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二维核磁共振评价页岩流体饱和度实验仿真

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二维核磁共振(2D NMR)T1-T2测量在页岩油勘探中具有重要优势,但其数据处理与解释过程复杂,涉及抽象的理论知识.设计了一套基于Matlab图形用户界面的2D NMR T1-T2谱储层流体识别与饱和度评价实验仿真.仿真系统包括地层T1-T2谱模型构建、回波数据正演、回波数据反演以及流体识别与饱和度评价模块.通过输入不同参数,模拟得到页岩地层的T1-T2谱模型、回波数据、T1-T2谱反演结果以及页岩储层流体识别与饱和度评价结果.实验以直观、实用的方式向学生展示了基于2D NMR T1-T2谱的页岩储层流体识别与饱和度评价过程,增强学生对NMR数据处理与解释方法的理解,提高NMR教学效果.
Simulation Experiment of Shale Fluid Saturation Evaluation Using Two-dimensional Nuclear Magnetic Resonance
Two-dimensional nuclear magnetic resonance(2D NMR)T1-T2 measurement offers significant advantages in shale oil exploration.However,the procedures of 2D NMR data processing and interpretation,involving abstract theoretical knowledge,are complicated.To address this,a MATLAB GUI-based simulation experiment is developed for reservoir fluid identification and saturation evaluation using 2D NMR T1-T2 map.The experiment encompasses four modules:construction of the geological T1-T2 map model,forward simulation of echo data,inversion of echo data,and fluid identification and saturation evaluation.By inputing different parameters in the simulation,one can obtain the simulation outcomes including T1-T2 map models,echo data,T1-T2 map inversion results,and shale reservoir fluid identification and saturation evaluation outcomes.The simulation experiment intuitively and practically demonstrates the process of shale reservoir fluid identification and saturation evaluation based on 2D NMR T1-T2 map,enhances students'comprehension of NMR data processing and interpretation techniques,and elevates the overall efficacy of NMR instruction.

nuclear magnetic resonance(NMR)Matlab GUIfluid identificationsaturation evaluation

谢然红、徐陈昱、郭江峰、金国文、付建伟

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中国石油大学(北京)地球物理学院,北京 102249

核磁共振 Matlab图形用户界面 流体识别 饱和度评价

北京市高教学会项目

MS2022052

2024

实验室研究与探索
上海交通大学

实验室研究与探索

CSTPCD北大核心
影响因子:1.69
ISSN:1006-7167
年,卷(期):2024.43(3)
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