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

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


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Tracer testing of flow between injection and production wells is an effective tool to map fluid flow pathways in a geothermal reservoir. Tracer concentration curves can be used to provide insight into projected thermal drawdown in the reservoir or thermal breakthrough of re-injected fluids, estimating inter-well volumes and flow geometries. Although radioactive tracers have been used in the past, many tracer tests now use chemical tracers that are less hazardous to handle. Fluorescent organic compounds such...
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: