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Jun 24, 2015 · The primary objectives in NMR logging are measuring T 1 signal amplitude (as a function of polarization), T 2 signal amplitude and decay, and their distributions. The total signal amplitude is proportional to the total hydrogen content and is calibrated to give formation porosity independent of lithology effects.
Jan 1, 2006 · The objective is to explain the basic measurement principles and interpretations needed to understand NMR formation-evaluation techniques and to discuss a few examples of these...
- R. Freedman
Aug 14, 2023 · The basic components of the NMR technique include the “instruments”, “pulse sequences-data acquisition technique”, and the “data processing and interpretation technique”. The NMR logging, just like the NMR in chemistry and MRI in medicine, has the same components, as shown in Figure 1.31.
MR Scanner expert magnetic resonance service makes simultaneous multifrequency measurements using nuclear magnetic resonance (NMR) at multiple depths of investigation (DOIs). A single pass in the wellbore provides total and effective porosity, permeability, and fluid identification and characterization.
Jan 1, 2006 · The objective is to explain the basic measurement principles and interpretations needed to understand NMR formation-evaluation techniques and to discuss a few examples of these methods.
- Robert Freedman
- 2006
Mar 1, 1997 · This paper reviews the physical principles that underlie the applications of NMR logging. NMR logging is sensitive to some important formation properties to which classical logs have no sensitivity. As a result, it has a wide range of potential applications.
Jan 1, 2004 · This publication is a general introduction to common openhole logging measurements, both wire line and MWD/LWD, and the interpretation of those measurements to determine the traditional analytical goals of porosity, fluid saturation, and lithology/mineralogy.
