基于流度属性的礁滩储层预测  

Prediction of reef and bank reservoir based on mobility attribute

作　　者：郭旭升[1] 凡睿[1] 文晓涛[2] 

机构地区：[1]中国石油化工股份有限公司勘探分公司,成都610041 [2]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2016年第6期641-647,共7页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家科技重大专项(2011ZX05005-003)

摘　　要：流体的流度与储层的渗透率及流体的黏滞系数有关,基于流度属性可对储层进行预测。流度属性与反射波的振幅随频率的变化率成正比关系,因此可以基于地震资料提取流度属性,并进一步分析储层的渗透率和流体的黏滞性。根据对流度属性的理论研究,提出了利用地震资料提取流度属性的流程,讨论了影响流度属性的关键因素——地层厚度及优势频率,并给出了准确反演地层厚度及获得优势频率的方法。正演模拟和在元坝地区的实例应用证实了该方法对储层预测是有效的。Fluid mobility is proved to be related to permeability of reservoir and viscosity of fluid,and the mobility attribute can be used to predict oil and gas reservoir.Mobility attribute is proportional to the ratio of amplitude with the variation of frequency.It can be obtained on the basis of seismic data and used to further analyze permeability of reservoir and viscosity of fluid.The flow path of how to extract mobility attribute is proposed according to theoretic research on mobility attribute and the key factors of stratum thickness and preferred frequency which affect the mobility attribute is discussed.Meanwhile,methods of how to invert thickness of stratum and how to obtain dominant frequency are presented in the paper.Prediction of reservoir by numerical simulation and practical field application in the Yuanba area prove the validity of this method.

关 键 词：礁滩储层 流度属性 黏滞系数 渗透率 低频 

分 类 号：TE122.24[石油与天然气工程—油气勘探] P631.443[天文地球—地质矿产勘探]