Physicochemical Properties and Genesis of the Asphaltites of Orenburg Oblast

被引：19
|
作者：
Kerimov, V. Yu. [1 ]
Gordadze, G. N. [1 ]
Lapidus, A. L. [1 ]
Giruts, M. V. [1 ]
Mustaev, R. N. [1 ]
Movsumzade, E. M. [2 ]
Zhagfarov, F. G. [1 ]
Zakharchenko, M. V. [1 ]
机构：
[1] Gubkin State Univ Oil & Gas, Moscow 117917, Russia
[2] Ufa State Petr Technol Univ, Ufa 450062, Bashkortostan, Russia
来源：
SOLID FUEL CHEMISTRY | 2018年 / 52卷 / 02期
关键词：
OILS; OCCURRENCES; GAS;
D O I：
10.3103/S0361521918020064
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this article, the results of the studies of the physicochemical properties and genesis of asphaltites from the deposits of Orenburg oblast are considered. Based on the data of a study on the distribution of hydrocarbon biomarkers (n-alkanes, isoprenanes, steranes, and terpanes), it was found that deposit formation occurred in carbonate layers under reducing conditions. The distribution of steranes and terpanes confirmed a sufficient maturity of the asphaltite. The C-28/C-29 sterane ratio of 0.31 corresponds to Silurian age according to Grantham or to Silurian-Devon age according to the pregnane coefficient (a ratio of the sum of C-21-C-22 pregnanes to the sum of C-21-C-22 pregnanes and C-27-C-29 regular steranes) of 9.0%. Thus, it is likely that asphaltites from the Ivanovka deposit in Orenburg oblast were redeposited in Silurian/Devon source rock formations.
引用
收藏
页码：128 / 137
页数：10
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