石油钻采工艺2024，Vol.46Issue(1)：25-32,8.DOI:10.13639/j.odpt.202403042
考虑"筒中筒"耦合作用的深水隔水管柱与钻柱碰摩运动规律
Rub-impact rule between drill string and deep-water riser string in "tube-in-tube" coupling system
摘要
Abstract
During deep water drilling,the drill string rotates and cuts rocks under the driving of top drive.The riser string will vibrate under the influence of marine environment,and the contact relationship between the riser string and the drill string is very complex.It is difficult to study the vibration characteristics of riser and drill string in the deep water drilling,for the understanding of complex contact relationship between riser and drill string is challenging.To address this issue,this paper proposes a model of"tube-in-tube"coupled system that encompasses both the riser in ultra-deep water and the drill string in ultra-deep well,taking the contact and collision into account.This model is used to simulate the coupled vibration of the riser in ultra-deep water and the drill string during deep water drilling.The simulation results show that the vibration characteristics of riser and drill string obtained by considering the coupling effect.Notably,the marine environmental parameters have a significant impact on the drill string's dynamics:under high ocean current velocity,the riser string in ultra-deep water experiences significant bending,which affects the movement of the drill string.Additionally,the rotation speed of drill string has minimal influence on the whirling characteristics near wellhead.However,increasing the rotational speed leads to rub-impact between the drill string and the inner wall of the riser string,increasing the failure risk of drill string and riser string.关键词
深水钻井/钻柱动力学/"筒中筒"耦合结构/隔水管柱-钻柱耦合振动/接触碰撞Key words
deep-water drilling/drill string dynamics/"tube-in-tube" coupling structure/riser string-drill string coupling vibration/rub-impact分类
能源科技引用本文复制引用
狄勤丰,骆大坤,秦垦,王文昌,陈锋..考虑"筒中筒"耦合作用的深水隔水管柱与钻柱碰摩运动规律[J].石油钻采工艺,2024,46(1):25-32,8.基金项目
国家自然科学基金面上项目"考虑隔水管耦合作用的超深水超深曲井钻柱动力学研究"(编号:52174003),国家自然科学基金石油化工联合基金重点项目"超深井钻柱非线性动力学及动态安全性基础理论研究"(编号:U1663205). （编号:52174003）
