氟碳基硅烷偶联剂改性纳米SiO_(2)封堵剂的制备与性能评价  

Preparation and Performance Evaluation of Nano-silica Dioxide Plugging Agent Modified by Fluorocarbon Group Silanes Coupling Agent

作　　者：刘艳阳 杨力[2] 张顺[2] 张茂稳 蒋思臣 LIU Yan-yang;YANG Li;ZHANG Shun;ZHANG Mao-wen;JIANG Si-chen(SINOPEC East-China Petroleum Engineering Co.,Ltd.,Jiangsu Nanjing 210019;Sinopec Research Institute of Petroleum Engineering,SINOPEC,Beijing 100101;Daqing Donghua Petroleum Development Company Limited,Heilongjiang Daqing 163713,China)

机构地区：[1]中石化华东石油工程公司,江苏南京210019 [2]中国石化石油工程技术研究院,北京100101 [3]大庆东华油气开发股份有限公司,黑龙江大庆163713

出　　处：《广州化工》2022年第8期89-91,共3页GuangZhou Chemical Industry

摘　　要：以工业纳米SiO_(2)为原料,十七氟癸基三甲氧基硅烷为表面改性剂,制备了一种改性纳米SiO_(2)。借助激光粒度分析仪、扫描电镜(SEM)、六速流变仪和滤失仪,对比了改性前后纳米SiO_(2)在钻井液中的粒度分布和微观形貌特征,以及对钻井液流变性能和滤失性能的影响。通过模拟地层渗透率测试实验,评价了不同纳米SiO_(2)对纳微米孔隙的封堵能力。实验结果表明,改性纳米SiO_(2)呈单分散状态,对钻井液的流变性能影响较小,具有较强的滤失造壁能力和封堵能力。A modified nano-SiO_(2) was synthesized with industrial nano-SiO_(2),1H,1H,2H,2H-Perfluorodecyl-trimethoxysilane as surface treating agent.Using laser particle size analyzer,scanning electron microscope(SEM),six-speed electronic rheometer and filtration apparatus,particle size distribution,micro-morphological feature,rheological behavior and filtration properties were compared with industrial nano-SiO_(2) and surface modified nano-SiO_(2) individually.The plugging ability to micro-facture formation was further tested via permeability of simulated formation test.The results showed that the modified nano-SiO_(2) was monodisperse,had little influence on the rheological properties of drilling fluid,and had strong ability of filtration and wall building and plugging.

关 键 词：钻井液 纳米SiO_(2)硅烷偶联剂 表面改性 封堵性能 

分 类 号：TE254[石油与天然气工程—油气井工程]