摘要
针对水平井套管下入过程中的摩阻问题,使用有限元数值模拟计算方法,分析了二维平面状态下套管下入过程中与井壁的接触情况。结果表明,套管下入过程中与井筒内表面并非均匀接触,接触压力(摩擦力)较大区域主要是在造斜段,包括造斜段起始、中间及结束点附近,直水平段与井壁接触压力分布较均匀,管端部位的接触压力大于其他部位的接触压力。
To analyze the friction of casing run-in,2D FEA method was used and the contact between casing and borehole surface was studied.The results show that the distribution of contacts are non-uniform and five areas with larger contact pressure or friction are located around the deflecting section,including initial,intermidiate and end points.The contact pressure is uniformity along the horizontal hole and there is a concentration at the end of casing.
作者
申昭熙
张超
纪海涛
林凯
韩礼红
王建军
SHEN Zhaoxi;ZHANG Chao;JI Haitao;LIN Kai;HAN Lihong;WANG Jianjun(State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials,CNPC Tubular Goods Research Institute,Xi′an,Shaanxi 710077,China;PetroChina Changqing Oilfield Company,Jingbian,Shaanxi 718500,China;Research Institute of CNPC Bohai Equipment Manufacturing Co.,LTD,Qingxian,Heibei 062650,China)
出处
《石油管材与仪器》
2022年第6期50-53,共4页
Petroleum Tubular Goods & Instruments
基金
中国石油集团公司科研项目“油气井套损评价与修复关键技术研究”(编号:2021DJ2705)。
关键词
水平井
弯曲
套管下入
接触
horizontal well
bending
casing run-in
contact
