变尺度分形技术在裂缝预测和储层综合评价中的应用  

Application of Variable Size Factal Technology to Fracture Prediction and Comprehensive Reservoir Evaluation

作　　者：刘莉莉[1] 赵中平[1] 李亮[1] 陈文龙[1] 何右安[1] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院

出　　处：《低渗透油气田》2007年第3期81-84,66,共5页

摘　　要：利用常规测井资料声波时差（AC）数据，运用分形几何中的变尺度分析技术，结合其他测试资料识别，预测了长庆铁边城油田元48井区长4＋5 2^1-2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，结合地层系数对该区长4＋5 2^1-2储层进行了综合分类评价，分类结果与实际生产吻合性好。研究成果对低渗储层裂缝描述具有一定的借鉴意义。Distribution of natural fractures in Chang4＋5 2 reservoirs of the Well Yuan-48 area of Tiebiancheng oilfield of Changqing has been predicted by using the interval transit time （AC） data from conventional well-logging, and variable size analysis of fractal geometry, and combining the other testing data identification. Relationship between the fracture development degree and initial deliverability of the well is discussed. Chang4 ＋52^1-2 reservoirs of the area are comprehensively classified and evaluated in the light of distribution of fractures-relativelydeveloped zones, combining permeability-thickness product. Results of the classification accord well with the actual production. The research result can be used for reference in the description of fractures in low-permeability reservoirs.

关 键 词：声波时差 变尺度分形技术 天然裂缝 储层分类 

分 类 号：P618.130.2[天文地球—矿床学] TP391.41[天文地球—地质学]