Author : Engr. Zafarullah, Dr. Ubedullah Ansari, Engr. Habibullah, Engr. Imtiaz Ahmed, & Engr. Muzamil Ahmed

Oil wells which are being produced having liquid in it having reservoir pressure, those wells have energy through which liquids are being pushed to lower pressure areas. Artificial lift methods defined as to application of artificial method through which flow of crude oil production can be increased or improved from production well. In general, this could be done through a mechanical device that are used inside the well like pump or velocity string, this method is working through decreasing the weight of the hydrostatic column with injecting gas into the liquid phase distance down the well. To develop a troubleshooting model of pumping capacity of jet pump to achieve optimized flow rate using well performance nodal software (SNAP). To abridge the pump selection technique by conducting sensitivity analysis over nozzle and throat size. In this studies SNAP Software is used to select proper nozzle and throat for jet pump in various conditions, to avoid the problems. Through SNAP can analyze relationships between the reservoir, wellbore, and surface equipment to determine a wells’ production capacities. After that in this study troubleshooting for jet pump will also be discussed, in which most common problem of jet pump occurred during operation and installation will be indicated. Proper specific gravity ratio of reservoir fluid and power fluid can optimize high efficiency of jet pump. It is also observed that viscosity ratio of reservoir fluid to the power fluid can reduce the quantity of light oil in power fluid. (again economical). It is better to select nozzle and throat size through computer software because software gives accurate result then human & also gives good recommendation for selecting best nozzle and throat size for given conditions. It is better to simulate first then apply.

Keywords:  Jet Pump, Nozzle and Throat size, Selection of Jet pump, Simulation of Jet pump, Artificial Lift