长庆油田提高固井质量与套管防腐技术研究  

Study on Technique of Enhancing Cementing Quality and Preventing Casing Corrosive in Changqing Oil Field

作　　者：郭小阳[1] 张玉隆[1] 杨远光[1] 

机构地区：[1]西南石油学院油气田勘探与开发国家重点实验室

出　　处：《西南石油学院学报》1998年第2期47-52,共6页Journal of Southwest Petroleum Institute

基　　金：中国石油天然气总公司"八五"重点科技攻关项目

摘　　要：论述了长庆油田固井过程中存在的主要生产难题—水泥返高不足和注水泥井段胶结质量不理想；分析了影响固井质量的主要因素—水泥浆体系质量较差、井漏、长裸眼井段顶替效率不高、水泥浆凝结过程中油气水侵；提出了提高全井封固质量的技术对策、提高天然气井注水泥质量的主要工艺技术以及套管防腐技术。这套技术大幅度提高了低温易漏井段和油气水活跃产层的注水泥质量，并取得了显著的经济效益。The mainly difficult problem of production inadequate return top of slurry and poor bonding cementing hole reaction are discussed in the paper; the effective factors of cementing quality-poor slurry property, lost circulation, poor displacement in long bare hole, and o8il-gas-water migration in the processes of slurry setting are analyzed; the technical countermeasure of enhancing cementing quality and preventing casing corrosive are presented. The previous troubles are solved satisfactorily and marked economic benefit abstained by using these techniques in low temperature, weak and oil-gas-water active formation. 

关 键 词：固井质量 套管 防腐 经济效益 长庆油田 油田 

分 类 号：TE256[石油与天然气工程—油气井工程]