CO_2埋存井固井水泥环封存效果与其性能参数研究  

The Study on Cement Sheath Sealing Effect and Its Performance Parameters of CO_2 Buried Well

作　　者：闫铁[1] 李永祥[1] 李静[2] 冯福平[1] 柏明星[1] 

机构地区：[1]东北石油大学,大庆163318 [2]大庆油田有限责任公司第一采油厂,大庆163000

出　　处：《科学技术与工程》2014年第18期25-29,共5页Science Technology and Engineering

基　　金：黑龙江省青年科学基金(QC2012C021)资助

摘　　要：CO2埋存井固井水泥环封存能力是决定CO2长期有效埋存的关键,影响水泥环封存能力的因素除了井筒周围外部条件外,还与水泥环自身的力学特性有关。首先分析了影响水泥环封存能力的外部因素,并对水泥环受力状态与其力学参数之间的关系进行研究,最后结合外部条件和水泥环自身力学特性,确定出能够满足CO2长期有效埋存的水泥环的力学参数。Long-term and effective storage of carbon dioxide depend on the seal ability of carbon dioxide buried well cement sheath , the factors affecting cement seal ability is not only related to external conditions around wellbore , also influenced by mechanics performance parameters of cement sheath itself. The influenced the external factors were analyzed on cement seal ability, and the relationship between the cement sheath stress state and its mechanical parameters was studied, finally the external factors and cement sheath performance of itself were combined to determine the reasonable mechanical parameters that can make the carbon dioxide storage for a long time.

关 键 词：CO2埋存井 固井水泥环 力学参数 有效埋存 

分 类 号：TE256.1[石油与天然气工程—油气井工程]