石油实验地质2016，Vol.38Issue(3)：389-394,6.DOI:10.11781/sysydz201603389
核磁共振与高压压汞实验联合表征致密油储层微观孔喉分布特征
Characterization of micro pore throat radius distribution in tight oil reservoirs by NMR and high pressure mercury injection
摘要
Abstract
Through the design of an algorithm, the conversion coefficient of NMR T2 relaxation time and pore throat radius was optimized by using the pore throat distribution data in tight oil reservoirs obtained from mercury injection experiments. The precision of the NMR characterization of pore distribution was improved. Methods were used in the characterization of Cretaceous tight oil pore radius distribution in the southern Songliao Basin. Pore radius of samples with oil saturation less than 10% were concentrated in the 10-300 nm range, while those with oil saturation between 10% and 40% were mainly 20-1000 nm. Unlike these samples, the pore radius of samples with oil saturation greater than 40%were concentrated in the 20-3000 nm range.Experimental results showed that the development of different levels of microporosity in tight oil reservoirs controlled the oiliness properties.关键词
核磁共振/高压压汞/微纳米孔喉/孔喉分布/致密油Key words
NMR/highpressure mercury/micro?and nano?pores/radius distribution/tight oil分类
能源科技引用本文复制引用
公言杰,柳少波,赵孟军,谢红兵,刘可禹..核磁共振与高压压汞实验联合表征致密油储层微观孔喉分布特征[J].石油实验地质,2016,38(3):389-394,6.基金项目
国家油气重大专项(2016ZX05003-002)和中国石油天然气股份有限公司科学研究与技术开发项目(2016B-0502)资助. （2016ZX05003-002）
