叠前AVO反演技术在储层预测中的应用  

APPLICATION OF AVO PRE-STACK INVERSION FOR RESERVOIR PREDICTION

作　　者：唐振国[1,2] 杨秀彬 梁江平[2] 王卓卓[2] 官艳华[2] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [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]大庆庆新油田开发有限责任公司,黑龙江安达151413

出　　处：《大庆石油地质与开发》2014年第2期149-153,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：教育部博士点基金(20095122110002);国家自然科学基金重点项目(41030426);四川省青年科技基金(03ZQ026-046,05JY029-088-2)

摘　　要：储层含油气预测是松辽盆地北部杏西地区葡萄花油层岩性油气藏勘探的难点.在岩石物理分析的基础上,以多属性交会分析为手段,以理论和正演结论为指导,利用AVO反演技术进行岩性和流体预测.研究认为：葡Ⅰ2油层段储层含油气之后其AVO特征为Ⅰ类AVO异常,MuRo反射率属性能够较好地反映岩性的变化,而流体因子反射率属性能够较好地反映流体的变化;利用这两种AVO属性的分析结果,可得到杏西地区葡萄花油层储层含油气性分布,为储层预测和含油气判别提供了有利依据,在实际生产中取得了较好的应用效果.Petroleum-bearing prediction for Putaohua reservoirs in Xingxi area of North Songliao Basin is the diffi- culty for the lithologic hydrocarbon exploration. On the basis of rock physical analysis, by means of multi-attribute crosslink analysis and guided by the theory and forward modeling inclusion, the lithologic and liquid predictions are conducted with the help of AVO inverting technique. The researches show that Type I AVO abnormity in Pu I2 oil interval is indicated after it is enriched with the hydrocarbon, MuRo reflectivity attribute can better reflect the li- thological change, while the reflectivity attribute of the fluid factor can obviously show the change of the fluids ; with the help of the above analyzed results of two AVO attributes, the petroleum-bearing distribution for Putaohua oil reservoirs in Xingxi area can be clarified, thus the favorable evidences are presented for the reservoir prediction and petroleum-beating detection and moreover much better applied results are achieved in the practical operation.

关 键 词：叠前AVO反演 储层 预测 预处理 含油气性检测 流体置换 

分 类 号：TE353[石油与天然气工程—油气田开发工程]