Artificial neural network based production forecasting for a hydrocarbon reservoir under water injection

NEGASH Berihun Mamo,YAW Atta Dennis

Table 2 Features extracted based on available input and output terms.

Feature Form Physical meaning 1 WIMP(k-1)- WIP(k-1) One time step delayed pressure difference along the wellbore 2 THT-GLR Random combination 3 WIMP-WIP The pressure difference along the injection wellbore 4 WIP/WIMP The pressure ratio of bottomhole and surface 5 THP/GLR Related to gas lifting required to bring fluid to surface 6 CP-PMP Pressure loss due to friction and hydrostatic column 7 (CP-PMP)THT Random combination 8 OPR(k-1) One time step delayed oil flow rate 9 OPR(k-2) Two time step delayed oil flow rate 10 GPR(k-1) One time step delayed gas flow rate 11 GPR(k-2) Two time step delayed gas flow rate 12 WPR(k-1) One time step delayed water flow rate 13 WPR(k-2) Two time step delayed water flow rate