摘要
高效增．核磁共振孔隙度和岩性有关．测井技术，１９９８，２２（４）：２９５～２９８核磁共振孔隙度和岩性有关。实验证明核磁共振孔隙度与岩石磁化率及岩石比表面有关。岩石的磁性与其顺磁杂质（铁和锰）的含量有关。粘土矿物和砾岩、变质岩具有高的磁化率，导致大的内部磁场梯度和极短的Ｔ２值。
NMR porosity is influenced by lithology. Experiments demonstrate that NMR porosity is related with magnetic susceptibility and specific surface of the rock.Rock magnetism is strongly correlated with the content of paramagnetic impurities (iron and manganese).Clay minerals as well as conglomerate and metamorphic rock have high magnetic susceptibilities, which results in large internal magnetic gradient and extremely small values of T 2 .
出处
《测井技术》
CAS
CSCD
北大核心
1998年第4期295-298,共4页
Well Logging Technology
关键词
核磁共振测井
孔隙度
岩石性质
nuclear magnetic resonance porosity lithology magnetic susceptibility grain size magnetic gradient
