石油与天然气化工Issue(5):66-72,7.DOI:10.3969/j.issn.1007-3426.2015.05.014
大庆油田三元复合驱液与储层岩心反应性研究
Study on the reaction of alkali/surfactant/polymer and reservoir cores in Daqing Oilfield
摘要
Abstract
The alkali/surfactant/polymer (ASP) flooding technology can significantly enhance oil recovery ,but the ASP injection fluid can easily react with reservoir cores ,resulting in scaling ,plug‐ging and the recovery rate reducing .So it is necessary to study dissolution ,transportation and plug‐ging rules of ASP in reservoir . In this paper , the reaction process of ASP and reservoir cores in Daqing Oilfield was analyzed by X‐ray diffraction (XRD) ,Fourier transform infrared spectroscopy (FT‐IR) ,polarizing microscope(PM ) ,environmental scanning electron micoscope(ESEM ) and ener‐gy dispersive spectroscopy(EDS) .The study on reaction kinetics was conducted and the dissolution kinetics equations of Si and Al were calculated .The results show that albite ,nosean ,buddingtonite are respectively formed in Nanwuqu ,Xingshugang ,and Lamadian cores after 50 days .The dissolved amount of Si is three to four times than that of Al and the kinetics equations of Al are in the power function form .The replacement of NaOH with KOH or Ca(OH)2 is advised .关键词
大庆油田/三元复合驱/储层岩心/动力学方程/反应机理/技术建议Key words
Daqing Oilfield/ASP/reservoir core/kinetics equation/reaction mechanism/techni-cal proposal分类
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伍晓林,殷义栋,吴国鹏,鲁安怀,侯兆伟,丁竑瑞,王浩然,杨晓雪..大庆油田三元复合驱液与储层岩心反应性研究[J].石油与天然气化工,2015,(5):66-72,7.基金项目
大庆油田对外协作计划项目“强碱复合体系与储层矿物相互作用过程及机理研究”(2012-JS-911)。 ()