Nafta Wiki is on-line public knowledge database in terminology, theory, methodology, engineering and practical cases in Petroleum Engineering and related disciplines.
SPE PetroWiki – Society of Petroleum Engineers
AAPG Wiki – American Association of Petroleum Geologists
SPE Petroleum Abbreviations
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Crain's Petrophysical Handbook by E. R. (Ross) Crain, P.Eng., online at www.spec2000.net, 2018