海底大位移井井眼净化程度和卡钻可能性监测  

Monitoring Wellbore Cleaning Degree and Sticking Possibility in Offshore Extended Wells

作　　者：李子丰[1] 李相方[2] 单志刚 

机构地区：[1]中国地质大学(武汉),湖北武汉430074 [2]石油大学(北京)石油工程系,北京昌平102200

出　　处：《石油钻探技术》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

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.

关 键 词：海底大位移井 监测系统 井眼净化 卡钻 钻柱 

分 类 号：TE243[石油与天然气工程—油气井工程] TE252