Filtration and reuse of produced water containing Surfactant for oil extraction

摘要

A method to extract oil from an oil formation includes Steps: i) to extract a mixture of Oil and formation water with oil content; (ii) to separate at least a porcIon of oil from the Oil - water mixture to form a produced water; (iii) add a Surfactant alquileno oxide Polymer that has a less than 10000 mu02b7 gives the produced water;(iv) The Water produced through a Polymer Membrane to form a Flow of permeate Flux and Retention; and (V) inject the permeate Flow to Oil formation.