波动压力精准预测及随钻调控方法研究与应用  

Research and application of accurate prediction of swab andsurge pressure and control method while drilling

作　　者：徐彤[1] 郑卓 隋成龙 刘颖杰 范子涛 和鹏飞 XU Tong;ZHENG Zhuo;SUI Chenglong;LIU Yingjie;FAN Zitao;HE Pengfei(CNOOC EnerTech-Drilling&Production Co.,Tianjin 300452,China;CNOOC(China)Limited Tianjin Branch,Tianjin 300452,China)

机构地区：[1]中海油能源发展股份有限公司工程技术公司,天津300452 [2]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《石油化工应用》2021年第9期31-34,共4页Petrochemical Industry Application

基　　金：国家重点研发计划资助“海洋石油天然气开采事故防控技术研究及工程示范”,项目编号:2017YFC0804500。

摘　　要：钻井工程波动压力主要产生于管柱运动时的抽汲和激动,为有效解决高温高压等极窄钻井液窗口钻井安全问题,避免溢流和井漏,开展了基于Wellplan的抽汲和激动压力敏感性和工程调控方法研究,分析了钻井液性能、定向井轨迹、井筒与管柱、温度和压力等既定参数的敏感性影响以及按照两个方向(向上、向下)、三个过程(加速、恒速、减速)分析了运动控制参数影响,给出了工程随钻操作的方案,为工程钻前和钻中开展抽汲和激动当量控制提供了基于Wellplan的预测方案。The fluctuating pressure of drilling engineering is mainly caused by the swab and surge during the string movement.In order to effectively solve the drilling safety problem of extremely narrow drilling fluid window,such as HTHP wells,and avoid blowout and leakage.The sensitivity of swabbing and exciter pressure and engineering control methods based on Wellplan were studied.The influence of the sensitivity of given parameters such as drilling fluid performance,directional well trajectory,wellbore and string,temperature and pressure is analyzed,and the influence of motion control parameters is analyzed according to two directions(up,down)and three processes(acceleration,constant speed and deceleration).The scheme of engineering drilling-while operation is given,and the prediction scheme based on Wellplan is provided for swabbing and excitation equivalent control before and during drilling.

关 键 词：抽汲当量压力 激动当量压力 敏感性 精确预测 Wellplan 钻井工程 

分 类 号：TE271[石油与天然气工程—油气井工程]