基于偶极横波测井资料预测储层压裂缝几何参数  

On Prediction of Reservoir Fracturing Geometric Parameters with Dipole Shear Wave Log Data

作　　者：桂俊川 夏宏泉[1] 钟文俊[2] 弓浩浩[1] 

机构地区：[1]西南石油大学油气藏地质与开发工程国家重点实验室,四川成都610500 [2]中石化西南油气分公司勘探开发研究院,四川成都610041

出　　处：《测井技术》2015年第3期384-389,共6页Well Logging Technology

基　　金：国家重点基础研究发展计划(973)项目子课题(2013CB228003)

摘　　要：利用偶极横波测井资料算出泊松比、弹性模量和最小水平主应力等岩石力学参数,基于IVERSON模型首先估算射孔层段压裂缝延伸高度,通过工区储层各向异性系数与裂缝宽度的回归关系估算裂缝宽度,根据椭球体积模型并结合压裂液的利用率及加砂量估算裂缝的径向延伸长度。将该方法优化编程,用于处理工区压裂前后井的测井资料,对比分析预测结果与实际压裂效果,两者较为一致,表明该方法效果明显,值得推广应用。Fracture is an important channel of communicating producing layer and wellbore, so reservoir capacity is closely related to the sizes of the fractures. With further exploration and development of oil field S, a growing number of production wells need fracturing transformation to obtain higher productivity. Based on IVERSON model, this article utilizes rock mechanics parameters such as Poisson＇s ratio, Young＇s modulus and minimum horizontal stress calculated by DSI log data to estimate the height of fracture firstly; then estimates the fracture width by the regression relationship between the fracture width and reservoir anisotropy coefficient of the work area. Finally, according to the ellipsoidal volume model and combined with the fracturing fluid volume and filled-sand volume to estimate the fracture extension lengths. By optimization and programming, we use this method in processing fractured well logging data in the work area. The predicted results are mainly coincided with the actual fracturing effects. The practical applications show that this method is worth promoting application.

关 键 词：测井解释 偶极横波测井 水力压裂 椭球体积模型 压裂缝长宽高 各向异性 

分 类 号：P631.84[天文地球—地质矿产勘探]