25th International Meeting on Organic Geochemistry IMOG 2011

P-112
Hydrocarbon systems of the Russian Arctic continental shelf in
view oil and gas presence forecast
Eric Galimov, Alla Nemchenko-Rovenskaya, Vyacheslav Sevastyanov, Tatyana
Nemchenko
Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow, Russian Federation
(corresponding author:vsev@geokhi.ru)
Russia is blessed with the largest area in the world
and major part of this area in the Arctic zone. There
on the Arctic shelf the abundant resources of
hydrocarbons are concentrated that makes this area
one of the most important sources of hydrocarbons in
the XXI century. Fundamental geochemical research
– carbon isotopic analysis, gas-phase
chromatography, chomato-mass–spectrometry,
microelement analysis and tests Rock-Eval pyrolysis
has made it possible to evaluate the oil and gas
potential of Arctic from viewpoint of its genetics.
Based on the comparative analysis of
hydrocarbons of Arctic it made conclude that the
hydrocarbon potential of Arctic (Barents sea, from
Svalbard)
Archipelago Fran Josev Land is significal.
Considerable volumes of the sedimentary mantie
concentrated in negative structures suggest geat
hydrocarbon generating potential of the province
while vast positive structures adjacent to these
generation sources and reginal collectors (reservoirs)
and seals contained to these generation sources
and regional collectors and seals contained in the
section prove great accumulation capacities within the
boundaries of the entire province. These factors give
reason to view it as one of the most promising
petroleum provinces of Russia.
The Arctic shelf -a new highly prospective region on
the XXI century. The Russian Arctic shelf with total
area of more than 6 million square kilometers. The
unique oil and gas fields Prirazlomnoe oil field,
Shtokmanovskoe gas-condensate, Russanovskoe
and Leningradskoe gas field are comparable with
Yamal giant gas fields. The Kara Sea water area is
the largest by hydrocarbon resources volume and
density. Analysis of the Arctic hydrocarbons
geochemistry on the basis hydrocarbons and rocks
analytical investigations: carbon isotopic composition,
gas chromatography, V and Ni content,
chromatography –mass spectrometry, biomarkers,
generation potential according to Rock-Eval data of oil
and gas fields allowed to work out the complex of
geological and geochemical criteria for scientific
grounds of oil and gas content prospect and
elaboration of future exploration trends on Russian
Arctic shelf.
So further increase of hydrocarbon resources in the
West –Siberian petroleum province is connected with
the development of its Arctic shelf with potential
resources estimated at 15-20 trillion m3. According
prognostic estimation of reserves aquatorial part of
the West Siberian is the largest on size and density
of resources (60 trl.m3 of gas). Rusanovskoe and
Leningradskoe fields – reserves 9trl.m3-stand in on
line with the giant gas fields of Jamal peninsular. The
unique and largest gas fields of the Northern West
Siberia .As well as the first discoveries in the Kara
Sea, are restricted to the coal-bearing Aptian-Albian
Cenomanian complex.
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