Forecast gas well production performance with well test analysis for oil and gas industry

Abstract

Well, test pressure and deliverability analysis are carried out to determine permeability (k), skin formation damage factor, initial pressure (Pi), (ΔP skin), investigation radius (ri), the boundary of the reservoir. The results of this work are used to calculate the initial gas reserves by wells and predict production capacity in the wells studied (AOFP). Furthermore, an optimal production plan will be produced to produce the most economical value. The result of this work is the initial pressure value (Pi) which is equal to 862 psi. The skin values of the pressure derivative and Horner Plot methods are -0.214 and -0.232 respectively, the permeability value is 148 and 135 mD, the value of the investigation radius is 2110 ft. The resulting AOFP is 8214 Mscf/D. The calculation of the initial gas reserves by well uses the volumetric method which is equal to 458 MMscf. These results carried out forecasting production performance aims to determine the most optimal production planning. This production plan, the scenario plan are the 1st scenario with a gas rate of 2 MMscf and 2nd scenario uses a compression 50 psi with a gas injection rate of 1 MMScf. Furthermore, the best scenario of this research is the maximum production by using 50 psi injection rate of 1 MMScf.