Dow Global Technologies LLC ;Rohm and Haas Company
发明人:
Mukherjee Joydeep,Das Supriyo,Yu Wanglin,Acevedo Velez Claribel,Rozowski Peter M.,Falcone-Potts Susan K.
申请号：
US201515767469
公开号：
US2018296985(A1)
申请日:
2015.11.06
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
A method for recovering oil from an oil bearing formation including the steps of: i) recovering an oil-water mixture from the oil-bearing formation; ii) separating at least a portion of the oil from the oil-water mixture to form a produced water; iii) adding a polymeric alkylene oxide surfactant having a Mw of less than 10000 Da to the produced water; iv) passing the produced water through a polymeric membrane to form a permeate stream and a retentate stream; and v) injecting the permeate stream into the oil bearing formation.
