外掺料细度对油井水泥石抗酸性气体腐蚀性能的影响研究  

Studies on the influence of the fineness of external admixtures on the corrosion resistance of oil well cement expose to acidic gas

作　　者：徐春虎[1] 黄金营[1] 

机构地区：[1]中国石油化工股份有限公司石油工程技术研究院,北京100101

出　　处：《石化技术》2015年第7期145-146,161,共3页Petrochemical Industry Technology

摘　　要：本文通过分析油井水泥石在酸性气体条件下的腐蚀动力学,提出了油井水泥石的孔隙率是影响其抗酸性气体腐蚀的重要因素,并通过实验发现在油井水泥浆中添加5%偏高岭土可以改善水泥石的孔隙率和抗酸性气体腐蚀性能。The corrosion kinetics of acid-gas-expose d oilwellcementissimulated,demonstrating that porosity played a key role in the acid-resistant capability. Further,with the dopant of 5 wt.%of metakaolin,the microstructure and porosity of oil well cement is optimized, the acid-resistant capability of oil wellcement slurry at high temperature is promoted.

关 键 词：水泥石 酸性气体 腐蚀 孔隙率 外掺料 

分 类 号：TE256.7[石油与天然气工程—油气井工程]