CPC G01N 24/081 (2013.01) [G01R 33/448 (2013.01); G01R 33/56509 (2013.01)] | 3 Claims |
1. A method for measuring oil-water distribution using DNP-MRI, comprising:
(1) adding a free radical for DNP-enhanced NMR signal of a water phase or an oil phase in a sample comprising oil and water;
(2) performing an MRI on the sample and collecting an MRI image of sample without DNP enhancement;
(3) applying microwave excitation for a DNP-MRI under same MRI condition as step (2) and collecting an MRI image of the sample after DNP enhancement; and
(4) comparing the MRI image after DNP enhancement with the MRI image without DNP enhancement,
wherein in the MRI image after DNP enhancement, an area with enhanced MRI signal intensity is a selectively enhanced fluid phase distribution area, and an area without obviously changed MRI signal intensity is a non-selectively enhanced fluid phase distribution area.
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