Model-Based Optimization Approach for Mitigation of Torsional Oscillations in Drilling Systems

被引：0

作者：

Hohl, A. ^{[1
]}

Tergeist, M. ^{[2
]}

Oueslati, H. ^{[1
]}

Herbig, Chr. ^{[1
]}

Ichaoui, M. ^{[2
]}

Ostermeyer, G. -P. ^{[2
]}

Reckmann, H. ^{[1
]}

机构：

[1] Baker Hughes, Rialto, CA 92377 USA

[2] Tech Univ Carolo Wilhelmina Braunschweig, Inst Dynam & Vibrat, Braunschweig, Germany

来源：

OIL GAS-EUROPEAN MAGAZINE | 2016年 / 42卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Drilling systems are subject to torsional vibrations that are excited by bit-rock interaction. These torsional oscillations can be distinguished by mode shape and natural frequency. Well-known stick/slip oscillations are characterized by relatively low frequencies and affect the entire drillstring. High-frequency torsional oscillations (HFTO), in contrast, denote the excitation of a high-order eigenmode [1, 2] In the case of HFTO, high dynamic loads are mainly experienced by the bottom-hole assembly (BHA). All torsional oscillations can compromise drilling efficiency and tool reliability. It is important to estimate expected dynamic loads during the design process of new tools and for optimal design of bottom-hole assemblies. Therefore, models are necessary that can predict the expected dynamic loads.

引用

页码：37 / 38

页数：2

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