Results 91 to 100 of about 801 (206)
Bifurcation Diagram and Dynamic Response of a Drill String Applied in NGH Drilling
, 2022 Natural gas hydrate (NGH) is a kind of unique resource among hydrocarbon fuels. It is stable within its sedimentary hosts and will only convert to its constituent gas and water phases relatively quickly if reservoir pressure-temperature conditions are ...
Xiaotong Liu +3 more
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Drill Pipe Dynamic Measurements Provide Valuable Insight Into Drill String Dysfunctions
, 2011 Recently the oil and gas drilling industry has become increasingly interested in drilling dynamics and vibration as a cause of reduced drilling performance, downhole tool and drill string failures. Historically, vibration data has been captured by an MWD
Ryan Graham +2 more
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Analysis on Mechanics and Reliability of Drill String during Deep Drilling
, 2011 The deep drill string is subjected to many kinds of loading under the condition of vibration and precession, such as tension, compression, bending and torsion, while the temperature and press are very high.
Shang Yu Yang +2 more
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, 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
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Suppression of Bending Vibration of Drill-Strings via an Adjustable Vibration Absorber
The International Journal of Acoustics and Vibration, 2012 Vibration control of the drilling process in the gas and oil industries is of great importance. Applying an effective control system diminishes both costs and process time and increases work efficiency. Typically, the drill string vibrates in a combination of three distinct modes of transverse, torsional, and axial vibrations.
Hamed Moradi +2 more
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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 +2 more
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Study on lateral vibration characteristics of BHA with double-span drill collar
Advances in Mechanical EngineeringThe severe vibration of BHA directly affect the drilling efficiency, borehole trajectory, and wellbore quality. Therefore, it is crucial for developing dynamic mechanics of drill string system by studying the mechanical behavior of BHA.
Zuwen Tao +7 more
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Vibration Damage Analysis of Bottom Hole Assembly Under Axial Impact Based on Dynamic Analysis
Applied SciencesImpact Drilling Technology is one of the most effective methods for enhancing the penetration rate and efficiency in hard rock formations. Downhole axial vibration impact tools can provide a stable impact load, but they also increase the complexity of ...
Qilong Xue +3 more
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EnergiesDrilling 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
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Analysis of vibration efficiency of drill string using the theory of random vibrations
, 2013 The paper presents the main results of the research work related to the development of theoretical and experimental methods for assessment of vibration strength level of the drill string components using probability theory.
Svitlytskyi, V. M. +2 more
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