Results 21 to 30 of about 425 (156)

Mathematical Modeling and Analysis of Drill String Longitudinal Vibration with Lateral Inertia Effect

Shock and Vibration, 2016
Comparative analysis whether considering the lateral inertia or not, aiming at the longitudinal vibration of the drill string in drilling progress, is proposed.
Jialin Tian, Chunming Wu, Lin Yang, Zhi Yang, Gang Liu, Changfu Yuan   +5 more
doaj   +1 more source

Research on Mechanism of Stick-Slip Vibration Induced by Friction between Drill String and Borehole Wall in Horizontal Well

Shiyou jixie, 2021
The stick-slip vibration of the horizontal well drill string system seriously threatens the safety of downhole drill strings and tools, reduces the drilling efficiency of the horizontal section, making the drill bit fail prematurely.
Zhu Jieran, Zou Deyong, Li Guangquan, Yang Ningning, Yang Quanjin, Lin Wei   +5 more
doaj  

System for measurement and control of drill string vibration

Journal of Physics: Conference Series, 2020
Abstract The article discusses issues of ensuring effective and reliable measurement and control of drill string vibration. A system for active measurement and control of drill string vibration is presented. The system combines both wellhead equipment elements and downhole equipment. At that, there is a specially designed hydromechanical
K A Bashmur, E A Petrovsky, V V Bogachev, V V Kukartsev, V S Tynchenko   +4 more
openaire   +3 more sources

Analysis of Drill String Whirling Characteristics Based on Near-Bit Measurement Data

Shiyou jixie
The displacement signal of drill string vibration is difficult to be obtained in the actual drilling process. To further understand the vibration characteristics of drill string when whirling motion occurs in wellbore during drilling process， first， the ...
Zhang Tao, Yang Zhenpeng, Li Jun, Wang Miaorui, Wang Mengfan, Guo Zixian   +5 more
doaj   +3 more sources

Suppression of Stick-Slip Vibration of Drill String by Fractional-Order PID Control

Shiyou jixie, 2020
Stick-slip vibration of drill string is one of the important reasons leading to accelerated wear and premature damage of drilling equipment, reduced drilling safety and reduced drilling efficiency.
Zhang Qizhi, Xu Shuai
doaj  

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, Desejo Filipeson Sozinando, Alfayo Anyika Alugongo   +2 more
doaj   +1 more source

Random Fatigue Analysis of Drill-Strings in Frequency Domain

MATEC Web of Conferences, 2017
Predicting fatigue damage induced by vibrations is of benefit to oil and gas industry. In this paper a spectral method is developed to estimate the damage of vibration, including both deterministic and random vibration, on the fatigue life of ...
Zheng JiaHao, Yang Jianming, Yang Ping
doaj   +1 more source

Measurement and Analysis of Downhole Drill String Vibration Signal

Applied Sciences, 2021
Downhole drill string vibration data can provide an effective reference for research drill string vibration during drilling. In this paper, the research group used a storage-type downhole vibration measurement equipment equipped with an orthogonal, three-
Yafeng Li, Jin Wang, Yonggang Shan, Chong Wang, Yuanbiao Hu   +4 more
doaj   +1 more source

Drill string dynamic characteristics simulation for the ultra-deep well drilling on the south margins of Junggar Basin

Petroleum, 2023
Improper drilling parameters may cause severe vibration of drill string which leads to reduce the rate of penetration and drilling tool premature failure accidents in the drilling process of ultra-deep well.
Yuan Li, Jianggang Shi, Minghu Nie, Chi Peng, Yingjie Wang   +4 more
doaj   +1 more source

Determination of the characteristics of drill string vibrations during the drilling process

Technology audit and production reserves
The object of research is vibration processes of a certain origin in the drill string with typical design deviations depending on the mode parameters of drilling. A drill string is an oscillating system with an infinite number of degrees of freedom of a multifactor system.
Oleksandr Titlov, Viktor Svitlytskyi, Sergii Iagodovskyi   +2 more
openaire   +3 more sources