摘要
对某水平井在钻水泥塞过程中发生的钻柱上提遇卡和下放遇阻事故进行了调查研究。通过对钻水泥塞过程产生的异常现象进行分析,对钻柱阻卡位置以及钻柱与套管接头配合位置进行计算,对钻头损坏形貌进行宏观分析,认为在固井注水泥浆过程中套管接头从工厂端发生了脱扣,钻塞遇阻原因是套管脱扣。通过对套管强度和受力状态进行分析,认为在固井过程中套管承受震动载荷,且由于套管接头工厂端较为薄弱,因此在注水泥过程中套管接头工厂端首先产生松动,最终发生了脱扣。
The pipe sticking during drilling cement in one level well was investigated. It was found that the casing connection was pulled o- ver from the mill end during injecting grout per calculating and analyzing on abnormity phenomena in drilling cement, pipe sticking location and relative position between drill string and casing connections, and damage morphology of bit. The pipe sticking was caused due to casing connection pulled over. It was considered that the vibration load borne by casing string during well cementing, and the weakness connection of mill end would become looseness first, and then be pulled over in injecting cement.
作者
朱金智
吕拴录
耿海龙
王华
李岩
赵密锋
秦宏德
乐法国
石桂军
ZHU Jinzhi1 ,LYU Shuanlu1 2, GENG Hailong1 ,WANG Hua1 ,LI Yan1 ,ZHA0 Mifeng1 ,QIN Hongde1, YUE Faguo1 ,SHI Guijun1(1. College of Mechanical and Transportation Engineering o f China University o f Petroleum, Beijing 102249, China;2. PetroChina Tarim Oil Field Company, Korla, Xinjiang 841000, Chin)
出处
《石油管材与仪器》
2018年第2期59-62,共4页
Petroleum Tubular Goods & Instruments
关键词
固井
卡钻
套管
脱扣
well cementation
drill pipe sticking
casing
pull over
作者简介
朱金智,男,1966年生,高级工程师,1989年毕业于中国石油大学炼制系应用化学专业,一直从事钻井工程方案设计与研究.E-mail：lvshuanlu@163.com
