摘要
为准确分析多级多段注水管柱在不同工况下的动态力学性能及蠕动现象,在考虑井筒三维轨迹及多级多段注水管柱空间受力的基础上建立注水管柱三维力学模型,分析封隔器处受力连续性条件和注水管柱动态力学性能,研究封隔器的蠕动机制,提出多级多段注水管柱力学蠕动计算方法。针对河43-12井注水管柱,开展不同作业工况下的蠕动分析。结果表明:所提出蠕动算法的计算结果误差范围为8%~15%,具有较高的准确性;不同工况转换过程中,由于温度、压力变化剧烈,管柱蠕动明显,各级封隔器蠕动变化规律随时间变化基本一致;注水管柱施加刚性锚定后,各级封隔器蠕动量均大幅减小。
In order to accurately analyze the dynamic mechanical properties and creep behavior of multi-stage and multi-seg ment water injection pipe under different working conditions,a three-dimensional mechanical model of water injection pipe string was established.The three-dimensional trajectory of the wellbore and the spatial force of the multi-stage and multi-seg ment water injection pipe string were considered.The stress continuity conditions at the packer and the dynamic mechanical properties of the water injection pipe string were analyzed,the creep mechanism of the packer was studied and corresponding suggestions were put forward.The creep analyses were performed under different working conditions aiming at the water injec tion column of the well H 43-12.The results show that the error range of the creep algorithm proposed was 8%-15%,which possesses a high accuracy.During different conditions,due to the extreme changes of temperature and pressure,the creep of the column is very obvious.The creep variation law of the separator is basically the same with time passing by.Moreover,after the rigid injection of the water injection pipe column,the creep amount of the packer at each level greatly reduces.
作者
黄志宏
王旱祥
马珍福
鲍蕊
刘延鑫
魏振
兰文剑
汪润涛
HUANG Zhihong;WANG Hanxiang;MA Zhenfu;BAO Rui;LIU Yanxin;WEI Zhen;LAN Wenjian;WANG Runtao(College of Mechanical and Electronic Engineering in China University of Petroleum(East China),Qingdao 266580,China;Science and Technology Department of Shengli Oifield Branch,SINOPEC,Dongying 257000,China;Petroleum Engineering Technology Research Institute of Shengli Oilfield Branch,SINOPEC,Dongying 257000,China)
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2019年第6期144-150,共7页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家科技重大专项(2016ZX05011-004)
关键词
多级多段
细分注水
管柱力学
动态分析
蠕动
multi-stage and multi-segment
subdivision water injection
string mechanics
dynamic analysis
creep
作者简介
黄志宏(1976-),女,博士研究生,研究方向为井下管柱完整性评价。E-mail:huangzhihong.slyt@sinopec.com;通信作者:王旱祥(1967-),男,教授,博士,博士生导师研究方向为油气井管柱完整性技术与非常规油气装备技术。E-mail:wanghx1899@163.com。
