E Each production well is expected to be produce fluid will flow naturally tothe surface. This process will take place to the point where the reservoir pressure will decrease, so the ability to lift the fluid production to the surface will be reduced or stopped altogether. At this time, we need to use artificial lift methods among other by using ESP pump, which currently used on the three wells that has been evaluate, named BN-23 well, BN-35 well, and BN-104 well. For doing the more optimal ESP design, we need to determine the maximal production rate (Qmax) from each well, that currently using Vogel correlation.From the IPR curve, the optimal production rate (Qopt) determined by 80% from the Qmax, subsequently compared with the ESP Qactual that currentlyused. If there is a huge gap between actual production rate and the optimalproduction rate, then we should choose another pump which more applicable to be used. However, if the gap is less, we still use the currently ESP. The substitution pump chosen depend on the availability of pump performance (Pump Curve Performance) and the concerning on the optimum production rate (Oopt) in order to make a good efficiency as much as 70 % on the operating range of the pump production rate. The next step taken is calculating the motor capacity, the electricity supporting equipment which consists of the cable size, and transformer. The component design will be compared with the equipment component installed in order to make sure whether the substitution of supporting equipment is needed or not. The calculating result and the design which is done in this final assessment represented that the substitution of BN-35 well’s ESP, which is IND-3200 is unnecessary, on the other hand, the ESP of BN-23 well have to be substitute from IND-3200 to IND-2000, and the ESP of BN-104 well have to substituted from IND-3200 to IND-1300.