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Murta Formation/Mckinlay Member Of The Murteree Ridge Nappacoongee-Murtree Block-Improved Oil Recovery Project

Theologou, Paul

Doctor of Philosophy, 1995

University of South Australia

Abstract

This thesis is concerned with the recovery of oil from petroleum reservoirs. The main purpose of this study was to treat the problem of oil recovery as a complete science which transgresses the boundaries of geology and engineering. Reservoir studies are more effective when geologists and engineers work together in synergism (Harris & Hewett, 1977). A synergism approach has been used throughout the study of the Murta reservoir, which has resulted in a better understanding than would have come from separate study by geologists and engineers.

The problem initially outlined by Santos Ltd. was to define the extent of a potential 50 million barrels (MMbbls) of oil trapped within the low permeability sections of the Murta Formation in the area of the Murteree Ridge, with a view to its recovery. For the purposes of this thesis low permeability oil refers to oil contained in all parts of the Murta Formation other than the high permeability streak (HPS). The order of topics as presented in this thesis, is roughly the same as the order in which they were completed during the course of my candidature. The flow diagram presented in Figure 1b shows the information incorporated into the study to build the reservoir model that now exists.

It was originally intended to build a simulation model of the system. However, reservoir characterisation and an understanding of the physics of the system has meant that reservoir simulation is not necessary. The model presented in this thesis applies to the Murta only in the study area. and care should exercised before applying it to other Murta reservoirs.


Australian School of Petroleum
THE UNIVERSITY OF ADELAIDE

SA 5005 AUSTRALIA

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