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在大量裂缝发育特征的观察和统计工作基础上，结合油田开发动态和古构造发育史分析等，应用岩芯古地磁定向、差应变和波速各向异性等研究方法，结果认为三肇地区扶杨油层发育的裂缝走向以近东西向为主，多具高倾角，并可构成规模较大的主裂缝，其在油田注水开发中起着不可轻视的作用。分析表明，裂缝发育的密度与砂层的厚度成反比，与构造曲率成正比。区域最大水平主应力为北西西向，近东西向裂缝为油田最有效裂缝组系。
Based on the observation and statistics of a large number of fracture development characteristics, combined with the research on the development of oilfields and the analysis of paleotectonic development history, the authors used the research methods such as paleomagnetic orientation, differential strain and anisotropy of wave velocity. The results show that Fuyang The development of fractures in the oil layer is mainly near east-west with many high dip angles, and can form a large-scale main fracture. It plays an indispensable role in the development of oilfield waterflooding. The analysis shows that the density of fracture development is inversely proportional to the thickness of the sand and is proportional to the curvature of the structure. The maximum horizontal principal stress in the region is NWW and the near east-west fracture is the most effective fracture group in the oil field.