玻璃基质表面的气体润湿性与其表面自由能关系  

Relationship between gas wettability of glass matrix surface and its surface free energy

作　　者：张民[1,2] 蒋官澄[1,2] 邢晓璇[3] 庞姜涛[1,2] 孙飞[4] 罗少杰[1,2] 

机构地区：[1]中国石油大学(北京)石油工程教育部重点实验室,北京102249 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [3]胜利油田海洋采油厂 ,山东东营257237 [4]长庆油田分公司井下技术作业公司,陕西西安710018

出　　处：《东北石油大学学报》2012年第6期38-41,7-8,共4页Journal of Northeast Petroleum University

基　　金：国家自然科学基金创新研究群体项目(51221003);中国国家杰出青年基金项目(50925414);国家科技重大专项(2011ZX05009-005-03A)

摘　　要：针对气相中憎液表面的气体润湿性常常被忽略,但理论和实验证实气体的润湿性并不总是可以被忽略,凝析气藏气体润湿程度对气井产能具有重要影响,根据Owens双液法建立固体表面自由能计算模型,并且结合自定义的气体润湿性参数实现定量表征气体润湿性的大小,导出固体表面的气体润湿性与表面自由能的数学关系式.采用氟碳聚合物(Zonyl8740)实现空气中"空气/水/载玻片"体系载玻片表面的优先气湿,随Zonyl8740质量分数的增大"正十六烷/空气/载玻片"体系载玻片表面的气湿性增强.In gas phase,affinity to air is a typical feature of hydrophobic and oleophobic surface,but frequently it has either been overlooked or not taken into consideration.On the other hand,both theory and experiments indicate that gas-wetness can not be always overlooked and the gas-wet degree affects gas-well production greatly in gas condensate reservoirs.In the study,mathematic model of surface free energy,combined with gas-wet ability parameters was used to characterize quantitative gas-wet degree.And the relationship between gas wettability and surface free energy was established.Furthermore,preferential gas-wettability is realized by use of fluorocarbon polymer(Zonyl8740) in 'air/water/glass slide' system in air.While,in this system,with the increase of concentration of Zonyl8740,the gas wettability of glass slide surface is getting stronger.

关 键 词：玻璃基质 气体润湿性 表面自由能 气体润湿性参数 定量评价 

分 类 号：TE342[石油与天然气工程—油气田开发工程]