油井水泥自修复剂L-1的制备与评价  

Preparation and Evaluation of Oil Well Cement Self-Healing Agent L-1

作　　者：雷鑫宇[1,2] 于小荣 郑勇[2] 杨世杰[3] 王林 陈爽 

机构地区：[1]中国科学院成都有机化学有限公司,成都610041 [2]西南石油大学化学化工学院,成都610500 [3]中海油田服务股份有限公司油田化学事业部,天津塘沽300452 [4]中国石油长城钻探钻井液公司,辽宁盘锦124010

出　　处：《精细石油化工进展》2015年第1期10-12,共3页Advances in Fine Petrochemicals

基　　金：国家科技重大专项(2011ZX05022-006)

摘　　要：针对镁盐型膨胀剂快速微膨作用的特点,通过高温煅烧,钝化其活性,优选复配,制备了油井水泥自修复剂L-1。并经抗压强度和渗透率实验验证自修复剂膨胀性能,结果表明,L-1可通过二次微膨作用修复水泥石裂缝。X射线衍射(XRD)分析了自修复剂膨胀机理。In view of the quick swelling of magnesium salt expanding agent,oil well cement self- healing agent L- 1 was prepared by passivating the activity of magnesium salt expanding agent in high temperature calcination process and through optimization and proper combination. The self- healing performance of this self- healing agent was proven via compression strength experiment and permeability experiment,and the results have shown that Self- Healing Agent L- 1 can heal the crack on cement paste through secondary swelling action. The swelling mechanism of this self- healing agent was analyzed by X- ray diffraction analysis technique.

关 键 词：镁盐 钝化 自修复剂 抗压强度 渗透率 二次微膨 

分 类 号：TE256.6[石油与天然气工程—油气井工程]