【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。更多还原

【Abstract】 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.更多还原