核磁共振测井在川西低孔隙度低渗透率储层中的应用

The Application of the NMR Logging to Low Porosity and Permeability Reservoir in West Sichuan

以核磁共振岩心实验标定为依据,充分结合谱信息的分布特征,并借助测试资料对核磁共振测井在川西低孔隙度低渗透率储层中的评价技术进行了深入研究,其结果表明,核磁共振测井较易剔除非储层,能够提供可靠的储层参数,较为准确判别储层流体性质,应用效果较好,提高了低孔隙度低渗透率储层的测井解释符合率。

The application of the NMR technology has played a very important role in evaluation of the low porosity and permeability reservoir in western Sichuan, Based on the NMR core tests data and combined with the spectrum signal distributing and testing data, researched is NMR logging evaluation technology for low porosity and low permeability reservoir in western Sichuan. The results show that the NMR logging can provide appropriate reservoir parameters for real res- ervoir and accurately identify reservoir fluid property, so, application effect is better. Moreover, it improves interpretation accurate rate for low porosity and low permeability reservoir and pro- vides technical support for exploitation in the tight clastic rocks in west Siehuan area.