Abstract: In view of high water content in production well, wellbore simulated experiment has been done in laboratory to evaluate the application result of downhole oil-water separation with the help of multi-cups uniform flux gas anchor,and then the curve between residence time and water content ratio was protracted.The oil-water sepa- ration results show that water content ratio could be up to 98% at some circumstances with the multi-cups uniform flux gas anchor,which realizes the purpose of energy- saving and consumption-reducing.