| 二氧化碳非混相驱油藏沥青质沉淀规律研究 |
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| 引用本文： | 何岩峰,李栋,胡杰,郭立春.二氧化碳非混相驱油藏沥青质沉淀规律研究[J].西安石油大学学报(自然科学版),2011,26(4). |
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| 作者姓名： | 何岩峰 李栋 胡杰 郭立春 |
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| 作者单位： | 常州大学石油工程学院,江苏常州,213016 |
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| 基金项目： | 中国石油科技创新基金研究项目“CO2驱油藏原油沥青质沉淀影响因素研究”(编号:2008D-5006-02-07) |
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| 摘 要： | 为研究二氧化碳驱油藏中原油沥青质沉淀量预测方法,设计了二氧化碳非混相驱沥青质沉淀动态岩心驱替实验装置,采用正交实验分析方法研究了非混相驱条件下驱替压力、温度、岩心初始渗透率、原油中的沥青质含量和驱替速度等因素对驱替后岩心中原油沥青质沉淀量的影响,分析了作用机理,回归出了二氧化碳非混相驱过程中原油沥青质沉淀量预测公式并用实验结果进行了验证.验证结果表明,该预测公式可直接用于二氧化碳非混相驱原油沥青质沉淀量预测.
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| 关 键 词： | 二氧化碳驱油 沥青质沉淀 沥青质沉淀预测 |
Study on the precipitation rules of petroleum asphaltene in carbon dioxide immiscible displacement reservoir |
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| HE Yan-feng,LI Dong,HU Jie,GUO Li-chun.Study on the precipitation rules of petroleum asphaltene in carbon dioxide immiscible displacement reservoir[J].Journal of Xian Shiyou University,2011,26(4). |
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| Authors: | HE Yan-feng LI Dong HU Jie GUO Li-chun |
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| Affiliation: | HE Yan-feng,LI Dong,HU Jie,GUO Li-chun(College of Petroleum Engineering,Changzhou University,Changzhou 213016,Jiangsu,China) |
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| Abstract: | Oilfield practices indicate that carbon dioxide flooding may cause the precipitation of asphaltene,which will decrease the permeability of reservoir,the productivity of oil well and the result of reservoir development.Therefore,it is very important to understand the rules of asphaltene precipitation during carbon dioxide flooding.The effects of displacement pressure,temperature,original core permeability,original asphaltene content in crude oil and displacement rate on the precipitation amount of asphaltene... |
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| Keywords: | carbon dioxide flooding asphaltene precipitation asphaltene precipitation prediction |
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