scholarly journals Heavy oil and natural bitumen deposits of Latin America

1991 ◽  
Author(s):  
R.F. Meyer ◽  
Gerard S. Medaisko
Keyword(s):  
Latin America ◽  
Heavy Oil ◽  
Natural Bitumen

scholarly journals Biodegradation of natural bitumen by Providencia stuartii isolated from heavy oil contaminated soil

2017 ◽  
Vol 19 (2) ◽  
pp. 353-358
Keyword(s):  
Optical Density ◽  
Heavy Oil ◽  
Degradation Products ◽  
Polluted Soil ◽  
Gas Chromatography Mass Spectrometry ◽  
Natural Bitumen ◽  
Soil P ◽  
Independent Variables ◽  
Providencia Stuartii ◽  
New Compounds

Abundance and availability of unconventional petroleum has led to intensified exploitation and exploration of the bitumen reserves. This has however led to environmental pollution. This study investigated the ability of Providencia stuartii isolated from heavy oil polluted soil to degrade natural bitumen. Temperature, pH and incubation period were independent variables used for optimization of degradation while optical density was used as dependent variable. Optical density was measured using a UV-Vis spectrophotometer. Residual bitumen/degradation products were analyzed using gas chromatography- mass spectrometry (GC-MS). Optical densities obtained ranged from 0.002 to 0.408. Optimum optical density of 0.408 was obtained at 40 oC and pH 7 after 13 days of incubation. There were significant changes in the composition of bitumen after analysis with GC-MS with detection of new compounds due to degradation. The GC-MS results showed the presence of some degradation products such as benzene (1-butylhexyl), benzene (1-propylheptyl) and 23, 28-bisnor-17.β.(h)-hopane. This study revealed the excellent ability of P. stuartii in degrading bitumen contaminated environment.

Heavy oil and natural bitumen resources in geological basins of the world

2007 ◽  
Author(s):  
Richard F. Meyer ◽  
Emil D. Attanasi ◽  
Philip A. Freeman
Keyword(s):  
Heavy Oil ◽  
Natural Bitumen ◽  
The World

Natural Bitumen and Extra-Heavy Oil

2004 ◽  
pp. 93-117 ◽  
Author(s):  
Richard F. Meyer ◽  
Emil Attanasi
Keyword(s):  
Heavy Oil ◽  
Natural Bitumen

scholarly journals Non-traditional Oils: Analysis of Regional Distribution and Reserves of Heavy Oil and Natural Bitumen

2020 ◽  
Vol 6 (7) ◽  
pp. 226-234 ◽  
Author(s):  
T. Yarboboev ◽  
Sh. Sultanov ◽  
F. Aminov ◽  
D. Navotova
Keyword(s):  
Spatial Distribution ◽  
Heavy Oil ◽  
Regional Distribution ◽  
Oil Industry ◽  
Distribution Patterns ◽  
Natural Bitumen ◽  
Heavy Oils

The spatial distribution of heavy oils and natural bitumen’s depending on their reserves is analyzed. It is shown that due to the deterioration of the structure of the reserve in the direction of increasing the share of hard-to-recover oils, the role of heavy oils and natural bitumen’s in the overall hydrocarbon balance increases. Analysis of reserves showed that most of their world reserves are concentrated in Canada, Venezuela, and Russia. The results of studies of the distribution patterns of heavy oils and natural bitumen’s can be used in improving methods of field search and in solving other problems of the oil industry.

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