激发极化弛豫时间谱测井仪探测特性理论分析  

THE NUMERICAL ANALYSIS ON THE RESPONSE OF INDUCED POLARIZATION RELAXATION TIME SPECTRA WELL LOGGING

作　　者：丁柱[1] 王伟男[1] 

机构地区：[1]大庆钻探工程公司测井一公司,黑龙江大庆163412

出　　处：《物探化探计算技术》2009年第2期158-160,共3页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：大庆测井公司提出具有自主知识产权的激发极化弛豫时间谱测井方法,并研制出了仪器原理样机。这里利用数值分析技术计算了仪器的探测特性。对于仪器分辨率,以简化井眼模型为基础,利用格林函数得出了仪器层厚响应的计算公式,并将计算结果与自然电位测井层厚响应对比,给出仪器的定性分辨率为0.4 m;对于仪器的探测深度,利用有限元数值模拟方法得到地层中电位分布,并与核磁共振仪器相类比,得出仪器探测深度为0.75 m。The Relaxation Time Spectra Well Logging technology is a new application of rock induced polarization phenomenon. A prototype tool is developed based on the principle. The response characteristics of vertical resolution and investigation depth of this tool are analyzed through numerical simulations. In analogy to the definition of SP well logging and magnetic resonance well logging in resolution and investigation depth respectively, the vertical resolution and the investigation depth are determined in 0.4 m and 0.75 m, respectively, which are in accordance with simulation results.

关 键 词：激发极化 弛豫时间 分辨率 探测深度 

分 类 号：P631.324[天文地球—地质矿产勘探]