Water Injection Performance in the Abu-Attifel Oil Field Using the Hall Plot

Abstract

Waterflooding is the most common improved oil recovery (IOR) technology used to improve oil recovery. The water flooding project should be launched at an optimal time to increase the recovery and maximize profits. It is important to have tools available to monitor and assess the wells that are additionally cost-effective. Not only the monitoring of the whole flooding project but also the monitoring of each individual well is important to guarantee a successful oil recovery. In this paper, the Hall plot analysis was applied to evaluate the injection performance of M20 and M21 injection wells in the Abu-Attifel oil field. The Abu-Attifel oil field was discovered in 1967 and began production in 1972 with a weak water drive and an ongoing injection process. Hall’s method is a simple and cheap tool used to evaluate the performance of water injection, and it is based on the assumption of steady-state radial flow. It is concluded that the hall plots showed a change in slope after an initial period of fill-up for both injectors, which indicates the occurrence of skin due to the near-wellbore plugging.