超高温水基钻井液技术在超深井泌深1井的应用  

The Application of High Temperature Drilling Fluid Technology in Well Bishen-1.

作　　者：邱正松[1] 黄维安[1] 何振奎[2] 孟怀启[2] 蒋建宁[2] 薛玉志[1] 刘克飞[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛 [2]中石化河南油田分公司工程技术研究院,河南南阳

出　　处：《钻井液与完井液》2009年第2期35-36,42,共3页Drilling Fluid & Completion Fluid

摘　　要：针对超深井钻井中存在的高温稳定性以及流变性、滤失性控制等钻井液技术难题,通过进行分子结构设计、单体优选和制备条件优化,研制出了抗高温抗盐聚合物降滤失剂和降黏剂,对比评价结果表明,研制出的降滤失剂的抗高温、抗盐抗钙和降滤失性能均优于国内外同类产品;研制出的降黏剂在各种钻井液基浆中的高温降黏效果明显优于国外的降黏剂。结合河南油田泌深1井深层钻井,对钻井液高温稳定性和防塌技术的需求,研制出了抗温达245℃的超高温水基钻井液,其具有高温稳定性强、润滑性好以及页岩抑制能力、封堵能力及抗污染能力强等优点。应用结果表明,应用井段起钻无挂卡,下钻能顺利到底,没有发生长段划眼情况;在井底241℃超高温条件下钻井液性能稳定;钻井周期短,钻井液成本较低。A salt-resistant polymer filtrate reducer and a salt-resistant thinner for use in high temperature environment were developed to address the high temperature rheology, filtration property control in ultra-deep wells. The two additives have advantages over presently used additives in terms of high temperature stability, salt/calcium contamination resistance, and filtration control. Based on the requirements for high temperature and shale inhibition in Well Bishen-1, a water based drilling fluid used at temperature as high as 245 ℃ was developed, and was successfully applied in Well Bishen-1.

关 键 词：超高温钻井液 井眼稳定 超深井 泌深1井 

分 类 号：TE254.3[石油与天然气工程—油气井工程]