测井技术2017，Vol.41Issue(6)：671-675,5.DOI:10.16489/j.issn.1004-1338.2017.06.008
基于钾含量校正的黏土矿物分析与低电阻率识别应用
Application of Clay Mineral Analysis and Low Resistance Identification Based on Potassium Content Correction
摘要
Abstract
Clay mineral is an important part of reservoirs ,which content and type have great influence on the oilfield exploration and development .Natural gamma ray spectrometry logging can detect the formation of Uranium (U) ,Thorium (Th) and Potassium (K) ,and the formation of clay mineral types can be determined by Th—K crossplot .Due to the K content is often affected by potassium feldspar ,it cannot correctly indicate the clay mineral formation .The K content curve is corrected ,and the calibration results are in good agreement with the core analysis results .Based on Th—K crossplot , the types of clay minerals are accurately identified . The calculation model of clay mineral type content is established by stratified regression method . These models are applied to calculate the clay content in CFD oilfield ,and the calculated results are in good agreement with the core analysis results .The causes of low resistivity oil reservoirs in CFD oilfield are analyzed ,which provides a reliable basis for the identification of low resistivity reservoir .关键词
自然伽马能谱测井/黏土矿物类型/K含量曲线的校正/交会图/低电阻率油层Key words
natural gamma ray spectrometry logging/clay mineral type/K content correction/crossplot/low resistivity reservoir分类
天文与地球科学引用本文复制引用
郑炀,崔云江,陆云龙,关叶钦..基于钾含量校正的黏土矿物分析与低电阻率识别应用[J].测井技术,2017,41(6):671-675,5.基金项目
中国海洋石油总公司重大专项渤海典型低孔低渗油气藏勘探开发关键技术研究及实践(CNOOC-KJ 125 ZDXM 07 LTD 01 TJ) （CNOOC-KJ 125 ZDXM 07 LTD 01 TJ）
