大庆石油地质与开发2011，Vol.30Issue(3)：27-31,5.DOI:10.3969/J.ISSN.1000-3754.2011.03.006
△logR技术改进及其在烃源岩评价中的应用
IMPROVEMENT OF △LOGR AND ITS APPLICATION IN SOURCE ROCKS EVALUATION
摘要
Abstract
Calculation of organic carbon content in rocks with logging data is an important research field of source rocks evaluation. In the old △logR method, acoustic travel time is overlapped on resistivity curve with a fixed overlapping coefficient, and read the defined basement linc to calculate △logR. The process is tedious and the calculation accuracy is influenced, and subjective definition of organic carbon content leads to noticeable error of background value. The research reveals that the accuracy of organic carbon content is affected by overlapping coefficient of acoustic travel time and resistivity curve, and the reason is explained in theory. Therefore, the old model is improved and automatically selection of overlapping coefficient is realized. Organic carbon content is calculated rapidly and accurately by computer in absence of mature degree parameters and manual definition of organic carbon content background value and basement line. The application of the improved model in Hailaer Basin and Songliao Basin shows that the organic carbon content calculated by computer with the improved method has the highest correlation with the measured organic carbon content, and the method is easy to apply and has great prospect.关键词
烃源岩/测井信息/有机碳含量/△logR/改进/叠合系数Key words
source rock/ logging data/ organic carbon content/ △logR/ improvement/ overlapping coefficient分类
能源科技引用本文复制引用
刘超,卢双舫,黄文彪,王伟明..△logR技术改进及其在烃源岩评价中的应用[J].大庆石油地质与开发,2011,30(3):27-31,5.基金项目
国家自然基金项目(40972101)和黑龙江省普通高等学校新世纪优秀人才培养计划项目(1155-NCET-002)资助. （40972101）
