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| 西峰油田长8储层微观孔隙结构非均质性与渗流机理实验 | |
| 引用本文： | 宋广寿,高辉,高静乐,孙卫,任国富,齐银,路勇,田育红.西峰油田长8储层微观孔隙结构非均质性与渗流机理实验[J].吉林大学学报(地球科学版),2009,39(1). |
| 作者姓名： | 宋广寿 高辉 高静乐 孙卫 任国富 齐银 路勇 田育红 |
| 作者单位： | 1. 西北大学,大陆动力学国家重点实验室/地质学系,西安,710069;中国石油长庆油田公司,西安,710021 2. 西北大学,大陆动力学国家重点实验室/地质学系,西安,710069 3. 中国石油长庆油田公司,油气工艺技术研究院,西安,710021 4. 中国石油长庆油田公司,第三采油厂,银川,750006 |
| 基金项目： | 国家科技支撑计划，教育部长江学者和创新团队发展计划 |
| 摘 要： | 为深入剖析超低渗储层微观孔隙结构非均质性对渗流机理的影响程度,选取鄂尔多斯盆地西峰油田长8储层有代表性的样品进行了真实砂岩微观模型水驱油和CT扫描水驱油驱替实验.通过真实砂岩微观模型水驱油实验发现,对于没有微裂缝存在的岩样,水驱油效果往往与渗透率成正比关系,而微裂缝的存在使得微观孔隙结构非均质性显得更加突出,渗流机理将完全改变,从而水驱油效果也表现出较大的差异.CT扫描水驱油驱替实验结果也表明,微裂缝的存在明显增加了孔喉微观非均质程度,使得水驱效果变差.而环压对具有双重孔隙介质储层的注水效果会产生较大影响.可见对于超低渗储层,微观孔隙结构非均质性是造成注入水波及效率不高、水驱油效果差的主要原因. |
| 关 键 词： | 微观孔隙结构非均质 水驱油效率 渗流机理 X-CT成像 西峰油田 |
Experimental of Microscopic Pore Structure Heterogeneity and Flow Mechanism of Chang 8 Reservoir in Xifeng Oil Field |
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| SONG Guang-shou,GAO Hui,GAO Jing-le,SUN Wei,REN Guo-fu,QI Yin,LU Yong,TIAN Yu-hong.Experimental of Microscopic Pore Structure Heterogeneity and Flow Mechanism of Chang 8 Reservoir in Xifeng Oil Field[J].Journal of Jilin Unviersity:Earth Science Edition,2009,39(1). | |
| Authors: | SONG Guang-shou GAO Hui GAO Jing-le SUN Wei REN Guo-fu QI Yin LU Yong TIAN Yu-hong |
| Institution: | SONG Guang-shou1,2,GAO Hui1,GAO Jing-le1,SUN Wei1,REN Guo-fu3,QI Yin3,LU Yong4,TIAN Yu-hong41.The State Key Laboratory of Continental Dynamics/Department of Geology,Northwest University,Xi'an 710069,China2.Changqing Oilfield Company,Petrochina,Xi'an 710021,China3.Petroleum Technology Research Institute,Changqing Oilfeild Company,China4.No.3 Oil Production Plant,Changqing Oilfield Company,Yinchuan 750006,China |
| Abstract: | Representative samples are selected from Chang 8 reservoir of Xifeng oil field of Ordos basin to develop water displacing oil of in-situ sandstone microscopic model and water displacing oil of CT scanning for analyzing the impact of microscopic pore structure on flow mechanism of ultra-low permeability reservoir.The experimental results of water displacing oil indicate the water displacement efficiency always presents direct ratio with permeability for the core samples without microcrack.However,the existen... |
| Keywords: | microscopic pore structure heterogeneity water displacement efficiency flow mechanism X-CT imagery Xifeng oil field |
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