稠油冷采泡沫油稳定性影响因素微观实验  

MICROSCOPIC EXPERIMENT OF THE INFLUENCING FACTORS OF THE FOAM OIL STABILITY FOR THE COLD FLOW PRODUCTION OF HEAVY OIL

作　　者：赵瑞东[1,2] 吴晓东[2] 王瑞河 熊春明[1] 张建军[1] 张娜[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油大学石油工程教育部重点实验室,北京102249 [3]中国石油天然气勘探开发公司,北京102249

出　　处：《大庆石油地质与开发》2012年第6期99-103,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：加拿大CMG基金会项目“Industrial Research Chairin Non-Conventional Reservoirs Modeling”;国家科技重大专项“大型油气田及煤层气开发”（2008ZX05009-05）.

摘　　要：在加拿大、委内瑞拉以及中国的一些稠油油藏溶解气驱过程中，表现出了异常的开发动态：低的生产气油比、高的采油速度和高于预期的一次采收率。普遍认为泡沫油是产生这种异常动态的重要机理之一。为此，通过玻璃微模型实验观察了泡沫油形成过程中微气泡的产生、运移、合并、破裂以及最终产生连续气相的全过程；同时研究了影响泡沫油稳定性的几个影响因素，即压力衰竭速率、温度、原油黏度、溶解气油比等。实验结果表明，压力衰竭速率及原油黏度是泡沫油形成和稳定性的主要影响因素。该研究有利于进一步认清泡沫油现象的微观机理。In Canada, Venezuela and China, Some heavy oil reservoirs driven by solution gas are characterized by abnormal performances： low gas oil ratio, high production rate and higher-than-expected primary recovery factor. It is generally believed that the foam oil is one of the important mechanisms that contribute to these phenomena. In the glass micro-model experiment, it can be observed for the processes of bubble nucleation, migration, consolidation, breakup and ultimately a continuous gas phase generated. At the same time, a few affecting factors on the stability of the foam oil are researched, such as pressure depletion rate, crude oil viscosity, temperature, dissolved gas-oil ratio etc. the experimental results show that the former two are the principal influencing factors on the generation and sta- bility of the foam oil. This study helps to further understand the microscopic mechanism of the foam oil.

关 键 词：泡沫油 玻璃微模型 流动特性 影响因素 

分 类 号：TE345[石油与天然气工程—油气田开发工程]