PERFORMANCE OPTIMISATION OF JET PUMP WITH MINIMAL CAVITATION PROBLEM & FEASIBLE GAS OIL RATIO: (A CASE STUDY)

Many oilfields production capacities decrease due to the steady decline in pressure of the reservoir. To enhance the production different enhancement remedies implementation become necessary in order to improve total oil recovery and sustain production from a developed oil field.By using artificial lift such as pumps or gas lift these production enhancement remedies can be supported. Although jet pumps are the efficient artificial lift method tools , yet their performance is negatively affected by the cavitation problem and poor nozzle/throat combination. In this study, the feasible nozzle and throat combination has been investigated by using wellflo software to achieve optimum flow rate with least cavitation problem. Firstly water as power is used and suitable nozzle/throat combination is selected, secondly oil as power fluidisused and suitable nozzle/nozzle throat combination is selected then afterwards comparison of both the nozzle/throat combinations is done most suitable is recommended after comparing different parameters. Influence of gas oil ratio on operating pressure and operating rate is also analyzed to achieve suitable oil rate. It was observed that increasing gas oil ratio decreases operating rate but increases operating pressure.