|
|||||
|
|
| 特低渗透砂岩油藏渗流特性研究 | |
| 引用本文： | 祝春生,程林松,阳忠华,陈璞.特低渗透砂岩油藏渗流特性研究[J].油气地质与采收率,2008,15(2):102-104. |
| 作者姓名： | 祝春生 程林松 阳忠华 陈璞 |
| 作者单位： | 1. 中国石油大学(北京)石油工程教育部重点实验室,北京,102249 2. 中国石油长庆石油勘探局,采油二处,甘肃,庆城,745100 3. 中国石化河南石油勘探局,油建工程建设有限责任公司,河南,南阳,473132 |
| 摘 要： | 通过分析中国西部某特低渗透油藏岩心相对渗透率的曲线特征,认为特低渗透岩心油相相对渗透率曲线可近似看成"直线型",水相相对渗透率曲线主要为"直线型"和"上凸型".研究结果亦表明:随着渗透率的增大,岩心的束缚水饱和度和残余油饱和度逐渐减小,两相共渗区变宽;无水期驱油效率和最终驱油效率同时增大.对残余油饱和度下水相相对渗透率大于1这类相对渗透率曲线的形成原因进行了初步的理论分析,认为油水启动压力的存在以及岩心的均质程度可能是其产生的主要原因. |
| 关 键 词： | 相对渗透率 束缚水 残余油 驱油效率 渗流特征 特低渗透油藏 |
| 修稿时间： | 2008/2/15 0:00:00 |
Flowing characteristics in extra-low permeability sandstone reservoirs |
|
| Zhu Chunsheng,Cheng Linsong,Yang Zhonghua. MOE Key Laboratory of Petroleum Engineering,Petroleum University of China ,Beijing City,China.Flowing characteristics in extra-low permeability sandstone reservoirs[J].Petroleum Geology and Recovery Efficiency,2008,15(2):102-104. | |
| Authors: | Zhu Chunsheng Cheng Linsong Yang Zhonghua MOE Key Laboratory of Petroleum Engineering Petroleum University of China Beijing City China |
| Abstract: | The relative permeability curves characteristics of a core from an extra-low permeability reservoir in west China was analyzed. The oil-phase curves are approximate straight line, while water-phase curves are straight line and bow-shape in common. With permeability increasing, irreducible water saturation and remaining oil saturation tend to decrease, two-phase region expands gradually, and displacement efficiency in water-free period and at ultimate stage is enhanced. Meanwhile, the cause of forming relati... |
| Keywords: | relative permeability irreducible water remaining oil oil displacement efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《油气地质与采收率》浏览原始摘要信息 | |
| 点击此处可从《油气地质与采收率》下载全文 | |
