汶川地震断裂带科学钻探项目WFSD-2孔防漏固井技术研究与应用
投稿时间：2012-08-08  修订日期：2012-08-08  点此下载全文
引用本文：李前贵,李旭东,贾军,等.汶川地震断裂带科学钻探项目WFSD-2孔防漏固井技术研究与应用[J].钻探工程,2012,39(9):39-40,44.
LI Qian-gui,LI Xu-dong,JIA Jun,et al. Anti-leakage Cementing Technology with Low Density Slurry in WFSD-2 of Wenchuan Earthquake Fault Scientific Drilling Project[J]. Drilling Engineering, 2012,39(9):39-40,44.
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作者单位E-mail
李前贵* 中国地质科学院探矿工艺研究所 liqiangui@163.com 
李旭东 江苏省地矿局第六地质大队  
贾军 北京探矿工程研究所  
张培丰 北京探矿工程研究所  
李早元 西南石油大学  
基金项目: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
中文摘要:汶川地震断裂带科学钻探项目二号孔（WFSD-2）钻探施工过程中，地层破碎，坍塌、掉块严重，钻进过程中发生多次井漏。为防止固井过程中发生漏失影响固井质量，采用低密度防漏水泥浆常规单级固井工艺。经过多次水泥浆性能试验，调配出了既具有良好流动性、又具有触变性的低密度纤维防漏水泥浆配方。该低密度纤维防漏水泥浆体系在WFSD-2孔168.3 mm套管固井中施工顺利，应用效果良好。
中文关键词:关键词：汶川地震断裂带  科学钻探  低密度水泥浆  防漏  固井
 
Anti-leakage Cementing Technology with Low Density Slurry in WFSD-2 of Wenchuan Earthquake Fault Scientific Drilling Project
Abstract:Due to the broken stratum, wall collapsing, landslide accidents and lost circulation happened frequently in the drilling of the second hole of Wenchuan earthquake fault scientific drilling project (WFSD-2). For preventing lost circulation during cementing, anti-leakage cementing technology with low density slurry was selected. Through multiple performance experiment of slurry, the formulation of low density slurry for anti-leak was optimized. This formulation was successfully adopted to cement the 168.3 casing in WFSD-2.
keywords:Wenchuan earthquake  earthquake fault  scientific drilling  low-density slurry  anti-leakage  cementation
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