摘要
在稳态拉力—扭矩模型的基础上 ,考虑海底大位移井井眼轨道和钻柱的特点 ,建立了用于监测海底大位移井钻柱与井眼摩擦系数的数学模型 ,提出了判断井眼清洁程度、井眼光滑程度、压差粘卡程度、缩径、坍塌、键槽等复杂状况的方法。
Based on static drag-torque model, the mathematical model used to monitor the friction factor between drill string and well bore, considering the features of the well trajectory and drill string in Extended-Reach Wells (ERW), is founded. The methods used to diagnose the wellbore cleaning degree, smooth degree, differential sticking degree, undergauge, sloughing and key-set are put forward in this paper.
出处
《石油钻探技术》
CAS
北大核心
2000年第5期4-6,共3页
Petroleum Drilling Techniques
基金
国家高技术研究发展计划课题! :82 0 -0 9-0 1 -0 3E部分研究成果论文
关键词
海底大位移井
监测系统
井眼净化
卡钻
钻柱
offshore well, hole cleaning, sticking, mathematical model, differential equation, drilling stem, drilling stem mechanics, coefficient of friction, frictional force, hole status, hook weight, pump pressure, torque
