文档介绍：波谱学杂志
第38卷第2期 Vol. 38 No. 2
2021年06月 Chinese Journal of Magnetic Resonance Jun. 2021
Chinese J Magn Reson, 2021,38(2): 215-226 doi:
利用核磁共振资料定量评价页岩孔隙结构
孟 昆12,王胜建,*2 薛宗安2,侯瑞卿3,肖 亮1
（北京），北京100083； ，北京100083；
公司，山东东营257064
摘要：页岩气储层的孔隙结构复杂且非均质性较强，
层孔隙结构的定量评价方法，本文选取了鄂西宜昌地区陡山沱组二段20块岩心， ms的回波间隔开展饱含
盐水状态下的核磁共振（NMR），对込谱进行了多重分形特征分析，提取了对页岩气储层孔隙结构
较敏感的参数，并建立了基于最小与最大广义分维数差值（Q遇2唤）和谱宽（《a）划分页岩气储层类型的方法及标
、指导开发选层等具有重要意义.
关键词：页岩气储层；核磁共振；孔隙结构；低回波间隔；多重分形理论
中图分类号：P631 文献标识码：A
Quantitative Evaluation of Shale Pore Structure Using Nuclear
Magnetic Resonance Data
MENG Kun1'2, WANG Sheng-jiar^* , XUE Zong-art1, HOURui-qin^, XIAO Lian^
1. China University of Geosciences, Beijing 100083, China; 2. Oil & Gas Survey, China Geological Survey, Beijing 100083, China; 3. Geological
Logging Company Sinopec Shengli Petroleum Engineering Coiporation Limited, Dongying 257064, China
Abstract: The pore structure of shale gas reservoir is complex and heterogeneous, leading to great challenges in reservoir
characterization and effectiveness evaluation. In order to establish a quantitative evaluation method for pore structure of the
shale gas reservoir, 20 cores of the second member of Doushantuo Formation in Yichang area, western Hubei were selected as
the experimental san^le. An echo interval of ms was used to carry out nuclear magnetic resonance (NMR) experiments
under 100% salt water saturation. The obtained T2 spectra were analyzed with the multifractal characteristics method, and the
parameters sensitive to the pore structure