The invention belongs to the technical field of oil reservoir development, and in particular relates to a manufacturing method of an intraformationall heterogeneous core capable of realizing separated injection and separated production, and an experimental method thereof. The manufacturing method comprises the following steps: firstly, weighing the quantity of
quartz sand and
epoxy resin for manufacturing high, medium and low permeable
layers with the design size, and mixing the
quartz sand and the
epoxy resin uniformly and correspondingly; secondly, putting isolating
bakelite plates among lower, middle and upper
layers of mixed sand in the length direction end face, putting
metal moulds separately, scraping, pressurizing and
drying, adhering a core end cover to a core end face,
coating the surfaces of the other parts of the core with one layer of thickened and uncured
epoxy resin, and naturally
drying; finally, putting the adhered end cover core into a wood mold, performing integral
casting by using the epoxy resin, and curing to form the intraformationall heterogeneous core capable of realizing separated injection and separated production. The manufacturing process is simple to operate, the experimental data is reliable, and the problem that each small layer wave, the state and the reserve
recovery degree of the intraformationall heterogeneous core cannot be evaluated quantitatively is solved.