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