Investigation of Artificial Lift Installation Using Electrical Submersible Pump in an Iranian Offshore Field

Usually none-volumetric hydrocarbon reservoirs during their lifetime reach to a situation that the reservoir pressure is not sufficient to produce expected amount of fluids. Artificial lift is one of the conventional methods to overcome this problem and enhance production. In the field under study from the beginning of production to now, well’s conditions have undergone considerable changes which made the rate of production to fall behind the production schedule. In this paper, first a general description about advantages and disadvantages of various methods of artificial lift are expressed. Then the future of production as a function of changes in basic parameters for one of the field’s wells has been calculated and According to that, electrical submersible pump is chosen as the best artificial lift method for that well. Determination of proper depth of pump installation and investigation of possibility of gas lock occurrence in the pump are the other results which are obtained from this research.