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Galeev D.,Novosibirskneftegaz | Dadalko R.,Novosibirskneftegaz | Potapov A.,STC OILTEAM
Society of Petroleum Engineers - SPE Russian Oil and Gas Exploration and Production Technical Conference and Exhibition 2014, RO and G 2014 - Sustaining and Optimising Production: Challenging the Limits with Technology | Year: 2014

The issue of waterflood control for fields in the 4th stage of development is analyzed. Generation of a wellwork program is based on the proposed method of integration of classical engineering methods and three-dimensional flow simulation. The results of the study allow to assess the current performance of oil-water displacement, to predict the profile of engineering parameters, and to form a targeted strategy to adjust the waterflooding system of an oil reservoir. The case study of a Western Siberia field is discussed, the deficiencies of the current development scheme are revealed, and measures to increase efficiency are presented in the form of both increased oil recovery and reduced volumes of produced and injected water. Copyright © 2014, Society of Petroleum Engineers.

Kolyagin A.G.,STC OILTEAM | Terentyev V.L.,STC OILTEAM | Shevchenko E.I.,STC OILTEAM | Denisov V.V.,STC OILTEAM | Fedorov K.M.,Academy of Oil and Gas Engineering
Neftyanoe Khozyaistvo - Oil Industry | Year: 2013

Numerical reservoir simulation is always a compromise between accuracy of geological description and calculation rate. Development of optimal 3D field model, in terms of number and size of cells, requires adequate recognition of the field's geological and technological features. The paper introduces the method of decreasing the number of cells in a model. This algorithm was applied for Sudanese G oil field simulation. It includes common upscaling procedure and split of the model into parts based on geological characteristics and development technology. Simplified material balance model is built for each reservoir, inter reservoirs transmissibility and aquifer power are evaluated as a ressult of reservoir pressure matching. Division of the initial 3D model is performed according to simplified models with predetermined on Material balance models aquifer flux and interbed leakage.

Terentyev V.L.,STC OILTEAM | Kolyagin A.G.,STC OILTEAM | Krashakova O.L.,STC OILTEAM | Gusev S.S.,STC OILTEAM | Fedorov K.M.,Academy of Oil and Gas Engineering
Neftyanoe Khozyaistvo - Oil Industry | Year: 2013

Economic reasons often dictate the application of unit wells net system for development of different reservoirs of an oil field. In this case solution of economic objectives is accompanied by development problems of non-uniform reservoirs depression and water breakthrough through high permeable streaks. Analysis and simulation of multi reservoir field G (Sudan) development, conducted by OILTEAM company in the framework of Field Development Project (FDP), reveals the through a well production cross flow as one of the main problems. The experience of well flow optimization by possible techniques is presented in the paper. Different method of well cross flow diagnostics, techniques and technologies of cross flow control and optimization algorithm of cross flow management are considered.

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