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公开(公告)号：US11815481B2
公开(公告)日：2023-11-14
申请号：US16823948
申请日：2020-03-19
Inventor： Hubert E. King , Pavel Kortunov , Harry W. Deckman , Shreerang S. Chhatre , Hemantkumar R. Sahoo , Antonio S. Buono
CPC classification number: G01N24/081 , G01R33/44 , G01V3/14 , G01V3/38 , G01R33/34092
Abstract: A method for determining the porosity of a core sample can include: saturating a core sample with a nuclear magnetic resonance (NMR) saturation fluid, wherein the core sample has a permeability of 100 milliDarcy (mD) or less, to achieve a saturated core sample; taking a NMR measurement of fluids in the saturated core sample; determining a porosity of the core sample based on a correlation between the NMR measurement and a NMR signal to fluid volume calibration.
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