Ημερολόγιο Εκδηλώσεων

Περιγραφή:
ΠΟΛΥΤΕΧΝΕΙΟ ΚΡΗΤΗΣ Σχολή Μηχανικών Ορυκτών Πόρων Εξεταζόμενοι φοιτητές: Βουμβουράκης Κωνσταντίνος, Γεωργαντάς Νικόλαος Θέμα Διπλωματικής Εργασίας: «Maximization of oil production in a North Sea reservoir by history matching and optimal location of additional injection well» Τριμελής Εξεταστική Επιτροπή: Καθ. Καλογεράκης Νικόλαος (επιβλέπων) Καθ. Βαρότσης Νικόλαος Καθ. Χριστόπουλος Διονύσιος Περίληψη The complexity of petroleum production from their baring geological formations is a multidimensional mathematical problem. The “a priori” accurate estimation of the future reservoir production, constitutes one of the most demanding and important tasks in Petroleum Engineering. To overcome this difficulty the concept of “Reservoir Simulation” has been introduced in the petroleum industry. A reservoir simulation is the image projection of the actual reservoir formation, by separating the total volume of it, into many finite volumes, called “blocks”; and thus creating a finite volume system, called “Grid system”. Specific properties are given to each block or group of blocks. Fluid flow is then simulated by solving specific mass balance equations, in interblock fluid exchange. By taking into account, possible production data from the actual reservoir, the block properties may be tuned in order for the simulated reservoir behavior to match the actual observed one. This procedure is called “History matching”. One of the most known and widely used simulation software in the industry is the ECLIPSE simulator, by SCHLUMBERGER Service Company. In this Master Thesis, a section of an actual reservoir from the Gullfaks Field in the Norwegian part of the North Sea has been obtained. Eclipse software was used in order two different history matching approaches to be developed, and eventually to be compared against each other, in terms of accuracy in future production forecasting. To further develop the two models created in the previous step, and in order to expand the spectrum of results obtained, it was decided to investigate whether an additional injection well would have a positive effect on the field oil production total (FOPT). Therefore, six different locations of the reservoir grid have been tested. Finally, according to the outcome of these additional simulation runs, the optimal location for an additional injection well, in order to achieve production maximization, has been proposed.