Authors : Saad A. Balhasan and Daniel A. Michael
Abstract: Inflow of bad water caused by the creation of non-uniform pressure conditions during petroleum production around a producing well bore may cause hydrocarbon production to gradually decrease and ultimately cease, trapping significant quantities of oil and gas in the petroleum reservoir. Production of this water along with commercial quantities of oil and gas causes an increase in the water cut over time, making the well gradually uneconomical leading to several management problems. This case study evaluates the characteristics of the EE-01 well located in the Majed EE-Pool reservoir in the Sirte Basin of Libya. The calculated optimum oil flow rate appropriate for economically feasible production to maximizing recovery is contrasted with the expected oil flow rate at the maximum productivity of the well. It is observed that the optimum oil flow rate bears an inverse relationship to the expected oil flow rate with an increase in the height of the perforations. It is recommended that the height of the perforation interval be changed to that which corresponds to the intersection of the optimum and expected oil flow rate lines in a chart of perforation interval height-vs-flow rate on which both the expected and optimum oil flow rates are plotted to both optimize petroleum production in EE-01 and maximize petroleum recovery from the Majed EE-Pool reservoir.
Saad A. Balhasan and Daniel A. Michael, 2020. Case Study on Determining the Critical Production Rate for Bottom Water Coning in the Majed (EE-Pool) Reservoir. Journal of Engineering and Applied Sciences, 15: 925-931.