测井技术2017，Vol.41Issue(5)：528-533,6.DOI:10.16489/j.issn.1004-1338.2017.05.006
基于核磁共振刻度流动单元复杂砂岩储层渗透率建模方法
Permeability Calculation of Complex Sandstone Reservoir Based on Flow Unit Calibrated by NMR Logging
摘要
Abstract
The problems of low calculating precision of flow unit index and unclear physical meaning exist when calculating permeability based on flow unit index for the complex sandstone reservoirs,so the new permeability calculation method based on flow unit calibrated by NMR logging is established.On the basis of analyzing the influence factor of permeability,the reservoir types are determined by flow unit index,permeability of different flow units is calculated restrained by carbonate content.Combining the SDR model and Kozeny-Carman model,the relationship between flow unit index and NMR T2 geometric average is established and the flow unit index is calculated precisely.This method considers the dual influence of matrix mineral and pore structure,combines NMR logging and conventional logging and has the incomparable superiority over conventional multivariate fitting method,SDR model and Timur-Coates model.关键词
岩石物理实验/渗透率/碳酸盐岩/孔隙结构/流动单元指数/核磁共振测井/最优化方法Key words
petrophyscial experiment/permeability/carbonate/pore structure/flow unit index/NMR logging/optimization分类
天文与地球科学引用本文复制引用
范宜仁,严杰,卢志远,邢东辉,周明顺,吴剑锋..基于核磁共振刻度流动单元复杂砂岩储层渗透率建模方法[J].测井技术,2017,41(5):528-533,6.基金项目
国家科技重大专项(2017ZX05039002) （2017ZX05039002）
中央高校基本科研业务费专项资金资助(16CX06048A,16CX05004A) （16CX06048A,16CX05004A）
山东省自然科学基金(ZR2014DQ007) （ZR2014DQ007）
