石油钻采工艺2023，Vol.45Issue(5)：523-531,9.DOI:10.13639/j.odpt.202201010
大位移井钻井管柱作业极限实时预测方法
Real-time prediction method of pipe string operation limits in drilling extended-reach wells
摘要
Abstract
During drilling the long open-hole section of extended-reach wells,wellbore is sensitive to complex and variable constraints;thus,how to accurately predict the operation limits of pipe strings is vital for safe and efficient operations.Considering the timeliness of measured data,a section-based real-time friction coefficient inversion method was developed to enable the real-time monitoring of borehole conditions during drilling.Moreover,a real-time prediction method of pipe string operation limits was established by integrating the prediction model of pipe string operation limits with the real-time friction coefficient inversion method.Finally,the concept of the pipe string operation safety factor was introduced,and a real-time evaluation method of pipe string operation risks based on the string operation limits was established.The case study shows that the proposed method can predict the pipe string operation limits in the drilling process of extended-reach wells in a real-time manner,identify the abnormal well sections,quantitatively evaluate the risk level of string operations,and clarify the main factors constraining the operation limit of pipe strings in a real-time manner.The proposed method provides a technical support for risk identification and optimization of drilling.关键词
大位移井/管柱作业极限/实时预测/摩阻系数/风险评估Key words
extended-reach well/pipe string operation limit/real-time prediction/friction coefficient/risk evaluation分类
能源科技引用本文复制引用
赵军,黄文君,高德利..大位移井钻井管柱作业极限实时预测方法[J].石油钻采工艺,2023,45(5):523-531,9.基金项目
国家自然科学基金青年基金"旋转钻柱动力屈曲临界条件与后屈曲蛇形摆动和螺旋涡动行为研究"(编号:51904317) （编号:51904317）
国家自然科学基金创新研究群体项目"复杂油气井钻井与完井基础研究"(编号:51821092) （编号:51821092）
国家自然科学基金石油化工联合基金项目"页岩和致密油气田高效开发建井基础研究"(编号:U1762214) （编号:U1762214）
中石油战略合作科技专项专题"陆相页岩油深部地层钻井提速技术研究"(编号:ZLZX2020-01-07-01) （编号:ZLZX2020-01-07-01）
中国石油大学(北京)科研启动基金(编号:ZX20180414). （北京）
