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CN107810431B 校准地震检波器阵列的深度的方法 有权

校准地震检波器阵列的深度的方法
摘要：
一种地震检波器阵列具有多个地震检波器通道，每一地震检波器通道耦合到地层中的局部环境。确定每一地震检波器通道的地层物质相关响应，且使所述响应与所述对应的地震检波器通道的假设深度相关联。将作为所述假设深度的函数的所述地层物质相关响应与作为沿着钻孔的深度的函数的所述地层的至少一个岩石物理参数的独立深度测井曲线进行比较。基于所述比较，确定所述假设深度和独立深度测井曲线中的深度之间的一组时滞，所述一组时滞提供地层物质相关响应和地层的至少一个岩石物理参数的独立深度测井曲线之间的最佳相关性。因此，每一地震检波器通道的所述假设深度能够与所述独立深度测井曲线中的对应深度比对。
摘要（英）：

A seismic receiver array has a plurality of seismic receiver channels, each coupled to a local surrounding in an earth formation. A formation-material-dependent response of each seismic receiver channel is determined, and associated with an assumed depth for the corresponding seismic receiver channel. The formation-material-dependent responses as function of the assumed depth are compared to an independent depth log of at least one petrophysical parameter of the earth formation as a function of depth along the borehole. Based on the comparison, a set of lags between said assumed depth and depth in the independent depth log is determined, that provides the best correlation between the formation-material-dependent response and the independent depth log of the at least one petrophysical parameter of the earth formation. The assumed depth of each seismic receiver channel can thus be aligned with corresponding depths in the independent depth log.

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