Evaluation of the injection performance in the inter-zone 17-19 of HMD field

Abstract

The recovery of hydrocarbons is done through stages: primary, secondary and EOR, the primary recovery uses the natural energy of the reservoir to produce hydrocarbons, the secondary recovery comes after that and it depends on injecting, water and gas into the reservoir to energize it. in order to study the efficiency of injection, we have chosen the inter-zone 17-19 which located in the South-East of the Hassi -Messaoud field. There are two different methods for estimating the quantities of hydrocarbons: The volumetric method which is used to calculate reserves at the beginning of the Development of the reservoir. and the dynamic method which depend on the material balance equation. After analyzing the VRR and the HCPVI curves we find that the withdrawal-injection balance is established in our zone and the recovery factor reaches 36% after the injection of 57.9% of the pore volume.