Effectiveness of the nuclear magnetic resonance method use for core samples and drilling sludge laboratory petrophysical study

Authors: V.A. Vavilin, A.A. Kunakasov, T.R. Galiev, E.V. Sorokina (KogalymNIPIneft OOO)
NMR method is used for pore space structure changing control, and its fluid distribution, that occurs in modeling of oil field exploitation, and enhanced oil recovery methods. A conclusion can be made about pore space structure changing according to changes of observable core sample relaxivity characteristic. Calculated relaxation curves provide to estimate pore space structure changing after the influence on core sample during laboratories researches, also nature and degree of changing on different steps of researches.


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