下三叠统飞仙关组三段是四川盆地东部建南地区油气勘探的重点层位.在分析了影响该区飞仙关组三段裂缝发育程度的诸多因素的基础上,应用分形法和构造面曲率法预测了区内与断层和褶皱相关的裂缝的发育情况.根据区内28口井的实际生产情况,进行了相关性检验,应用综合评判法对建南地区储层裂缝进行了综合评价,指出构造裂缝发育程度与研究区内的油气聚集成藏具有较好的正相关性,经实践检验评价结果合理可信.

Fractures quite develop in the Lower Triassic Feixianguan-3 carbonate reservoir that is the target for petroleum exploration in Jiannan area in the east of Sichuan Basin. In accordance with data from 28 producing wells, the extent of development and distribution of the fractures associated with faulting and/or folding is predicated by using fractal and curvature methods. According to the result of comprehensive evaluation, it is suggested that development of the fractured reservoir is preferably positive in correlation with hydrocarbon accumulation at this area. This method of evaluation is proved to be reasonable and believable. The reservoir area favorable for exploration is also suggested.