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Formation Water Salinity and Macro-Components’ Composition for Bazhenov, Achimov and Georgiev Formations from the Results of Water Extractстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
- Авторы: Kazak E.S., Kharitonova N.A., Kazak A.V.
- Журнал: Moscow University Geology Bulletin
- Том: 73
- Номер: 6
- Год издания: 2018
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 570
- Последняя страница: 581
- DOI: 10.3103/S0145875218060066
- Аннотация: This paper presents a reliable dataset on formation water salinity (mineralization) and salt composition for low-permeable (tight) shale rocks of the Bazhenov, Achimov and Georgiev formations for the first time. The data were obtained via laboratory analysis of aqueous extracts from rock samples before and after hydrocarbon extraction (cleaning). Thermodynamic modeling of the obtained solutions with a number of minerals was carried out and a correlation analysis of the Na/Cl, Ca/SO4, Mg/SO4, Ca/Cl, Ca/HCO3, and Fe/SO 4 ratios was performed. It was established that the concentrations of certain macro-components, including Ca, Mg, Fe, hydrocarbonate, and sulfate ion in pore water cannot be reliably determined using aqueous-extract data, while at the same time, a reliable estimate of the minimal formation water salinity could be made. The need to use non-extracted core samples with the maximum preserved residual water saturation to study a pore water composition of tight shale rocks is shown.
- Добавил в систему: Казак Екатерина Сергеевна