Abstract
This chapter discusses the principles of borehole NMR tools, including the wireline NMR tool, logging while drilling NMR tool, and the NMR fluid analyzer. The corresponding key issues, such as vertical resolution, depth of investigation, signal-to-noise ratio, features of magnets and antennas, the signal flow of measurement and principles of electronics, and basic applications are demonstrated.
Publisher
Royal Society of Chemistry
Reference47 articles.
1. Nuclear magnetism logging;Brown;Pet. Trans. AIME,1960
2. Proton relaxation in crude oils;Brown;Nature,1961
3. Remote (Inside-out) NMR. III. Detection of magnetic resonance in a remotely produced region of homogeneous magnetic field;Jackson;J. Magn. Reson.,1980
4. A new multiband generation of NMR logging tools;Prammer,1998
5. An improved NMR tool design for faster logging;Mckeon,1999