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目前，在加拿大西部油田Edmonton工程研究中心主持进行井下油水分离器系统的机机现场试验．该系统是建立在全新的观念上，其工作过程为：①将高含水油井的水和油在其下进行分离；②将分离出的水在井下直接注入地层；③将分离出的油抽至地面。这一系统的优越性在于：可增加高含水油井的采油率，降低生产成本，减少水处理设备投资。现阶段的试验是对组成该系统的主要部件──泵分别进行操作试验。以期通过试验确定并完善整个系统，并于1995年中期推出商品化系统。试验中所采用的泵分别为：井下电潜泵、空腔泵及油杆泵。
At present, field tests are carried out at the Edmonton Engineering Research Center of Western Canada Oil Field for the machine-site test of downhole oil-water separator system. The system is based on a completely new concept. Its working process is as follows: ① separating the water and oil in the high water cut oil well under it; ② injecting the separated water directly into the subterranean formation; and ③ pumping the separated oil to ground. The superiority of this system lies in: Can increase the oil recovery rate of high water cut oil wells, reduce production costs and reduce investment in water treatment equipment. At this stage of the test is composed of the main components of the system ─ ─ were operating the pump test. With a view to determining and refining the entire system through experiments and launching a commercial system by mid-1995. Pumps used in the experiment were: underground electric submersible pump, cavity pump and rod pump.