NMR logging : principles and applications
OF NMR LOGGING APPLICATIONS AND BENEFITS: Medical MRI -- MRI Logging -- Comparison of the MRIL Tool to other logging tools -- NMR logging raw data -- NMR porosity -- NMR T2 distribution -- NMR free fluid index and bulk volume irreducible -- NMR permeability -- NMR properties of reservoir fluids -- NMR hydrocarbon typing -- NMR enhanced water saturation with resistivity data -- MRIL application examples -- MRIL acquisition data sets -- MRIL response in rugose holes -- NMR logging applications summary -- NMR PHYSICS: Nuclear magnetism -- Polarization -- Pulse tipping and free induction decay -- Spin echo detection -- NMR measurement timing -- FUNDAMENTALS OF NMR PETROPHYSICS: NMR relaxation mechanisms of fluids in rock pores -- Multi exponential decay -- Echo fit for T2 distribution -- Pore size distribution -- Determination of BVI -- MRIL permeability model -- MRIL porosity model -- FUNDAMENTALS OF NMR HYDROCARBON TYPING: NMR properties of hydrocarbons -- NMR hydrocarbon typing -- Oil effects on T2 distributions -- Gas effects on T2 distribution under different conditions -- MRIL TOOL PRINCIPLES: Polarization -- Magnetization tipping and spin echo detection -- Logging speed and vertical resolution -- Depth of investigation -- Multi frequency measurement and RF pulse bandwidth -- Ringing effect -- Signal to noise ratio and running average -- Activations -- Tool configuration
Print Book, English, ©1999
Haliburton Energy Services, Houston, ©1999