利用高分辨率地震反演研究薄砂岩储层

以地震反演为主要手段,借助高阶统计量算法求取最适合地下实际情况的地震子波进行反演,并利用高阶统计量提取的子波和地震统计方法提取的地震子波分别对塔河油田南部地震资料进行反演。对比反演结果发现,高阶统计量方法提取的子波反演结果分辨率明显提高,提取的子波反演剖面较好地分辨出石炭系顶、底部薄砂岩储层及其横向分布范围,为薄砂岩储层油气藏研究提供了可靠的分析依据。

Study of Thin Sandstone Reservoirs by High-resolution Seismic Inversion

By using the seismic inversion as major means,the seismic wavelet appropriate to in-situ situation is inverted with the aid of high order statistic algorithm,the wavelet extracted by the high order statistics and the wavelet extracted with seismic statistics are used to respectively invert the seismic data obtained in the south of Tahe Oilfield.The inversion result shows that the resolution of the wavelet inversion obtained with the high order statistic method is obviously improved,the sandstone reservoirs and lateral distributional range both on the carboniferous top and bottom are recognized by using the wavelet inversion profile extracted with high order statistics,by which reliable basis is provided for studying the sandstone reservoirs.