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在我国,绝大多数油田都采用注水开发。在注水开发的中、后期,油层不可避免地会出现水淹和强水淹现象(合水量有时可高达90％以上)。为了保证这些油田的原油高产,必须采用大排量的抽油设备,电动潜油离心泵是最合适的一种。潜油离心泵在油井内部注水中的应用,为取消地面注水设备创造条件,而且还能提高油层采收率。潜油离心泵的地面设备非常简单,所以在我国某些特殊地区(如海滩、沼泽区、地面下降区等)有独特的使用效果。无管式电动潜油离心泵的试验成功,又可大大节省钢材,提高装置效率,降低设备成本和扩大
In our country, the vast majority of oilfields use waterflooding development. In the middle and late stages of waterflooding, the reservoir will inevitably experience flooding and strong flooding (the amount of water may sometimes reach as high as 90% or more). In order to ensure the high crude oil production in these fields, large displacement pumping equipment must be used. Electric submersible centrifugal pumps are the most suitable one. The application of the submersible centrifugal pump in water injection inside the well creates the conditions for canceling the surface water injection equipment and also improves the oil recovery. Submersible centrifugal pump ground equipment is very simple, so in some special areas of our country (such as beaches, marsh areas, ground areas, etc.) have a unique effect. Tubeless electric submersible centrifugal pump test success, but also significant savings in steel, improve device efficiency, reduce equipment costs and expand