【摘要】 本文借助于非正交小波变换优良的时间域与频率域局部化特性,将基于非正交Gabor-Morlet小波变换的时频分析方法引入到地震波吸收衰减分析技术中,并论述了当地震波通过石油、天然气聚集带时,地震波的高频成分会被吸收,从而导致高频能量的急剧衰减。文中应用这一理论特性,对TZ45井区缝洞型碳酸盐岩储层进行了预测,预测结果跟实际钻井资料非常吻合,取得了良好的预测效果,证明了地震波吸收衰减技术是预测缝洞型碳酸盐岩储层的一种有效手段。更多还原

【Abstract】 Based on excellent localization property in time domain and frequency domain for non-orthogonal wavelet transform, time-frequency analysis method of the non-orthogonal Gabor-Morlet transform was brought to seismic wave Absorption and attenuation analysis, it is stated in this paper that when seismic wave propagates through oil & gas reservoirs, the high frequency component will be Absorbed, thus the high frequency energy will rapidly attenuate. By applying the theoretical characteristics the prediction was conducted for the fracture-vug carbonate reservoir in TZ45 well zone, the related results show that the prediction is successful and excellent, matching the drilling results. In this paper it is demonstrated that seismic wave Absorption and attenuation technology is an effective mean to predict the fracture-vug carbonate reservoir.更多还原