汶川地震断裂带科学钻探项目钻井液技术与应用  

The Drilling Fluid Technology and Application of Wenchuan Earthquake Fault Scientific Drilling Project

作　　者：张统得[1] 陈礼仪[2] 贾军 李前贵[1] 

机构地区：[1]中国地质科学院探矿工艺研究所,四川成都611734 [2]成都理工大学,四川成都610059 [3]北京探矿工程研究所,北京100083

出　　处：《探矿工程（岩土钻掘工程）》2014年第9期139-142,145,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：科技部科技支撑计划专项"汶川地震断裂带科学钻探(WFSD)"项目之"科学钻探与科学测井"课题;中国地质调查局地调项目"破碎和强缩径地层大直径深孔取心钻进技术研究"(1212011120258)

摘　　要：汶川地震断裂带科学钻探(WFSD)项目地层极端复杂,主要表现在强破碎、强水敏和高地应力,施工难度极大。在理论分析的基础上,提出了对这些问题的解决对策。在WFSD项目几个钻孔的钻探施工中,选用并演化了改性磺化、LBM-GLA、钾铵基聚磺以及钾石灰聚磺4种不同的钻井液主体系,并取得了良好的应用效果。对各钻井液体系的特点与适用范围进行了总结。此外,提出了在深孔复杂地层钻探施工钻井液应用的一些体会与建议。The formations of Wenchuan Earthquake Fault Scientific Drilling Project（ WFSD） are extremely complicated.They are strong broken,high water sensitive and high stressed,which resulted in high difficulty of drilling operation. On the basis of theoretical analysis,some countermeasures were put forward to solve the problems. During the drilling operation of several boreholes of Wenchuan Earthquake Fault Scientific Drilling Project,we selected and evolved four different drilling fluid systems,included modified sulfonated,LBM-GLA and potassium lime polysulfonated drilling fluid systems,which have been good effective in applications. Also,this paper summarized the characteristics and application scope of all the drilling fluid systems. In addition,some experiences and suggestions on drilling fluid application for the deep hole with complex formation are put forward.

关 键 词：汶川地震断裂带 科学钻探 复杂地层 钻井液技术 

分 类 号：P634.6[天文地球—地质矿产勘探]