processing, 2022
Yong Wang   +3 more
openaire   +1 more source

Study on Dynamic Characteristics of drill String-drill Bit-rock System

open access: yesShiyou jixie, 2017
Drill bit, drill string and rock system as a whole, has coupled and interacted dynamic characteristics, which is neglected in most of researches. In view of this, considering the coupling of axial and lateral torsion of the lower drilling tool and the ...
Hu Zhiqiang   +3 more
doaj  

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