| 非均质油藏砂体几何形态对水驱开发效果的影响 |
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| 引用本文： | 屈亚光,刘月田,丁祖鹏.非均质油藏砂体几何形态对水驱开发效果的影响[J].油气井测试,2011,20(3):4-6. |
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| 作者姓名： | 屈亚光 刘月田 丁祖鹏 |
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| 作者单位： | 中国石油大学石油工程教育部重点实验室,北京,102249 |
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| 基金项目： | 国家科技重大专项大型油气田及煤层气开发项目"复杂油气田地质与提高采收率技术"(2009ZX05009)研究内容 |
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| 摘 要： | 由于受沉积环境、成岩作用和构造作用的影响,砂体的几何形态表现出非均质性,影响不同注采方式的水驱开发效果。依据陆相沉积油藏砂体展布特点,得到描述砂体几何形态特征的理想模型,建立定注入端和出口端压力的二维两相渗流数学模型,通过数值方法进行差分离散求解,得出砂体宽部注入单位厚度累产油量高于砂体窄部注入;应用油藏数值模拟方法,研究砂体几何形态对注采井网的水驱开发效果,得出注水井位于砂体展布较宽部位而油井位于较窄部位时,水驱前缘推进速度快,油井见水时间短,含水上升速度快,产水量高,定注采压差条件下注水井周围地层压力偏高,日注入量降低,地层泄油效果差,累积产油量少,水驱开发效果差。
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| 关 键 词： | 几何形态 水驱 数值模拟 地层压力 剩余油饱和度 |
The Influence of Sandstone Geometry Shape on Water Flooding Efficiency in Anisotropic Reservoir |
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| Qu Yaguang,Liu Yuetian,Ding Zupeng.The Influence of Sandstone Geometry Shape on Water Flooding Efficiency in Anisotropic Reservoir[J].Well Testing,2011,20(3):4-6. |
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| Authors: | Qu Yaguang Liu Yuetian Ding Zupeng |
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| Affiliation: | Qu Yaguang,Liu Yuetian,Ding Zupeng(Key Laboratory of Petroleum Engineering of the Ministry of Education,China University of Petroleum) |
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| Abstract: | Because of sedimentary environment,diagenesis effect,and tectogenesis effect,the geometric shapes of sandstone show anisotropy,which affect the water flooding efficiency.Firstly,According to distribution characters of sandstone of continental sedimentary reservoir,idealized mode to describe shapes of sandstone can be got.The 2-D and two-phase mathematical mode at certain inlet and outlet pressure is established.By applying discrete and differential numerical method,the cumulative oil production per unit thi... |
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| Keywords: | geometry shape water flooding numerical simulation formation pressure residual oil saturation |
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