Optimal design and nonlinear dynamic characteristics of titanium /steel drill pipe composite drill string for ultra-deep drilling [PDF]
Scientific Reports, 2023 Titanium drill pipe have promising application prospects in ultra-deep drilling, but the nonlinear dynamic characteristics of composite drill strings are very complex.
Qiang Liu +9 more
doaj +3 more sources
Stick-Slip Vibration Suppression in Drill String Using Observer-Based LQG Controller. [PDF]
Sensors (Basel), 2022 Hydrocarbon exploration and production activities are guaranteed through various operations including the drilling process, which is realized by using rotary drilling systems. The process involves crushing the rock by rotating the drill bit along a drill
Riane R +4 more
europepmc +2 more sources
Study on dynamic characteristics of drill string in deep-water riserless drilling
Advances in Mechanical Engineering, 2023 The cost and security of ocean drilling are directly related to the efficient exploration and development of ocean resources. The riserless drilling system is usually adopted in the ocean drilling.
Fangfei Huang +4 more
doaj +2 more sources
Modeling and Analysis of Drill String–Casing Collision under the Influence of Inviscid Fluid Forces
Applied Sciences, 2023 The current study aims to study the drill string–casing system operating in an inviscid fluid under imbalanced and rubbing damage types. The Navier–Stokes equations were linearized to establish the hydrodynamic forces surrounding the drill string and ...
Bernard Xavier Tchomeni Kouejou +2 more
doaj +2 more sources
An Analytical–Numerical Model for Determining “Drill String–Wellbore” Frictional Interaction Forces
EnergiesCurrently, drilling of directional oil and gas wells under complex technical-technological and mining-geological conditions requires the use of drill pipes made of various materials.
Michał Bembenek +7 more
doaj +2 more sources
Energies, 2021 The longitudinal vibration of the drill pipe contains considerable energy which can be used to improve the rock-breaking efficiency during drilling. It is very important to the development of drilling speed-up tools to have a comprehensive understanding ...
Yuqiang Xu +2 more
doaj +2 more sources
On “Lump mass torsional vibration model” and helical deformation of drill string
Petroleum, 2021 This paper analyses the physical models in “Kapitaniak M, Hamaneh VV, Chávez JP, Nandakumar K, Wiercigroch M. Unveiling complexity of drill–string vibrations: experiments and modelling. International Journal of Mechanical Sciences 2015; 101–102: 324–327”.
Zifeng Li
doaj +1 more source
Analysis of the Influence of Downhole Drill String Vibration on Wellbore Stability
Machines, 2023 Most studies related to aspects of wellbore stability, such as wellbore breakage, block dropping, and wellbore expansion, revolve around the physicochemical interaction between drilling fluid and surrounding rock, but relevant studies show that drill ...
Yonggang Shan +4 more
semanticscholar +1 more source
The technology improvement and development of the new design-engineering principles of pilot bore directional drilling [PDF]
, 2016 This paper addresses the effectiveness of impact energy use in pilot bore directional drilling at pipe driving. We establish and develop new design-engineering principles for this method.
Saruev, Lev Alekseevich +2 more
core +2 more sources
Nonlinear dynamics, 2023 During deepwater riserless drilling operations, the vibration behavior of drill string may have a significant impact on wellbore pressure, which leads to serious drilling accidents such as well leakage and collapse in shallow risk areas.
Yili Chen, Jun Liu, M. Cai
semanticscholar +1 more source