APPARATUSES, SYSTEMS AND METHODS FOR EVALUATING IMBIBITION EFFECTS OF WATERFLOODING IN TIGHT OIL RESERVOIRS

摘要

A method for evaluating imbibition effects of waterflooding on crude oil produced from at least two core samples is described herein. The method includes providing the at least two core samples to a core holder, each core sample forming a layer within the core holder, each core sample being absorbed with crude oil that is distinguishable from other crude oil absorbed on other core samples, and each core sample having a permeability that is different than a permeability of the other core samples, conducting the waterflooding on the core samples by injecting a first fluid into the core holder to produce a second fluid, the second fluid comprising at least a portion of the crude oil of each of the core samples; analyzing the second fluid to determine a volume of one portion of the crude oil produced from one of the core samples; and determining, based on the volume of the one portion of the crude oil, a volume of crude oil produced due to imbibition effects from the one of the core samples based on the permeability the one of the core samples.