摘要
不同的地震反演方法具有不同的技术特点及适用条件,针对当前石油行业常用的基于地质模型的地震反演、约束稀疏脉冲反演、储层特征属性反演、分频反演和地质统计反演等地震反演方法,从基本原理、技术关键、存在的优缺点等角度进行分析,并结合其在不同的区块、层系、储层特征和油气藏类型的应用实例,分析了各种反演方法的技术特点和适用条件。研究结果表明,针对复杂的地质目标,只有通过优选确定适用的地震反演方法,将获得的反演结果与属性分析结合,才能进一步提高储层描述的精度,达到解决复杂地质问题的目的。
Different seismic inversion methods have different technical characteristics and applicable conditions. Seismic inversion methods usually applied in petroleum occupation, such as geological based model inversion, constrained sparse spike inversion, reservoir characteristic attributes inversion, frequency-divided inversion and geological statistics inversion, are analyzed in basic principles, technical keys, advantages and disadvantages. Technical characteristics and applicable conditions of these methods are also analyzed combined with some applying cases in different blocks, series of strata, reservoir feature and reservoir types. Researching results indicate that, in view of complicated geological designation, only proper seismic inversion methods are defined by optimizing, and inversion results obtained are combined with attributes analysis, can enhance the precision of reservoir description, and attain the aim of resolving complicated geological problems.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2012年第4期38-41,113-114,共4页
Petroleum Geology and Recovery Efficiency
关键词
地震反演
反射系数
波阻抗
地震属性
变差函数
声波时差
seismic inversion
reflection coefficient
impedance
seismic attributes
variogram
acoustic time
