Crude Oils of Domanik Genotype from Middle Devonian Deposits of the Timan-Pechora Oil-and-Gas Province

被引：0
|
作者：
Bushnev, D. A. [1 ]
Valyaeva, O. V. [1 ]
机构：
[1] Russian Acad Sci, Komi Sci Ctr, Ural Branch, Inst Geol, Syktyvkar 167982, Russia
来源：
PETROLEUM CHEMISTRY | 2023年 / 63卷 / 08期
关键词：
Timan-Pechora oil-and-gas province; biomarker hydrocarbons; carbon isotope composition; ORGANIC-MATTER; GEOCHEMISTRY; BASIN;
D O I：
10.1134/S0965544123060087
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The composition of biomarker hydrocarbons in crude oil samples from Middle Devonian deposits of the Western Tebuk, Dzh"er, and Michayu oil fields of the Omra-Lyzha saddle in the Timan-Pechora oil-and-gas province was studied. Significant effect of the Upper Devonian Domanik source rocks on the formation of the composition of these crude oils was revealed. The main parameters demonstrating the genetic relationship of the oils from Middle Devonian reservoirs with this source rocks are distribution of steranes C-27 : C-28 : C-29, ratio of isoprenoid to normal alkanes, and distribution of normal alkanes. All these characteristics sharply distinguish the crude oils under consideration from paraffinous oils syngenetic to Middle Devonian deposits, characteristic of deposits in the southern part of the Pechora-Kozhva megarampart.
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页码：917 / 924
页数：8
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