LSS塑性水泥体系研究及提高固井质量探讨  

RESEARCH ON LSS PLASTIC CEMENT SYSTEM

作　　者：刘呈君 李宾元[2] 

机构地区：[1]川西北矿区 [2]西南石油学院

出　　处：《钻采工艺》2003年第4期75-76,79,共3页Drilling & Production Technology

摘　　要：利用弹性理论分析固并后水泥环的应力变化,搞清水泥环封隔失效机理,并获得提高固井质量的途径。在此基础上研制出LSS塑性水泥体系。实践证明它优于常规水泥体系,可提高固井质量和水泥环封隔有效期。This article analyses the stress change of cement sheath after cementing by using elastic theory, makes sure the failure mechanism of cement sheath plugging and obtains the way of improving cementing quality . On these basis, LSS plastic cement system is developed. Through practice, the results show that its property surpass regular cement system, and can improve cementing quality and the period of validity of cement sheath plugging.

关 键 词：塑性水泥体系 固井质量 水泥环应力分析 井眼压力 现场应用 

分 类 号：TE256[石油与天然气工程—油气井工程] TE26