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裂缝是低渗透储层的重要储集空间和渗透率的主要贡献者。有关冲积扇砾岩储层中裂缝特征及分布规律预测的研究很少。通过露头、岩心及测井资料分析，研究了小拐油田夏子街组的裂缝特征和控制因素。在区域构造背景相同的情况下，裂缝的发育程度受岩性的严格控制。在细砾岩及砂岩中裂缝最发育、裂缝规模小，密度大；而在中细砾岩及泥岩中裂缝则不发育。裂缝发育程度与地层层速度有密切的关系。通过测井、钻井及地质资料建立裂缝的定量表征模型，借助于地震反演方法及集成化定量储层地质建模新技术，综合使用地质、测井及地震资料，高精度地预测裂缝的发育程度，为进一步开发提供可靠的依据。
Cracks are a major contributor to the important reservoir space and permeability of low-permeability reservoirs. There is little research on the prediction of fracture characteristics and distribution in alluvial fan conglomerate reservoirs. Based on the outcrop, core and logging data analysis, the fracture characteristics and controlling factors of Xiazijie Formation in Xiaowu Oilfield are studied. In the same tectonic setting of the region, the degree of the development of fractures is strictly controlled by lithology. The finest conglomerate and sandstone have the most developed fractures, with small scale and large density. In middle-small conglomerate and mudstone, the fractures are not developed. The degree of fracture development is closely related to the formation velocity. Through the well logging, drilling and geological data, a quantitative characterization model of fractures is established. By means of seismic inversion method and integrated quantitative geological modeling of reservoir technology, geologic, well logging and seismic data are comprehensively used to predict fracture development with high accuracy Level, to provide a reliable basis for further development.