摘要
介质的孔隙度、含气饱和度等是影响地震波振幅随炮检距变化的重要因素。在已知含气饱和度和泊松比变化关系的基础上,应用Wyllie公式,对不同孔隙度情况下的砂岩介质做变含气饱和度正演模型研究,并通过P、G交会图分析它们的AVO响应特征,使以往的AVO定性解释变为半定量化,从而更好地为AVO反演服务。
The Porosity and fluid saturate are the singificant factors that effect on amplitude variation with offset of seismic wave in the medium.Based on the kmown relationship of the Poisson ratio and gas saturate,we imitate different fluid saturation AVO models in sandstone which has different porosity using Wyllie formula and analyze those parameters to know how they affect AVO attributive parameter using P、G cross plot in this paper ,which change AVO qualitatively interpretation to half quantiatively in order to give better service for AVO interpertation .
出处
《断块油气田》
CAS
2005年第1期19-20,i002,共3页
Fault-Block Oil & Gas Field
