Formation Conditions of Host Rocks and Veins of Productive Deposits of the Astrakhan Gas–Condensate Field
- Autores: Sokerina N.1, Zykin N.2, Shanina S.1, Valyaeva O.1, Isaenko S.1, Sokerin M.1
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Afiliações:
- Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
- JSC Gazprom VNIIGAZ
- Edição: Volume 484, Nº 1 (2019)
- Páginas: 58-60
- Seção: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/194535
- DOI: https://doi.org/10.1134/S1028334X19010070
- ID: 194535
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Resumo
One- (gas) and two-phase (aqueous solution plus gas) inclusions are studied in calcite taken from the Cheremshan horizon of the Bashkirian stage at a depth of 4215–4217 m in the Pravoberezhnaya-1 borehole. It is established that their homogenization temperatures are within 100–134°С, which is possibly close to the mineral formation temperature. Calcite veinlets were formed with the participation of a hydrocarbonate–calcium fluid enriched in magnesium chlorides. Inclusions in calcite mainly contain CO2, CH4, and H2S. The gas composition of the inclusions in limestone differs in an elevated CO2 content and the presence of CO with subordinate CH4 and H2S.
Sobre autores
N. Sokerina
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Autor responsável pela correspondência
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar, 167000
N. Zykin
JSC Gazprom VNIIGAZ
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar
S. Shanina
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar, 167000
O. Valyaeva
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar, 167000
S. Isaenko
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar, 167000
M. Sokerin
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Rússia, Syktyvkar, 167000