变尺度分形技术在裂缝预测和储层评价中的应用

Application of the variable scale fractal technique in fracture prediction and reservoir evaluation

刘丽丽 赵中平 李亮 陈文龙 何右安

Liu Lili Zhao Zhongping Li Liang Chen Wenlong He You'an

利用声波时差(AC)数据与其他测井资料,运用分形几何中的变尺度分析技术,预测了长庆铁边城油田元48井区长4+5储层的天然裂缝分布,并探讨了裂缝发育程度与油井初期产能的关系.根据裂缝相对发育区的分布特征及其地层系数,对该区长4+5储层进行了综合分类评价,分类结果与实际生产吻合性好.此研究成果对低渗储层裂缝描述具有一定的借鉴意义.

By using the acoustic travel time(AC) data,other test data and variable scale fractal techniques,the distribution of natural fractures in Chang 4+5 reservoirs of Yuan 48 wellblock in Tiebiancheng oilfield was predicted,and the relationship between the fracture development degree and initial deliverability of oil wells was also discussed.Based on the distribution characteristics of zones with relatively well-developed fractures and their formation conductivity,Chang 4+5 reservoirs are comprehensively classified and evaluated,and the results are in accord with the actual production data.The research results can be used for reference in the fracturedescription in low-permeability reservoirs.

10.11743/ogg20080105