contributor author | Caijin, Yang | |
contributor author | Zaibin, Cheng | |
contributor author | Wei, Jang | |
contributor author | Shiquan, Jiang | |
contributor author | Gexue, Ren | |
date accessioned | 2017-05-09T01:22:42Z | |
date available | 2017-05-09T01:22:42Z | |
date issued | 2015 | |
identifier issn | 0892-7219 | |
identifier other | omae_137_03_031403.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/159370 | |
description abstract | Excessive torque and drag in the wellbore can result in the buckling and the failure of the drillstring. Accurate predicting torque and drag is important in drilling operations. Due to the nature of the drilling, determination of torque and drag is a dynamic problem. A multibody dynamic model of the drillstring for the torque and drag analysis is developed here. Unlike traditional softstring models and stiffstring models, the developed model relaxes the assumption of continuous contact between the drillstring and the wellbore. Moreover, this model can account for overall rigid motion, threedimensional (3D) rotation and large deformation of the drillstring with largescale slenderness ratio and random contact between the drillstring and the wellbore. The effects of local protuberant components of the drillstring, such as the drillpipe subs and the stabilizers are also incorporated in the current model, which are not considered in most of existing models. Numerical analysis with three cases is carried out to show the application of the developed model in predicting torque and drag in the wellbore. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | A Multibody Dynamic Model of Drillstring for Torque and Drag Analysis | |
type | Journal Paper | |
journal volume | 137 | |
journal issue | 3 | |
journal title | Journal of Offshore Mechanics and Arctic Engineering | |
identifier doi | 10.1115/1.4029901 | |
journal fristpage | 31403 | |
journal lastpage | 31403 | |
identifier eissn | 1528-896X | |
tree | Journal of Offshore Mechanics and Arctic Engineering:;2015:;volume( 137 ):;issue: 003 | |
contenttype | Fulltext | |