Steam foam application in linear and three-dimensional limestone models.

Demiral, Mehmet Raif Birol


Thermal Modeling and Verification of PV Module Temperature and Energy Yield Using Outdoor Measurements for Ankara, Turkey
Tuncel, Bilge; Akınoğlu, Bülent Gültekin; ÖZDEN, TALAT; Balog, Robert S (2018-11-14)
Ankara is in the Central Anatolia region of Turkey where the climate is dry-continental with an annual solar insolation of around 1750 kWh/m(2). In the transition to renewable energy, detailed analyses are required to ensure effective and economic utilization of the available solar resource. An essential part of these analyses is to calculate expected energy yield. For photovoltaic (PV) systems, this includes the effect of temperature on the PV efficiency, which determines the power yield of the PV modules....
Limestone decay in historic monuments and consolidation with nanodispersive calcium hydroxide solutions
Caner, Evin; Saltık, Emine Nevin; Restoration in Department of Architecture (2011)
Exposure to atmospheric conditions results of deterioration in historic monuments. and their stones. Limestone conservation presents many problems that have to be investigated in detail. In this study, limestone deterioration and development of its conservation treatments were investigated through examination of the statues carved from karstic limestones in Nemrut Dağ Monument. The decay mechanisms that had major roles in their deterioration during two thousand years of exposure to atmospheric conditions an...
Managed pressure drilling techniques, equipment & applications
Tercan, Erdem; Kök, Mustafa Verşan; Department of Petroleum and Natural Gas Engineering (2010)
In the most of the drilling operations it is obvious that a considerable amount of money is spent for drilling related problems; including stuck pipe, lost circulation, and excessive mud cost. In order to decrease the percentage of non-productive time (NPT) caused by these kind of problems, the aim is to control annular frictional pressure losses especially in the fields where pore pressure and fracture pressure gradient is too close which is called narrow drilling window. If we can solve these problems, th...
Uncertainty evaluation through ranking of simulation models for bozova oil field
Tonga, Melek Mehlika; Akın, Serhat; Department of Petroleum and Natural Gas Engineering (2011)
Producing since 1995, Bozova Field is a mature oil field to be re-evaluated. When evaluating an oil field, the common approach followed in a reservoir simulation study is: Generating a geological model that is expected to represent the reservoir; building simulation models by using the most representative dynamic data; and doing sensitivity analysis around a best case in order to get a history-matched simulation model. Each step deals with a great variety of uncertainty and changing one parameter at a time ...
Random walk particle modelling of polymer injection using matlab reservoir simulation toolbox
Mamak, Gökhan; Durgut, İsmail; Department of Petroleum and Natural Gas Engineering (2017)
Enhanced oil recovery (EOR) is essential to increase the maximum recoverable oil by natural means of production. Having chosen an EOR method, the effectiveness of the method should be analyzed before applying to a reservoir since the methods are generally costly. Polymer injection is a chemical EOR process, where the injected polymer with water increases the water viscosity, and help increasing the sweep efficiency in the reservoir. In order to model the effects of polymer injection, the random-walk particl...
Citation Formats
M. R. B. Demiral, “Steam foam application in linear and three-dimensional limestone models.,” Ph.D. - Doctoral Program, Middle East Technical University, 1986.