Installing an electrical submersible pump can be a way to increase the production in a well. This report will explain some ways the electrical submersible pump can be installed and describe the different components in an electrical submersible pump. The report will also give an insight in how electrical submersible pumps have been used and improvements done to the electrical submersible pump on two different fields. The main part will describe a method to screen wells and find out if installing an electrical submersible pump will be profitable. The method is to estimate future oil production, based on real-time production, with and without an ESP installed, and calculate the net present value. The method takes into account costs of installing, running and removing an electrical submersible pump. The ESP screening tool is screening the wells automatically. In addition it does an ESP simulation to find applicable pumps. For the ten wells screened by the ESP screening tool, the net present values have been negative, due to weak water cut estimation.