DIAGNOSTIC AND PERFORMANCE ANALYSIS OF DRILLSTRING VIBRATIONS IN ZUBAIR FIELD [PDF]
Romanian Journal of Petroleum & Gas Technology, 2020 In order to improve the drilling performance and prevent the drillstring damage, it is required to reduce the drilling vibrations of wells. Consequently, the main aim of paper is to diagnose and analyze the drilling vibrations for Zubair field wells ...
Hussein Al Gburi +3 more
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Optimisation of an ultrasonic drill horn for planetary subsurface sample retrieval [PDF]
, 2011 Ultrasonic tools can cut through foodstuffs, biological material and other soft matter with relative ease. However, when attempts are made to cut through harder material, the rate of progress markedly declines.
Harkness, Patrick, Lucas, Margaret
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Transient responses of repeated impact of a beam against a stop [PDF]
, 2007 The transient behavior of a cantilever beam, driven by periodic force and repeated impacting against a rod-like stop, is the subject of this investigation.
Qin, Y, Yin, X.C., Zhou, H
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Journal of Marine Science and EngineeringIn order to gain an insight into the stress state of drillstring in riserless drilling conditions with Casing while Drilling (CwD) technology, a stochastic and nonlinear dynamic model of the drillstring under the excitation of the environmental load is ...
He Li +4 more
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A computational approach for the fatigue design of threaded connections
, 2011 International audienceThe aim of this paper is to propose a lifetime prediction method for threaded connections. The example discussed here is a drillstring connection used in the oil and gas industry.
Averbuch, Daniel +2 more
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Nonlinear rotordynamics of a drillstring in curved wells: models and numerical techniques [PDF]
, 2020 International audienceThe drilling operations for oil or geothermic extraction use a slender structure introduced inside the drill well, hanging from a derrick and driven by a rotary table at the surface.
Andrianoely, Marie-Ange +7 more
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Study of the influences of rotary table speed on stick-slip vibration of the drilling system
Petroleum, 2015 Stick-slip vibration presents one of the major causes of drilling problems, such as premature tool failures, low drilling efficiency and poor wellbore quality.
Liping Tang +4 more
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Дослідження залежності між напруженнями в елементах бурильного інструменту та характеристиками його коливального руху [PDF]
, 2014 На бурильну колону та породоруйнівний інструмент в процесі їх експлуатації діють статичні та динамічні навантаження, в тому числі і вібраційні. На підставі багаторічного досвіду експлуатації бурильних колон, теоретичних та експериментальних досліджень ...
Андрусяк, А. В. +2 more
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Avoiding harmful oscillations in a drillstring through dynamical analysis [PDF]
, 2007 Complexity of oilwell drillstrings makes unfeasible the direct application of control methodologies to suppress non-desired oscillations existing in these systems.
Cortés, Domingo, Navarro-López, Eva M.
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A Literature Review of Approaches for Stick-Slip Vibration Suppression in Oilwell Drillstring
Advances in Mechanical Engineering, 2014 Stick-slip vibration presents one of the main problems in the quality of drilling performance limiting tool life and productivity. This type of vibration can be suppressed by means of many approaches, such as varying parameters and use of control tools ...
Xiaohua Zhu, Liping Tang, Qiming Yang
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