Well drilling waste sludge reduction harmless resourceful treatment method and system

• Main Authors: ZHU MI, TANG SHENGBO, NAN ZHI, ZHU YONGGANG, ZHANG JIANJIA, ZHANG FAN, NING YANG
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2021
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides a well drilling waste slurry reduction harmless resourceful treatment method and system, relates to the technical field of petroleum and natural gas waste treatment, and solves the technical problem that the treatment effect of well drilling waste slurry is not ideal and causes environmental pollution. The well drilling waste slurry reduction harmless resourceful treatment method and system comprise the following steps: step 1, collecting slurry; step 2, carrying out solid-liquid separation; step 3, adding water into the separated solid-phase discharge of a sulfonation system to fluidize and homogenize the solid-phase discharge; step 4, carrying out gel breaking and flocculation; step 5, carrying out solid-liquid separation; and step 6, treating the liquid phase through an iron-carbon micro-electrolysis and Fenton oxidation water treatment device. The invention is used for providing the well drilling waste slurry reduction harmless resourceful treatment method, wherein the method can ef