METHOD AND APPARATUS FOR TREATING FRACTURING FLOWBACK OF OIL-GAS FIELD BY USING CERAMIC MEMBRANE

摘要

A method and apparatus for treating fracturing flowback of an oil-gas field by using a ceramic membrane, relating to the technical field of water treatment. The method comprises: first performing gel-breaking and flocculation treatment on gel-containing fracturing flowback, then reducing the viscosity of the fracturing flowback by means of ozone treatment, and finally finely filtering by a ceramic membrane filtering technology. The method can improve the flux of a ceramic membrane and the operation stability, and can also shorten the treatment time, simplify processing procedures, and reduce the treatment costs of fracturing flowback. The apparatus comprises a flocculation and sedimentation tank (1), wherein the flocculation and sedimentation tank (1) is connected to a viscosity-reducing reaction kettle (2), an ozone feeding port (7) is provided on the viscosity-reducing reaction kettle (2), and the viscosity-reducing reaction kettle (2) is connected to an inlet at an intercepting side of a ceramic membrane (3).