| 核磁共振在孔南官195断块剩余油挖潜中的应用 |
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| 引用本文： | 王怀忠,郑振英,张桂明,李炼民,衡海良.核磁共振在孔南官195断块剩余油挖潜中的应用[J].新疆地质,2009,27(4). |
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| 作者姓名： | 王怀忠 郑振英 张桂明 李炼民 衡海良 |
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| 作者单位： | 中国石油大港油田勘探开发研究院,天津,300280 |
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| 摘 要： | 大港油田孔南官195断块单井日产能力较低,层间层内矛盾恶化,部分油组水淹严重,剩余油分布规律认识不清.利用核磁共振技术,从微观角度研究不同流动单元的驱油特点和剩余油分布特点.研究发现:I类流动单元样品驱油效率比Ⅱ类流动单元高7.47%,但Ⅱ类流动单元样品水驱后聚合物驱油效率提高6.35%,剩余油主要分布于油层动用程度差的流动单元中.在完善注采系统基础上,挖潜时对I、Ⅱ类流动单元通过层间卡封和堵水调剖挖掘中上部剩余油,对Ⅲ、Ⅳ类流动单元采取补孔、打新井方式提高储量动用程度.采取一系列挖潜措施后,预计官195断块最终采收率将能提高5.1%.
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| 关 键 词： | 核磁共振 剩余油 流动单元 挖潜对策 |
APPLICATION OF NMR IMAGING TECHNIQUE TO THE REMLAINING OIL DISTRIBUTION AND POTENTIAL TAPPING MEASURERS IN GUAN 195 FAULT BLOCK OF KONGNAN AREA |
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| WANG Huai-zhong,ZHENG Zhen-ying,ZHANG Gui-ming,LI Lian-min,HENG Hai-liang.APPLICATION OF NMR IMAGING TECHNIQUE TO THE REMLAINING OIL DISTRIBUTION AND POTENTIAL TAPPING MEASURERS IN GUAN 195 FAULT BLOCK OF KONGNAN AREA[J].Xinjiang Geology,2009,27(4). |
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| Authors: | WANG Huai-zhong ZHENG Zhen-ying ZHANG Gui-ming LI Lian-min HENG Hai-liang |
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| Abstract: | The reservoir in Kong 1 member in Guan 195 Fault Block of Kongnan Area is Alluvial environment,there are a series of problems arising in its high water-cut stage,such as the low single well oil production,poor interlayer and inner contradictions,serious water flooding of oil layer,misunderstanding the role of the remaining oil distribution.NMR imaging technique is applied to research the characteristics of Oil displacement efficiency on different fow units from microscopic angel.The study reveals that the Oil displacement efficiency of ikind of flow units is 7.47% higher than that in the Ⅱ kind of flow units,but after the water floodiing,the polymer displacement efficiency of Ⅱ kind of flow units can recovery 6.35% more than tha in the ikind of flow units.in other words,remaining oil is mainly distributed in the flow units of low producing degree.Thereby,the treatment measurements for oil well of I and Ⅱ kind of flow units are plugging and water plugging to recovery the remaining oil in the upper oil layers.the treatment measurements for oil well of Ⅲ and Ⅳ kind of flow units are perforations adding and drilling new wells.ARer the implementation of the measures,it is predicted that the ultimate recovery rate will be enhanced 5.1%. |
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| Keywords: | NMR Remaining oil Flow unit Tapping the latent power |
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