介绍了利用核磁共振测井数据对油层定性识别的3种方法:根据储集层流体NMR纵向弛豫时间T发展起来的双T法,主要包括差谱法和时域分析法.根据各相流体扩散系数D的不同而发展起来的双TE法,即增强扩散法.NMR测井数据和常规测井相结合的方法,主要包含与电阻率结合方法MRIAN,以及定量分析中计算含油饱和度的方法.根据以上几种方法,针对核磁测井在油层中的响应特征进行分析,通过不同识别方法的原理、优势特色、使用条件等的对比分析,定性与定量地对油层的识别方法进行了相应的总结.%To Introduce three methods for quantitative identify oil reservoir by nuclear magnetic resonance logging data:double Tw method base on T1 what reservoir fluid NMR longitudinal relaxation time,including the difference spectrum method(DSM) and time domain analysis method(TDA).Double TE method base on the difference of D what fluid diffusion coefficient,including enhanced diffusion method (EDM).Combined NMR logging and conventional well-logging,mainly including the resistivity combination method(MRIAN).And method for calculating oil saturation in quantitative analysis.According to the above methods,the response characteristics of oil reservoir by NMR logging are analyzed,the qualitative and quantitative identification methods of oil reservoir are summarized by comparison and analysis what the principles,advantages and conditions of different methods.
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