本文主要论述了两种扩大电动潜油离心泵工作范围的方法,是采用变速驱动装置和井口油嘴节流。由于电潜泵的操作具有灵活性,因此它可用于产量多变以及产量不可测的油井中。在设计和安装电潜泵之前,最好能先测井,对当前井的采油指数(PI)或井底流入动态(IPR)有个充分的了解。这可以利用电潜泵或其它类型的举升装置,通过事先装在井口的轻便试井装置测得。 This article mainly discusses two ways to expand the working range of the electric submersible centrifugal pump, which is to adopt variable speed drive and well head choke. Due to the flexibility of the operation of the ESP, it can be used in oil wells with variable production volumes and unacceptable yields. Before designing and installing an ESP, it is best to first log well and have a thorough understanding of current well production index (PI) or bottom hole inflow dynamics (IPR). This can be measured using an electric submersible pump or other type of lifting device through a light well testing device previously installed at the well head.