Method for judging wettability of reservoir rock
A wettability and rock technology, applied in the field of petroleum exploration, can solve problems such as complicated operation procedures and difficult reservoir rock wettability judgment
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0014] The NMR relaxation time depends on the spin of the nucleus and the interaction of the surrounding medium. On the contact surface of solid-liquid two media, due to the existence of the interface phenomenon of wettability, a special region is formed near the contact surface. The fluid molecules in this region move slower than free fluid and are deflected by the magnetic field. The nuclei of atoms more easily transfer energy to the surrounding environment,...
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