【摘要】 从角度道集数据出发,充分利用它们之间的差别,流体信息和骨架信息在尺度和方向上的差别,以及Curve-let变换的多尺度性和多方向性,提出应用角度流体因子属性进行流体识别的方法。参考时移地震数据的互均衡方法提出子波均衡法,对各个角道集数据进行均衡。然后,利用背景场信息(骨架信息)和流体信息在curvelet域分布的不同,将其进行逐步分离,得到目的层处的异常。把角度流体因子应用到模型与实际地震数据中,计算结果证明了其应用价值,可以准确地判定储层的位置及范围。进一步的与其他属性结合,为油藏精细描述提供较为可靠的依据。更多还原

【Abstract】 According to the differences between angle gather data and multiscale and multi-direction characteristics of Curvelet transform,this paper proposes the utilization of angle fluid factor to discriminate different fluids.Models and real seismic data are used to test the method.The result is reliable,and the location and range of the reservoir can be satisfactorily obtained.In combination with other attributes,the method can provide better information for fine description of the reservoir.Making reference to cross-equalization methods of time-lapse seismic data,the wavelet cross-equalization method is used to equalize angle gather data.Then,Curvelet domain fluid anomaly separation technique is used to separate background field information(rock frame information) from fluid information,and the anomaly of the interesting layer can be obtained.更多还原