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

页码：128 / 137

页数：10

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