Core drilling mud waste liquid circulation treatment method

The invention relates to a core drilling mud waste liquid circulation treatment method, which innovatively uses a pretreatment agent and a post-treatment agent to carry out step-by-step treatment on core drilling mud waste liquid. Wrapping, adsorbing and flocculating oil residues, heavy metal particles and macromolecular chemical substances in the slurry waste liquid to finally form upper-layer clear liquid and lower-layer turbid liquid, pumping the upper-layer clear liquid back to the core drilling construction for cyclic utilization, pumping the lower-layer turbid liquid into a standing and solidifying pool, and solidifying the upper-layer turbid liquid into the lower-layer turbid liquid; the'turbid liquid 'is cured by utilizing the synergistic effect of an amide amine sludge curing agent in the post-treatment agent and wormwood plants subjected to alkalization treatment, so that the'turbid liquid' forms solid wastes, the volume of the solid wastes is 5-8% of that of the original waste slurry liquid, and th