【摘要】 核磁共振 (NMR)测井的测量结果基本不受岩性的影响 ,在解释束缚流体和可动流体孔隙度、渗透率、饱和度等储层参数及研究储层孔隙结构特征即孔径分布规律时 ,具有其它测井方法无法比拟的优势。由于核磁共振测井测量的主要是地层孔隙介质中氢核对仪器的贡献 ,所以也可用来判别储层的流体类型 (性质 )。用核磁共振测井判别储层流体性质的方法适应性虽然不及它在确定储层孔隙度时那么好 ,但企望用核磁共振测井资料解决油气水层判别的问题却是众望所归。通过从基础理论分析入手 ,探讨了不同测井方式时储层流体的测井响应特征及其解释方法 ,并结合实际测井资料的分析处理 ,阐明了用核磁共振测井判别储层流体性质的可行性 ,同时也说明了其局限性及适用条件。更多还原

【Abstract】 Lithology does not basically affect the measurement of Nuclear Magnetic Resonance (NMR) Logging. It has more advantages over other logging methods in interpreting such reservoir parameters as porosity of bound and movable fluid, permeability and saturation and analyzing the pore structure. Because its’ measurement is mainly from the H nuclear contribution of formation pore media to the logging instrument, it can be used to determine the fluid’s types. Nuclear Magnetic Resonance Logging(NMRL) can be applied to define the fluid property in the reservoir, though the practicability of this method is not better than that of interpreting porosity of the reservoir, utilization of NMRL information to distinguish oil、gas and water layer is highly expected. Based on the analysis of basic theory, this paper discusses the logging response characteristics andinterpretation methods of different fluid. And then combining the result analysis of practical well logging information , the feasibility, limitation and practicable condition of recognizing the fluid is also explained in the paper.更多还原