Formation Conditions of Host Rocks and Veins of Productive Deposits of the Astrakhan Gas–Condensate Field
- Авторы: Sokerina N.1, Zykin N.2, Shanina S.1, Valyaeva O.1, Isaenko S.1, Sokerin M.1
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Учреждения:
- Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
- JSC Gazprom VNIIGAZ
- Выпуск: Том 484, № 1 (2019)
- Страницы: 58-60
- Раздел: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/194535
- DOI: https://doi.org/10.1134/S1028334X19010070
- ID: 194535
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Аннотация
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.
Об авторах
N. Sokerina
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar, 167000
N. Zykin
JSC Gazprom VNIIGAZ
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar
S. Shanina
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar, 167000
O. Valyaeva
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar, 167000
S. Isaenko
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar, 167000
M. Sokerin
Geological Institute, Komi Science Center, Ural Branch, Russian Academy of Sciences
Email: sokerina@geo.komisc.ru
Россия, Syktyvkar, 167000