Cyclonic Dissolved Air Flotation for Advanced Treatment of Oilfield Produced Water

Authors: Jian Xiaowen, Yang Liubin, Qin Xiongde
Shenzhen Sinokle Technology Co., Ltd., Shenzhen, Guangdong

Document version: 202107  |  File type: PDF

Abstract

This study treats oilfield produced water for advanced reinjection using cyclonic dissolved air flotation as the primary process, supported by a new type of ceramic membrane filtration as the secondary process. The application of a pilot plant at the Xingshiwu-I Gathering Station of No. 5 Oil Production Plant, Daqing Oilfield, is also presented. The treated effluent ultimately met the "5, 1, 1" standard.

Keywords: advanced reinjection; cyclonic dissolved air flotation; physical method; "5, 1, 1" standard; new ceramic membrane