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

WIPO Patent Application WO/2017/096569

A1

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).

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ZHANG CHUN (CN)
ZHANG SIFAN (CN)
LIU FEI (CN)
DENG WEI (CN)
PENG WENBO (CN)
ZHANG HONG (CN)
FAN KEYIN (CN)

PCT/CN2015/096873

June 15, 2017

December 10, 2015

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JIANGSU JIUWU HITECH CO LTD (CN)

C02F9/04

CN204039176U	2014-12-24
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CN205188035U	2016-04-27
CN103539297A	2014-01-29
CN101475290A	2009-07-08
JP2011068534A	2011-04-07

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