00636naa#a2200193#i#450# EN\\bibl\75632 20240513122328.1 2949-2440 20240301b2024####ek#y0engy0150####ca RU Investigation of the producing wells water content in the Demyanovskoye field Journal article Astrakhan Astrakhan State Technical University 2024 6 с. Journal article local Горное дело. 622 Nurmakova Janna Ibragimovna Lyamina Natalya Fyodorovna Fayzulaev Eldar Ruslanovich vestnik.astu.org