ABSTRACT Two‐dimensional elastic full waveform inversion was applied to two lines extracted from a spiral three‐dimensional vertical seismic profile data acquired in an oilfield offshore, Abu Dhabi, in the United Arab Emirates. The lines were selected to be parallel and perpendicular to the plane defined by the deviated borehole. The purpose of the inversion was to derive high‐resolution elastic properties of the subsurface. After pre‐processing, the data were band‐pass filtered with a minimum frequency of 3.5 Hz and a maximum frequency of 30 Hz. A sequential inversion approach was used to mitigate non‐linearity. The pre‐processing of the data consisted in the removal of bad traces, followed by amplitude and phase corrections. High‐resolution P‐ and S‐wave velocity models that show good correlations with the available sonic logs were obtained. The results of the inversion suggest that the oilfield consists of a stack of layers with varying lithology, porosity and possibly fluid content.

中文翻译：

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利用垂直地震剖面数据的弹性全波形反演表征碳酸盐岩储层

摘要 二维弹性全波形反演应用于从阿拉伯联合酋长国阿布扎比海上油田采集的螺旋三维垂直地震剖面数据中提取的两条线。这些线被选择为平行和垂直于由偏斜钻孔定义的平面。反演的目的是获得地下的高分辨率弹性特性。预处理后，数据进行带通滤波，最小频率为 3.5 Hz，最大频率为 30 Hz。使用顺序反演方法来减轻非线性。数据的预处理包括去除坏迹，然后是幅度和相位校正。获得了与可用声波测井具有良好相关性的高分辨率 P 波和 S 波速度模型。