准北区块钻井液体系的优化及应用  

Optimization and application of drilling fluids in Zhunbei Block

作　　者：邱春阳[1] 李蕾[1] 秦涛[1] 姜春丽[1] 陈二丁[1] 王宝田[1] QIU Chunyang;LI Lei;QIN Tao;JIANG Chunli;CHEN Erding;WANG Baotian(Drilling Engineer Technology Corporation,Shengli Petroleum Engineering Corporation Limited,SINOPEC,Dongying 257064,China)

机构地区：[1]中国石化胜利石油工程有限公司钻井工程技术公司,山东东营257064

出　　处：《断块油气田》2018年第5期653-656,共4页Fault-Block Oil & Gas Field

基　　金：胜利石油工程公司先导项目"准噶尔盆地硬脆性地层钻井液技术先导试验"(SJX1503)

摘　　要：准北区块地质构造复杂,施工中对钻井液性能要求高。在对准北1井所用钻井液体系应用情况进行分析后,对其所使用的聚胺磺化封堵防塌钻井液体系进行优化,增强了钻井液体系的封堵性能,形成了聚胺纳米封堵钻井液体系。优化后的聚胺纳米封堵钻井液体系在准北2井进行了现场应用,平均井径扩大率低,达到了低密度下井壁稳定的良好效果。The technology difficulty of drilling fluid is very great in Zhunbei Block because the geologic structure is very complex.Analyzing the application effect of drilling fluid applied to Zhunbei 1 Well,the poly-amine and sulfonation drilling fluid with formation sealing and anti-caving ability was optimized,and the formation sealing property was improved.The poly-amine nano-technology formation sealing drilling fluid was researched and developed.The optimized drilling fluid was applied to Zhunbei 2 Well,resulting in low rate of average hole diameter enlargement and good effect of wellbore stability under the condition of low density drilling fluids.

关 键 词：聚胺磺化 纳米封堵 准北2井 准北区块 

分 类 号：TE254[石油与天然气工程—油气井工程]