scholarly journals Hygienic environmental assessment in the oil-and-gas bearing area on the base of cytogenetical and molecular-genetic methods

2019 ◽  
Vol 96 (2) ◽  
pp. 121-124
Author(s):  
N. N. Ilyinskikh ◽  
E. N. Ilyinskikh ◽  
I. N. Ilyinskikh ◽  
A. E. Yankovskaya ◽  
Stanislav A. Saushkin

The study have been conducted in settlements located near oilfields of the Nizhnevartovsk area, the Khanty-Mansi autonomous district (Russian Federation). There were examined 802 persons aged of from 18 to 56 years not proximately employed in processes of the oil extraction. Control group was consisted of329 residents of the north of Tomsk Region living in the area without any polluting environment industry. By using such methods of analysis as micronucleus test in human buccal cells, the xenobiotic biotransformation of both GSTM1 and GSTT1 gene polymorphism, as well as the assessment of oil contamination of local drinking water there was executed the hygienic assessment of ecology in the settlements located near oil fields. The elevated rate of cytogenetic disorders was established to be observed most of all in the residents of this region, as well as in persons recently moved to this area. Most significant deviations from the control according to the micronucleus test were detected in individuals with the GSTM1 (0) /GSTT1(0) genotype. In the control group no such consistent pattern was seen.

2021 ◽  
Vol 10 (1) ◽  
pp. 20-23
Author(s):  
Marina Magomedovna Arslanova ◽  
Elena Aleksandrovna Shornikova

Assessing the quality of environmental objects, identifying the causes of pollution and predicting the future state is an urgent and important task, since it is the quality of natural objects that largely determines the state of human health. This paper presents results of the statistical analysis of the data of water quality monitoring in the rivers within oil fields of the Khanty-Mansi Autonomous Okrug Yugra during 20182019. The correlation analysis (according to Pearson) was carried out to identify the relationships between the samples of hydrochemical parameters and the number of microorganisms of various ecological-trophic groups. As a result of the correlation analysis of the relationship between the indicators of the chemical composition of water, a direct and inverse correlation was obtained for the following indicators: total iron, anionic surfactants, nickel, phenols, copper, sulfates, ammonium ions, lead, phosphates, manganese. The maximum value of the correlation coefficient is observed for Ni and Cr concentrations. For total iron and manganese, a significant positive correlation is also revealed. The distribution of chemical compounds in the rivers doesnt have a pronounced correlation dependence, which is probably due to the heterogeneity of the composition of the waters, as well as to the increasing impact on the environment of the oil and gas complex.


2020 ◽  
Vol 1 (10) ◽  
pp. 323-336
Author(s):  
E. V. Bodrova ◽  
V. V. Kalinov ◽  
V. N. Krasivskaya

The relevance of the study is determined by the significance of the accumulation of everything positive from the historical experience of implementing national projects, including the formation of the country’s oil and gas complex. On the basis of archival documents, issues related to the evolution of state policy in the field of searching for new oil fields in the Ural-Volga region on the eve and during the Great Patriotic War are considered. The novelty of the study is determined not only by the introduction of previously unpublished documents into scientific circulation, but also by an attempt to analyze the ongoing discussions about the prospects of this oil region, very contradictory decisions of the government in this regard. Attention is focused on such a miscalculation of the Soviet government in the pre-war period as a stake on the development of oil production, primarily in Azerbaijan and the North Caucasus. It has been proven that as a result, the oil workers of the Second Baku felt a lack of funds, equipment, and qualified personnel. It is concluded that as a result, only the first half of 1944 was marked by the largest event in the oil industry of our country: scientists confirmed the assumptions that there are multilayer oil fields in the area between the Volga and the Urals. The authors of the article argue that the discovery of new deposits was of strategic importance for the industrialization of the country, and later for the supply of oil products to the rear and front. It is emphasized that the development of the Devonian deposits of the Ural-Volga region, which began in 1944, became the basis for a sharp increase in oil production in this region.


2019 ◽  
Vol 59 (4) ◽  
pp. 656-669
Author(s):  
A. Zabanbark ◽  
L. I. Lobkovsky

At the limit of the East-Canadian continental margin there are three oil and gas regions from north to south: Labrador Sea shelves, margins of the Great Newfoundland Bank and the continental margin of Nova Scotia. In each of these distinguishing regions are a number of sedimentary basins completely plunging under the water. At the shelf of Labrador Sea distinguishing the following large sedimentary basins: Saglek, Hopdale and Havke, at the margin of Newfoundland Bank it is known the basins: Jeanne d’Arc, Flemish Pass and Orphan. At the Nova Scotia shelf there are Nova Scotian and Sable basins. It is remarkable at the lofty latitude like of Labrador Sea region the age of the productive sediments beginning from more ancient rocks (Paleozoic), than in basins situated in law latitude (Mesozoic). In consequence of this the stratigraphy diapason of oil and gas bearing of the north latitude is considerably wide. The prospect of oil and gas bearing in all region is related principally with continental slopes and turbidites sediments in its. Late Jurassic and early Cretaceous reservoirs would be the aim for deep drilling sediments. Wide distribution of late Cretaceous and early Tertiary prospects reservoirs of oil and gas is quite really so far as they are bedded in the shallow horizons. Also the prospect of oil and gas bearing at the margin of the basin is related to late Cretaceous and Tertiary sediments, to deposits of fan and diapirs salt.


2005 ◽  
Vol 45 (1) ◽  
pp. 349 ◽  
Author(s):  
G.M. Carlsen ◽  
K. Ameed R. Ghori

There are more than 131 giant and super-giant oil and gas fields with Palaeozoic source and reservoir that are similar to the Canning Basin. These include Palaeozoic basins of North America, North Africa, and the North Caspian Basin of Kazakhstan and Russia.The productivity of these Palaeozoic petroleum systems depends on timing of generation and preservation of charge. Thick Ordovician, Permian, and Triassic evaporite deposits played a very important role in creating and preserving the North American, north Caspian, and north African giant oil and gas fields, respectively.The Mesozoic–Tertiary charged Palaeozoic systems are typically more productive than the Palaeozoic charged systems as exemplified by the north African basins.The Ordovician sourced and reservoired giant oil fields of the North American Mid-Continent are also highly productive. Within the Canning Basin, Ordovician sourced oil has been recovered on the Barbwire Terrace (in Dodonea–1, Percival–1 and Solanum–1) on the Dampier Terrace (in Edgar Range–1 and Pictor–1) and along the Admiral Bay Fault Zone (in Cudalgarra–1, Great Sandy–1, and Leo–1).The Canning Basin may be the least explored of the known Palaeozoic basins with proven petroleum systems. The Palaeozoic basins of North America are the most explored with 500-wells/10,000 km2 compared to the Canning Basin with only 4-wells/10,000 km2.The presence of five oil fields, numerous oil and gas shows and the well density in the Canning Basin (200 wells in 530,000 km2) suggests that further exploration is warranted. Critical analysis of the distribution of source rock, reservoir, seal, timing of generation versus trap formation and post accumulation modification for each tectonic unit of the Canning Basin is required.


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