井约束变砂模式识别法的应用  

Application of Different Sand Model at Well Restriction

作　　者：陈可为[1] 王雅峰[2] 孟祥军[2] 秦春光[3] 

机构地区：[1]同济大学,上海200092 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]大庆油田有限责任公司第二采油厂,黑龙江大庆163414

出　　处：《大庆石油地质与开发》2002年第1期72-74,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：根据徐家围子—丰乐地区葡萄花油层的实际地质分析资料 ,通过建立探井控制区内代表沉积环境的声波与密度背景值测井曲线 ,在该区地质沉积环境条件约束下构建了代表储层内不同砂层厚度和不同砂层组合的地质模型。在此基础上 ,对这些地质模型进行正演并将其转换成地震响应模型 ,最后采用滑动时窗对比法 ,将这些地震响应模型与目的层段内的实际地震道进行多参数对比 ,以相似系数最大为准则将实际地震道反演成地质模型 ,从而达到预测储层内砂体分布的目的 。Based on practical geological analysis data of Putaohua reservoir in Xujiaweizi Fengle area, through acoustic and density logging curves representing depositional setting in exploration well controlling area, a geological model representing different thickness of sand zone and different sand zone assembly is built up at geological depositional setting condition restriction. And then these geological models are forwarded and converted to seismic response models. At last sliding time window comparison method is used to correlate these models to practical seismic traces of the target intervals, reversing these traces to geological models according to maximum similar coefficient and then predicting sand body distribution of the reservoir, the practical results are better.

关 键 词：地震正演 地震道 白噪 储层预测 相似系数 储层 地质模型 地震信号 井约束变砂模式识别法 

分 类 号：P618.130.8[天文地球—矿床学] P631.44[天文地球—地质学]