Mathematical Correlation Predicting Stock Tank Oil Density for Egyptian Crude Oils at Standard Conditions
A. N. El-Hoshoudy,
S. E. M. Desouky,
M. A. Betiha,
S. Abdelraouf,
M. Elaily
Issue:
Volume 2, Issue 4, July 2014
Pages:
55-58
Received:
2 August 2013
Accepted:
20 August 2014
Published:
30 August 2014
Abstract: Liquid density is one of the most important governing physical parameter of the fluid flow. Generally, oil density measured at standard conditions (14.65 psia and 60 °F) via Density Meter. Since there is a remarkable difference between calculated density from compositional analysis and measured one at standard conditions. So it is of great importance to use an accurate correlation to calculate the oil density at standard conditions. The proposed correlation correlates measured density with measured molecular weight, calculated molecular weight and calculated density which calculated from compositional analysis. Here, based on measured Egyptian oil reservoirs data; new correlation has been developed for prediction of oil density at standard conditions (14.65 psia and 60 °F). Validity and accuracy of this correlation has been confirmed by comparing the obtained results of this correlation with experimental data for Egyptian oil samples. Checking the results of this correlation shows that the developed correlation results are in a high agreement with the experimental data.
Abstract: Liquid density is one of the most important governing physical parameter of the fluid flow. Generally, oil density measured at standard conditions (14.65 psia and 60 °F) via Density Meter. Since there is a remarkable difference between calculated density from compositional analysis and measured one at standard conditions. So it is of great importan...
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The XPS Analysis of Surface Texture of Different-Density-Level Coking Coal of Fenxi County
Ge Tao,
Zhang Mingxu,
Min Fanfei
Issue:
Volume 2, Issue 4, July 2014
Pages:
59-65
Received:
14 August 2014
Accepted:
28 August 2014
Published:
10 September 2014
Abstract: In the present paper, X-ray photoelectron spectrum (XPS) is used to reveal the surface texture, main elements and occurrence mode of different-density-level sample coal of Fenxi County. The experimental results demonstrate that: (1) there is an extremely low content of nitrogen in the sample coal; (2) carbon mainly exists in the form of C-C and the contents of carbonyl (C=O) and carboxyl is still relatively low; (3) with the increasing of density, such content has a growing trend; (4) the organic sulfur of the coking coal in Fenxi County has the three major forms, i.e., （sub）sulfone, thiophene and thiol (ether), with their respective content in a low-to-high order.
Abstract: In the present paper, X-ray photoelectron spectrum (XPS) is used to reveal the surface texture, main elements and occurrence mode of different-density-level sample coal of Fenxi County. The experimental results demonstrate that: (1) there is an extremely low content of nitrogen in the sample coal; (2) carbon mainly exists in the form of C-C and the...
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