油藏裂缝方向表征及渗透率各向异性参数计算
|
摘要
传统裂缝方位角与倾角定义不能全面而方便地体现裂缝对导流的各向异性影响。通过分析裂缝各向异性对导流影响效果,给出了新的裂缝方位角及裂缝倾角定义,基于此定义提出了裂缝渗透率各向异性参数计算方法,该方法可以利用测井数据计算各向异性渗透率主方向和各方向主值之比。针对实际裂缝性油藏的计算表明,该方法简单实用。该方法将静态裂缝表征与裂缝对导流的动态影响相结合,弥补了现行裂缝性油藏渗透率描述计算方法的一个缺陷。
The traditional definition of fracture azimuth and fracture dip can not fully and expediently reflect the effect of fracture anisotropy on fluid diversion.By analyzing results of this effect,we made a new definition for fracture azimuth and fracture dip,and on the basis of this definition,a new approach was proposed to calculate anisotropic parameters of fracture permeability,which include principal orientations and ratios of individual orientation principal values of the anisotropic permeability.This approach was proved to be simple and applicable by calculating the anisotropic permeability of fractures in a real fractured reservoir because it combines the characterization of static fractures and the dynamic effect of fractures on fluid diversion together and makes up a limitation of the current method in describing and calculating the permeability of fractured reservoirs.
The traditional definition of fracture azimuth and fracture dip can not fully and expediently reflect the effect of fracture anisotropy on fluid diversion.By analyzing results of this effect,we made a new definition for fracture azimuth and fracture dip,and on the basis of this definition,a new approach was proposed to calculate anisotropic parameters of fracture permeability,which include principal orientations and ratios of individual orientation principal values of the anisotropic permeability.This approach was proved to be simple and applicable by calculating the anisotropic permeability of fractures in a real fractured reservoir because it combines the characterization of static fractures and the dynamic effect of fractures on fluid diversion together and makes up a limitation of the current method in describing and calculating the permeability of fractured reservoirs.
引文
[1]Warren J E,Root P J.The behavior of naturally fractured reservoirs[J].Society of Petroleum Engineers Journal,1963,3(3):245-252.
[2]Long J C S.A model for steady state flow in random three-dimen-sional networks of disc-shaped fractures[J].Water Resources Re-search,1985,21(10):1105-1115.
[3]尹志军,黄述旺,陈崇河.用三维地震资料预测裂缝[J].石油勘探与开发,1999,26(1):78-80.Yin Zhijun,Huang Shuwang,Chen Chonghe.Fracture determina-tion by means of3dimensional seismic date[J].Petroleum Explo-ration and Development,1999,26(1):78-80.
[4]张吉昌,田国清,刘建中.储层构造裂缝的分形分析[J].石油勘探与开发,1996,23(4):65-67.Zhang Jichang,Tian Guoqing,Liu Jianzhong.A fractal analysis onstructural fractures of reservoirs[J].Petroleum Exploration andDevelopment,1996,23(4):65-67.
[5]孙业恒,时付更,王成峰,等.低渗透砂岩油藏储集层双孔双渗模型的建立方法[J].石油勘探与开发,2004,31(4):79-82.Sun Yeheng,Shi Fugeng,Wang Chengfeng,et al.Modeling of du-al-porosity and dual-permeability for low-permeability sandstonereservoir[J].Petroleum Exploration and Development,2004,31(4):79-82.
[6]聂立新,黄炳家,王才经.各向异性天然裂缝油藏裂缝方位的确定[J].石油大学学报:自然科学版,1997,21(6):39-41.Nie Lixin,Huang Bingjia,Wang Caijing.Determination of orienta-tion of the fractures in an anisotropic naturally fractured reservoir[J].Journal of the University of Petroleum,China:Edition of Nat-ural Science,1997,21(6):39-41.
[7]吴忠宝,胡文瑞,宋新民,等.天然微裂缝发育的低渗透油藏数值模拟[J].石油学报,2009,30(5):727-734.Wu Zhongbao,Hu Wenrui,Song Xinmin,et al.Numerical simula-tion on low-permeability reservoir with abundant natural micro-fractures[J].Acta Petrolei Sinica,2009,30(5):727-734.
[8]姚军,王子胜,张允,等.天然裂缝性油藏的离散裂缝网络数值模拟方法[J].石油学报,2010,31(2):284-288.Yao Jun,Wang Zisheng,Zhang Yun,et al.Numerical simulationmethod of discrete fracture network for naturally fractured reser-voirs[J].Acta Petrolei Sinica,2010,31(2):284-288.
[9]李鄂荣,张义勋.地质大辞典I:普通地质、构造地质分册(下册)[M].北京:地质出版社,2005:495-930.Li Erong,Zhang Yixun.Geology dictionary(I):General geology,structural geology volume[M].Beijing:Geological PublishingHouse,2005:495-930.
[2]Long J C S.A model for steady state flow in random three-dimen-sional networks of disc-shaped fractures[J].Water Resources Re-search,1985,21(10):1105-1115.
[3]尹志军,黄述旺,陈崇河.用三维地震资料预测裂缝[J].石油勘探与开发,1999,26(1):78-80.Yin Zhijun,Huang Shuwang,Chen Chonghe.Fracture determina-tion by means of3dimensional seismic date[J].Petroleum Explo-ration and Development,1999,26(1):78-80.
[4]张吉昌,田国清,刘建中.储层构造裂缝的分形分析[J].石油勘探与开发,1996,23(4):65-67.Zhang Jichang,Tian Guoqing,Liu Jianzhong.A fractal analysis onstructural fractures of reservoirs[J].Petroleum Exploration andDevelopment,1996,23(4):65-67.
[5]孙业恒,时付更,王成峰,等.低渗透砂岩油藏储集层双孔双渗模型的建立方法[J].石油勘探与开发,2004,31(4):79-82.Sun Yeheng,Shi Fugeng,Wang Chengfeng,et al.Modeling of du-al-porosity and dual-permeability for low-permeability sandstonereservoir[J].Petroleum Exploration and Development,2004,31(4):79-82.
[6]聂立新,黄炳家,王才经.各向异性天然裂缝油藏裂缝方位的确定[J].石油大学学报:自然科学版,1997,21(6):39-41.Nie Lixin,Huang Bingjia,Wang Caijing.Determination of orienta-tion of the fractures in an anisotropic naturally fractured reservoir[J].Journal of the University of Petroleum,China:Edition of Nat-ural Science,1997,21(6):39-41.
[7]吴忠宝,胡文瑞,宋新民,等.天然微裂缝发育的低渗透油藏数值模拟[J].石油学报,2009,30(5):727-734.Wu Zhongbao,Hu Wenrui,Song Xinmin,et al.Numerical simula-tion on low-permeability reservoir with abundant natural micro-fractures[J].Acta Petrolei Sinica,2009,30(5):727-734.
[8]姚军,王子胜,张允,等.天然裂缝性油藏的离散裂缝网络数值模拟方法[J].石油学报,2010,31(2):284-288.Yao Jun,Wang Zisheng,Zhang Yun,et al.Numerical simulationmethod of discrete fracture network for naturally fractured reser-voirs[J].Acta Petrolei Sinica,2010,31(2):284-288.
[9]李鄂荣,张义勋.地质大辞典I:普通地质、构造地质分册(下册)[M].北京:地质出版社,2005:495-930.Li Erong,Zhang Yixun.Geology dictionary(I):General geology,structural geology volume[M].Beijing:Geological PublishingHouse,2005:495-930.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心