【摘要】 各向异性介质储层中波场特征的研究,有利于对多波资料的准确解释。在弹性波方程基础上,结合数值模拟技术与AVO技术,对多种介质模型和第二类含气砂岩储层模型进行数值模拟与波场特征描述。以表征介质各向异性程度的Thomsen参数为出发点,研究各参数对地震波场动力学和运动学特征的影响,并对第二类含气砂岩介质中模拟得到的正演记录,以及各向异性参数对波场的影响程度进行分析,进一步加深了对该类储层各向异性特征的认识,这为各向异性介质中的参数反演与地震资料解释提供了有力的参考依据。更多还原

【Abstract】 The Research of wave fields characteristics facilitated to the accurate interpretation of multi-wave data.Based on the the elastic wave equation,this paper combined the numerical simulation technoque with AVO technique to forward and describe the wave fields characteristics of the seismic wave in various media models and the second-class gas-bearing sandstone reservoir.It started with the study of Thomsen parameters that characterized the degree of the anistropic,researched the influences of every parameter on characteristics of seismic wave,analyzed the forwarding record and the influence degree of the anistropic parameters in the second-class gas-bearing sandstone medium,which further deepened the cognition of the anistropic characteristics in the reservior,and provided a convincing basis for the anisotropic parameter inversion and seismic data interpretation.更多还原