| 二氧化碳驱替对岩石润湿性的影响 |
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| 引用本文： | 郭洋,杨胜来,张旭.二氧化碳驱替对岩石润湿性的影响[J].复杂油气藏,2011,4(2):65-67. |
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| 作者姓名： | 郭洋 杨胜来 张旭 |
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| 作者单位： | 中国石油大学(北京);中国石化齐鲁分公司炼油厂; |
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| 基金项目： | 国家重点基础研究发展规划项目“温室气体提高石油采收率的资源化利用及地下埋存”(2006CB705800) |
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| 摘 要： | 储层实施二氧化碳驱替措施后,岩石润湿性的改变有4种机理,即沥青质的吸附与絮凝作用、离子桥接作用、净电荷同性相斥异性相吸作用和地层水的影响作用。理论上分析4种机理对岩石润湿性的改变作用。按照SY/T5153—2007规定的行业标准,对亲油、亲水和中性润湿的三种岩石,采用离心法测试二氧化碳驱替前后岩石的润湿性。实验数据表明...
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| 关 键 词： | 二氧化碳驱替 岩石润湿性 机理 实验 |
The influence of carbon dioxide flooding on rock wettability |
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| Authors: | Guo Yang Yang Shenglai Zhang Xu Beijing Qilu Petrochemical Refinery Plant SINOPEC Zibo Sh ong |
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| Affiliation: | Guo Yang1,Yang Shenglai,Zhang Xu2 (1.China Petroleum University(Beijing),Beijing 102249,2.Qilu Petrochemical Refinery Plant,SINOPEC,Zibo,Shandong 255400) |
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| Abstract: | After carbon dioxide flooding,there are four rock wettability changing mechanisms including asphaltene adsorption and flocculation,ion bridging role,the charge of same-sex attraction and opposite-sex repulsion and the formation water influence.The impact of the four mechanisms on rock wettability changes was analyzed theoretically.According to the industry standard of SY/T 5153-2007,the wettability of pro-oil,hydrophilic and neutral wetting rocks was tested by centrifugal method before and after displacemen... |
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| Keywords: | carbon dioxide flooding rock wettability mechanism experiment |
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