Results 91 to 100 of about 568,250 (204)

Western String Chamber Orchestra, April 9, 1997

, 2016
Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, April 9, 1997, 8:00 p.m., the 502nd concert of the School of Music's 1996-1997 season.Western String Chamber Orchestra, Bruce J. Uchimura,
Western String Chamber Orchestra
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Western String Chamber Orchestra, November 14, 1996

, 2016
Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, November 14, 1996, 8:00 p.m., the 137th concert of the School of Music's 1996-1997 season.Western String Chamber Orchestra, Bruce J ...
Western String Chamber Orchestra
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A New Analytical Model on Lateral Vibration and Impact of Drill String - Choice of Safe and Fast Drilling

, 2010
The severe lateral vibration and impact of drill string will not only cause the damage of drill string but also have bad effects on the quality of directional drilling operation. It is difficult to control lateral vibration amplitude and impact intensity
Ying Cao Zhou, Qing Zhao, Wei Liu
core   +1 more source

Natural Frequency Analysis of a Stepped Drill String in Vertical Oil Wells Subjected to Coupled Axial–Torsional–Lateral Vibrations

Energies
Drilling oil and gas wells is a complex process that requires a combination of several parameters to dig into the ground. Inappropriate drilling parameter settings and reaction forces can lead to unwanted vibrations, which can negatively impact the drill
Mohamed Zinelabidine Doghmane
doaj   +1 more source

Fabrication of Experimental Setup for Investigation of Drill String Fatigue Failure

, 2017
Drill string and downhole tool failure usually results from failing to control one or more of the vibration mechanisms. The solution starts with the ability to measure different modes and hence identify the different vibration mechanisms.
Jamil Abdo, Abdullah Al-Shabibi, Edris Hassan   +2 more
core   +1 more source

Research on Stick-slip Vibration Level Estimation of Drillstring Based on SVM

Shiyou jixie, 2019
To evaluate the severity of stick-slip vibration of drill string, a risk assessment method based on factor analysis (FA) and support vector machine (SVM) is proposed.
Chen Chong, Zhang Shimin, Peng He, Cui Can, Liu Yang   +4 more
doaj  

Western String Chamber Orchestra, March 24, 1996

, 2016
Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, March 24, 1996, 3:00 p.m., the 445th concert of the School of Music's 1995-1996 season.Western String Chamber Orchestra, Bruce J. Uchimura,
Western String Chamber Orchestra
core  

Dynamic Model and Stick-slip Reduction Characteristics of a New Torsional Vibration Tool

工程科学与技术, 2020
In the process of oil and gas exploitation, with the increase of drilling depth, the rock hardness is increased, and the downhole friction resistance is larger, the drill string system is prone to stick-slip vibration, which may lead to premature ...
Jialin TIAN, Hongzhi HE, Lin YANG, Yinglin YANG, Qianjin CHENG, Genyin LI, Shuhui HU   +6 more
doaj  

A review of vertical drill-string mathematical modelling

Applications in Engineering Science
This work aims to elucidate the fundamental concepts and approaches for modelling the vertical rotary drilling system and analysing drill string vibrations through a comprehensive literature review.
Jasem M. Kamel, Asan G.A. Muthalif, Abdulazim H. Falah   +2 more
doaj   +1 more source

Stability Analysis of the Rotary Drill-String [PDF]

, 2014
Oil and natural gas are major energy sources for modern society. A rotary drilling system is the best known technology to extract them from underground.
Pan, Liangming
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