阵列感应测井斜井信号处理方法研究

A method for processing dipping signals of multiarray induction logs

信号处理的目的是将不必要的环境影响消除掉,斜井信号处理的主要任务是消除由倾斜角所引起的环境影响。倾斜影响包括体积项影响和电荷项影响,斜井校正即消除体积项影响和电荷项影响。文章首先从阶跃模型中提取斜井响应函数,然后利用最优化的方法设计能够同时滤除体积项和电荷项影响的二维自适应滤波器,消除测量信号的倾斜影响。

The purpose of signal processing is to eliminate unnecessary environmental impact.The main task of dipping signal processing is to eliminate the environmental impact caused by the dipping angle.The influence of dipping effects contains volume items and electric charge items.Dipping correction is to eliminate the impact caused by volume items and electric charge items.This paper begins from extracting the inclined response function from the step model,then uses optimization method to design two-dimensional adaptive filter which can filter both volume items and charge items,meanwhile,eliminate the dipping effects on the measured signals.