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Biodegradation of BTEX compounds by a mixed culture obtained from petroleum formation water
Babaarslan, C; Abuhamed, T; Mehmetoglu, U; Tekeli, A; Mehmetoglu, T (Informa UK Limited, 2003-07-01)
The biodegradation of BTEX compounds (benzene, toluene, ethyl benzene, and o,m, p-xylenes) by a mixed culture obtained from the formation of water, produced from the petroleum wells of the Turkish Petroleum Corporation (TP...
Modeling of gas demand using degree-day concept: Case study for Ankara
Gumrah, F; Katircioglu, D; Aykan, Y; Okumus, S; Kilincer, N (2001-02-01)
The demand for natural gas is rapidly increasing in Turkey as it is in the rest of the world. However, natural gas reserves and production are rather limited in Turkey. The bulk of the Turkish gets demand is met by imports...
Modeling of CO2 storage in an oil reservoir
Gumrah, F.; Dulger, M.; Gunaydin, D.; Senel, O. (Informa UK Limited, 2008-01-01)
This study provides an overview for the carbon dioxide sequestration process in an oil reservoir by using the software CMG's GEM. Different scenarios are applied for the oil reservoir description. Firstly, a single layered...
Using foam in horizontal well drilling: A cuttings transport modeling approach
Ozbayoglu, ME; Miska, SZ; Reed, T; Takach, N (Elsevier BV, 2005-04-30)
Foam is a frequently used compressible fluid in drilling applications. Cuttings transport with foam has been a focus of interest for years. Few studies have been conducted on vertical well configuration and successfully ap...
Critical Fluid Velocities for Removing Cuttings Bed Inside Horizontal and Deviated Wells
Ozbayoglu, M. E.; Saasen, A.; Sorgun, M.; Svanes, K. (2010-01-01)
This study aims to estimate the critical fluid flow velocity for preventing the development of a stationary bed using empirical correlations valid for horizontal and highly inclined wellbores that can be easily used at the...
Genetic algorithms for optimizing the remediation of contaminated aquifer
Gumrah, F; Erbas, D; Oz, B; Altintas, S (2000-11-01)
Produced water constitutes a large amount of waste fluids during the production operation of an oil field. Underground injection for disposing the wastewater from hydrocarbon production is an engineering problem due to the...
A New Model to Determine the Two-phase Drilling Fluid Behaviors through Horizontal Eccentric Annular Geometry, Part B: Frictional Pressure Losses Estimation
Osgouei, R. Ettehadi; Ozbayoglu, E. M.; Ozbayoglu, M. A.; Yuksel, E. H. (2015-01-01)
Drilling with aerated muds is becoming more often used in underbalanced drilling operations. One of the major challenges that has to be faced in such operations is the estimation of the physical behavior of aerated fluids ...
The biodegradation of benzene, toluene and phenol in a two-phase system
Hamed, TA; Bayraktar, E; Mehmetoglu, U; Mehmetoglu, T (Elsevier BV, 2004-07-15)
A two-phase aqueous-organic system was used to degrade benzene, toluene and phenol, individually and as mixture by Pseudomonas putida F1 (ATCC 700007). In the first stage of the work, the effect of the phase ratio (0-1, v/...
Genetic algorithm for predicting permeability during production enhancement by acidizing
Gumrah, F; Sarkar, S; Tasti, YA; Erbas, D (2001-04-01)
Acidizing, a very common stimulation process, is generally initiated when near wellbore formation damage causes a reduction in the productivity of an oil or gas reservoir. The ultimate goal of acidizing is to improve the n...
Waste water disposal: Polluted aquifer cleanup optimization by using genetic algorithms
Gumrah, F; Erbas, D; Oz, B; Altintas, S (2000-07-01)
Water produced constitutes a large amount of waste fluids during the production operation of an oilfield. Underground injection for disposing of the wastewater from hydrocarbon production is an engineering problem due to t...