Analis Tekno - Ekonomi Perbandingan Electric Submersible Pump (ESP) dengan Gas Lift pada Sumur X Lapangan Y

Abstract

Well production will decrease the flow rate over time. If a well cannot produce natural flow, an artificial lift is needed to help the lifting process to the surface. Well X is a production well with artificial lift in the form of ESP. Based on IPR calculation data, wells require a flow rate of 544.01 BFPD to achieve the optimum rate.Because the pumps used today are not yet able to produce optimally so it needs to be optimized and will also be compared with the potential use of other types of artificial lifts (gas lifts). Reoptimization of ESP is performed on installed ESP (EJP IND 440) and new ESP (REDA D725N). Based on the results of re-optimization of the EJP - IND 440 pump installed already uses the maximum number of stages, which is 430 stages. So that the addition of stages is not possible because it is outside the specifications of the pump, and the addition of 60 Hz frequency can reach the production rate target but the addition of the frequency is outside the outflow range, so that if applied the pump can experience the potential for upthrust.In the new ESP (REDA D725N) optimization with the selection of 260 stages 42 Hz meets the optimum value limit and is more feasible to operate. Another comparison of using artificial lift chosen is using a gas lift. In the design using a gas lift, the optimum valve is installed at a depth of 6548.83 ft with an injection volume of 0.009 Mmscfd. Based on economic analysis on the optimization of electric submersible pumps and gas lifts, the results of electric submersible pump (ESP) optimization have a more economical value. Lifting costs using electric submersible pumps (ESP) in the first period amounted to $ 14,231 and the feasibility of the project obtained was more profitable optimization of electric submersible pumps (ESP).