测井技术2018，Vol.42Issue(1)：65-72,8.DOI:10.16489/j.issn.1004-1338.2018.01.012
江西修武盆地新开岭组梨树窝组页岩含气性测井综合评价
Comprehensive Log Evaluation of Gas in Xinkailing-Lishuwo Shale Formation in Xiuwu Basin,Jiangxi Province
摘要
Abstract
Gas-bearing prediction for different occurrence phases is a key issue for the shale reservoir evaluation and favorable target optimization.T hrough the literature survey and the actual geological conditions of the XiuWu Basin,Jiangxi Province,the shale of the Xinkailing-Lishuwo Formation is taken as an example.Based on the TOC test and the isothermal adsorption experiment of methane,the maximum adsorption gas content in the stratigraphic condition was corrected by using the Langmuir equation.And the maximum storage capacity and maximum storage space of free gas in the stratigraphic condition was obtained by deducting the volume of adsorbed gas from total pore space.In addition,the paper also introduced how to calculate the key parameters of the evaluation model with logging data.The results show that,the predicted values of TOC are in good agreement with the measured values,and the porosity of the NMR logging is consistent with the measured values,where the average content of shale adsorption gas is 0.76 cm3/g,and the average content of free gas is 1.16 cm3/g.The proportion of adsorption gas in the depth of 1 672-1 685 m was more than 60%,and the proportion of free gas in total gas content is generally higher than 50%.The predicted gas content has a certain similarity with the measured gas content in the distribution trend.关键词
测井解释/含气性/等温吸附/修武盆地/新开岭组/梨树窝组Key words
log interpretation/gas-bearing/isothermal adsorption/Xiuw u Basin/Xinkailing for-mations/Lishuwo formations分类
天文与地球科学引用本文复制引用
高凤琳,宋岩,姜振学,陈磊,张欣欣,刘伟伟,程四红..江西修武盆地新开岭组梨树窝组页岩含气性测井综合评价[J].测井技术,2018,42(1):65-72,8.基金项目
国家科技重大专项不同类型页岩气生成机理与富集规律研究(2016ZX05034-001) （2016ZX05034-001）
