公开(公告)号：US20130262070A1

公开(公告)日：2013-10-03

申请号：US13434909

申请日：2012-03-30

申请人： Paul Daniel Vincent ,  Steven Alvin Bahret ,  Louis Paul Herbert

发明人： Paul Daniel Vincent ,  Steven Alvin Bahret ,  Louis Paul Herbert

IPC分类号： G06G7/48

CPC分类号： G01V1/306 ,  G01V2210/6169 ,  G01V2210/622

摘要： A system and computer-implemented method for characterizing a subsurface reservoir is presented. The method includes receiving seismic data and at least one migration velocity model representative of the subsurface reservoir and well logs representative of a geologic region similar to the subsurface reservoir; analyzing the well logs to determine regional trends that differentiate at least two of porous sands, cemented sands, and shales; inverting the seismic data to obtain a p-impedance model and an s-impedance model; predicting a gross sand volume from a ratio of the p-impedance to the s-impedance; and determining a porous sand volume from the gross sand volume through a depth dependent cutoff for cemented sand p-impedance values.

摘要翻译： 提出了一种用于表征地下储层的系统和计算机实现的方法。 该方法包括接收地震数据和代表地下储层的至少一个迁移速度模型和代表与地下储层相似的地质区域的测井; 分析测井以确定区分多孔砂，砂土和页岩中的至少两种的区域趋势; 反演地震数据以获得p阻抗模型和s阻抗模型; 从p阻抗与s阻抗的比率预测总砂体积; 以及通过深度依赖的截止值确定来自总砂体积的多孔砂体积，用于胶结砂p阻抗值。