Bahr Essalam Gas Wells Production Evaluation using Theoretical Method

Abstract

The production flow phenomenon potential of the Bahr Essalam’s natural gas wells surveillance can be determined. However, it is one of the most important challenges for implemented operations to be accomplished at the location. On the other hand, the deliverability test application is a reliable fundamental operation in order to evaluate the reservoir productive capability at the current reservoir conditions. Consequently, the flow-after-flow test has been implemented for three wells of XX-02, XX-14, and XX-15, the pseudo-gas potential and inflow performance relationship have been used to evaluate the test. Therefore, the collected information has been analyzed using theoretical method which is considered an accurate method for the natural gas production flow rate assessment. The data analysis demonstrated that the absolute open flow potentials (AOFP) which mathematically represent the maximum gas flow rate at bottom hole flowing pressure equal to atmospheric pressure for the wells of XX-02, XX-14, and XX-15 are 66.6, 68.97, and 74.5 MMscf/day respectively. Additionally, the prediction of gas production flow rate at bottom hole flowing pressure of 1000 psi for the wells is 63, 65, and 70 MMscf/day respectively. Moreover, the group of IPR curves that belong to three wells depicted no substantially significance change in the delivered gas at the given bottom hole flowing pressure of the reservoir, which provides an average gas flow rate of approximately 41 MM scf/day. In conclusion, the IPR curves are essential study to evaluate the wells capability to deliver the gas to the wells and the gas amount that may actually be delivered up to the separators.