Artificially manufactured conglomerate core and preparation method thereof

The invention belongs to the technical field of petroleum and natural gas matching, and particularly relates to an artificially manufactured conglomerate core and a preparation method thereof. The raw material of the conglomerate core comprises the following components: a rock powder mixture and a cementing agent, wherein the rock powder mixture has a particle size gt; the rock powder comprises rock powder a with the particle size of 8000 microns, rock powder b with the particle size of 4000-8000 microns, rock powder c with the particle size of 2000-4000 microns, rock powder d with the particle size of 500-2000 microns, rock powder e with the particle size of 50-500 microns, and the particle size lt; the mass percent of the rock powder f in the rock powder mixture is 4-5%, 25-28%, 25-30%, 18-20%, 20-23% and 1-3% respectively. The preparation method comprises the following steps: sequentially adding the rock powder into the cementing agent from fine to coarse, mixing, then loading the mixture into a mold, and