Application of X-ray CT imaging as an alternative tool for cloud point determination

2000-01-01
Karacan, C.Ö.
Demiral, M.R.B.
Kök, Mustafa Verşan
This study explains the use of X-Ray CT (computerized tomography) as an alternative tool for cloud point determination of crude oils and dark fuel oils by showing the results for artificially prepared transparent oils. The technique is fully computerized and data gathering and analysis are achieved by taking the advantage of the processing of the CT images. In the study, the cloud points of diesel oil samples containing 5%, 10% and 15% additional wax were determined with this new technique. Results show that the cloud points determined with this technique and the standardized ASTM D-3117 method are very close. This encourages the use of the proposed technique to determine the cloud point of transparent distillate fuels and dark fuel oils and crude oils, whose cloud points can not be determined easily and accurately.
Petroleum Science and Technology

Suggestions

Comparative methods in the determination of wax content and pour points of crude oils
Kök, Mustafa Verşan; Claudy, P. (2007-12-01)
In this research, differential scanning calorimetry (DSC) and gas chromatography is used to determine the wax content of fourteen crude oils of different sources. Different empirical equations were applied to compare the wax content of crude oils. For the fourteen crude oil samples with the wax content ranging from 7.5 to 43.8 mass%, it was observed that the results of empirical equations were in good agreement with those determined by DSC and GC. Accordingly, a correlation between ASTM pour point and the t...
Application of predictive Enhanced Oil Recovery models on a very heavy oil field
Kök, Mustafa Verşan; Akın, Serhat (Informa UK Limited, 2001-12-01)
In this study, several predictive enhanced oil recovery (EOR) techniques are used to evaluate potential thermal oil recovery techniques that could be applied on a very heavy oil (10-12°API) field located in Southeast Turkey. Two of the EOR techniques were found to be applicable after the screening process: in situ combustion and steam injection. Sensitivity of the processes to several operating parameters, such as steam injection rate, air injection rate, and steam quality, were established. It was observed...
Use of NMR relaxometry to assess physicochemical characteristics of seeds and grains
Ünal, Kübra; Öztop, Halil Mecit; Alpas, Hami; Department of Food Engineering (2022-8)
Nuclear Magnetic Resonance (NMR) relaxometry is a widely used characterization method for the analysis of physiological and biochemical changes in a huge variety of samples. Time domain NMR (TD-NMR) relaxometry provides structural analysis at low magnetic fields. It is basically relies on the relaxation times of proton signals coming from the entire sample. Thus, it provides quantification of water absorption and analyzing its distribution within the biological systems. In this dissertation, plant tissues a...
Mathematical modeling of the soaking period in a microbial enhanced oil recovery application
Behlulgil, K; Mehmetoğlu, Mustafa Tanju (2003-09-01)
In this study, experimental conditions of the microbial enhanced oil recovery (MEOR) technique applied for Garzan oil (26degrees API; southeast Turkey) were utilized in a mathematical model that describes the transport of bacteria and its nutrients by convective and dispersive forces, including bacterial decay and growth. From the results of the variation of bacterial concentration with distance, it was observed that the bacterial concentration increased as the nutrients were consumed with time. Although so...
Comparison of Wax Appearance Temperatures of Crude Oils by Differential Scanning Calorimetry, Thermomicroscopy and Viscometry
Kök, Mustafa Verşan (1996-07-01)
This paper presents the results of an experimental study of the determination of wax appearance temperatures (WAT) of 15 crude oils by differential scanning calorimetry (d.s.c.), thermomicroscopy and viscometry. Good agreement is obtained among the three techniques for crude oils having a significant precipitation rate. Considering the great diversity of crude oils, it is concluded that d.s.c. and thermomicroscopy should be used together for a better understanding of the determination of WAT of crude oils.
Citation Formats
C. Ö. Karacan, M. R. B. Demiral, and M. V. Kök, “Application of X-ray CT imaging as an alternative tool for cloud point determination,” Petroleum Science and Technology, pp. 835–849, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36199.