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| 沥青质与石英表面相互作用及润湿性改变机理 | |
| 引用本文： | 王业飞,王所良,徐怀民,于维钊,齐自远,吕恒宇.沥青质与石英表面相互作用及润湿性改变机理[J].油气地质与采收率,2011,18(4). |
| 作者姓名： | 王业飞 王所良 徐怀民 于维钊 齐自远 吕恒宇 |
| 作者单位： | 1. 中国石油大学(北京)地球科学学院,北京,102249;中国石油大学(华东)石油工程学院,山东青岛,266555 2. 中国石油大学(华东)石油工程学院,山东青岛,266555 3. 中国石油大学(北京)地球科学学院,北京,102249 |
| 基金项目： | 中国博士后科学基金资助项目，"泰山学者"建设工程资助 |
| 摘 要： | 当沥青质与油藏岩石接触时,会使岩石表面的润湿性向亲油方向转变.对于利用沥青质甲苯溶液处理的石英片,考察了沥青质甲苯溶液的浓度、石英表面水膜及水膜中的金属阳离子对沥青质改变石英表面润湿性的影响,并用漫反射红外光谱分析了沥青质甲苯溶液处理前后石英粉表面化学性质的变化,以推断沥青质改变石英表面润湿性的机理.实验结果表明,石英片表面的亲油性随沥青质甲苯溶液浓度的增加而增强.与干燥石英片相比,表面附着水膜的石英片,经过沥青质甲苯溶液浸泡后,石英片表面的亲油性减弱;当水膜中含有金属阳离子时,石英片表面的油湿性增强.红外光谱分析表明,沥青质分子在干燥石英表面与硅醇羟基发生极性相互作用,在二价金属阳离子溶液处理石英表面之后,沥青质分子可在水合离子的离子桥作用下吸附于石英表面. |
| 关 键 词： | 沥青质 润湿性 石英 红外光谱 作用机理 |
Interaction between asphaltene and quartz surface and mechanisms of wettability alteration |
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| Wang Yefei,School of Petroleum Engineering,China University of Petroleum,Qingdao City,Sh,ong Province,China Wang Suoliang,Xu Huaimin et al..Interaction between asphaltene and quartz surface and mechanisms of wettability alteration[J].Petroleum Geology and Recovery Efficiency,2011,18(4). | |
| Authors: | Wang Yefei School of Petroleum Engineering China University of Petroleum Qingdao City Sh ong Province China Wang Suoliang Xu Huaimin |
| Affiliation: | Wang Yefei,School of Petroleum Engineering,China University of Petroleum(East China),Qingdao City,Shandong Province,266555,China Wang Suoliang,Xu Huaimin et al. |
| Abstract: | Herein,the quartz surface is treated with toluene solution of asphaltene to investigate the effect of soaking time,solution concentration,water film on quartz,and metal cations in water film on wettability of quartz surface.The quartz surface chemistry is characterized with diffuse reflection IR spectroscopy to elucidate the wettability alteration mechanism.Results show that the oil wetting property of quartz surface increases with the rise of asphaltene concentration.Quartz with surface water film possesse... |
| Keywords: | asphaltene wettability quartz IR spectra interaction mechanism |
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