基于高密度电阻率法的水库除险加固地质勘探研究

Geological Exploration for Reservoir Reinforcement and Risk Mitigation Based on High-Density Resistivity Method

为解决地质复杂性影响勘探可靠性的问题,进行了基于高密度电阻率法的水库除险加固地质勘探研究。基于FlashRES-UNIVERSAL电法勘探系统和高灵敏度全四极采集装置,在确保所有电极的接地电阻均处于小于500Ω状态的前提下,通过连续滚动方式获取高密度电阻率数据。经滤波处理去除虚假点后,计算纵向分辨率比值效应参数与地层电阻参数的拟合度,精确解析地质构成与分布。测试结果显示,该方法对地层分布的勘探结果与实际情况高度一致,误差在0.30m以内,有效提升了勘探结果的可靠性。

To address the issue of geological complexity affecting exploration reliability,a geological exploration method based on high-density resistivity method for reservoir reinforcement and risk mitigation is proposed.Using the FlashRES-UNIVERSAL electrical exploration system and high-sensitivity full-quadrupole acquisition devices,high-density resistivity data is obtained through a continuous rolling method while ensuring that the grounding resistance of all electrodes is below 500Ω.After filtering out false data points,the longitudinal resolution ratio effect parameter and formation resistivity parameter fitting degree are calculated to accurately analyze geological composition and distribution.The test results show that the exploration results of this method for formation distribution are highly consistent with the actual situation,with an error controlled within 0.30m,effectively improving the reliability of the exploration results.