基于叠前地震反演的流体识别方法研究进展  

Research progress of fluid discrimination with prestack seismic inversion

作　　者：印兴耀[1] 曹丹平[1] 王保丽[1] 宗兆云[1] 

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580

出　　处：《石油地球物理勘探》2014年第1期22-34,46,共14页Oil Geophysical Prospecting

基　　金：国家"973"项目(2013CB228604);国家油气重大专项(2011ZX05030-004-002;2011ZX05019-003和2011ZX05009-003-004)联合资助

摘　　要：地震流体识别是指利用地震资料对储层含流体特征进行识别和描述,而地震叠前反演是储层流体识别和评价的有效途径。本文在评述现有地震叠前反演方法的基础上,分析优选储层流体敏感参数的必要性,论述了基于地震岩石物理理论的敏感流体因子的构建和评价方法,探讨了基于数据驱动和模型驱动的地震流体识别方法及其适用条件。理论研究和实际应用均表明:流体有效识别要以流体因子构建及敏感性分析为基础,选择有效的流体敏感参数及评价方法,明确目标储层有效流体因子;以地震反演为技术保障,研发可靠的叠前地震反演策略和适用的反演方法。Seismic fluid discrimination describes the distribution of oil and gas reservoirs underground with seismic data,which is one of the important goals in oil and gas exploration.Pre-stack seismic inversion plays an important role in oil and gas reservoir discrimination and evaluation.Based on the review of development of pre-stack seismic inversion methods,we stress in this paper the necessity of the construction of reservoir or fluid sensitiveparameters,and review some methods of fluid sensitive parameters construction and evaluation. Furthermore,we discuss the fluid discrimination methods based on model-driven and data-driven strategy respectively.Finally,theory and real data tests demonstrate that we should combine the rock physics,fluid sensitive parameters evaluation and seismic inversion technology together to ensure that the fluid type can be discriminated effectively.

关 键 词：叠前反演 流体因子 岩石物理 弹性阻抗 敏感性评价 

分 类 号：P631[天文地球—地质矿产勘探]