f 3D Geostatistical Model of the Alt Sinan Reservoir in the Batı Kozluca Heavy Oil Field

B.Kozluca Field is located within the boundaries of provience of Şırnak in southeast Anatolia. The field was discovered in 1984 and began oil production in 1985. B.Kozluca is a heavy oil field with the gravity of 12.6 0API. The basis of this study is based on reservoir modelling and simulation study created in 2001. By using data of 12 wells drilled after 2006 and updated structure contour map; detailed 3D geological model was created with geostatistical methods. 3D geological model was created with “PETREL” software. Wells, log data, structure surface of Alt Sinan Formation, fault models and sedimentological studies were input into the model. Main reservoir rock is Alt Sinan carbonates. The formation is divided into three different flow units according to the log data and petrographic facies. Variogram maps has been created by using petrophysical properties of wells. Petrophysical properties on the basis of flow unit, were distributed to area as three-dimensional. And orginal oil in place was calculated. This model will be input to run the simulation.