University of Sulaimani,Iraq
Title: Indications about the Movaebility of Hydrocarbons within the Carbonate Jeribe Formation in the well Hr-49, Hamrin Oilfield, Northern Iraq
The carbonate Jeribe Formation of the Middle Miocene age has been studied from the well Hr-49 in Hamrin Oilfield depending mainly on the data from the available wire line logs. The technique of the quick look method used for preliminarily indicating the existence of the hydrocarbons in the studied formation and the possibility of their movement for production. The calculated values of the porosity and permeability aided in determining four flow zones representing four unique hydraulic flow units. The cutoff of 0.6 Movaeble Hydrocarbon Index also used to differentiate between zones containing movaeble hydrocarbons and zones of water bearing or of non movaeble hydrocarbons (zones of high residual hydrocarbon saturation). Accordingly, the gross 47m thickness of the Jeribe Formation appeared to be containing hydrocarbons with different saturations intercalated with narrow water bearing horizons. The highest production efficiency exists at the upper part of the formation (Reservoir Unit 4A) and the lowest at the lower part (Reservoir Unit 2). Production looks to be supported by the secondary porosities (fractures or voids) that been detected in different depths along the studied section.