00626naa#a2200181#i#450# EN\\bibl\57391 20241222042254.7 2949-2440 20230228b2023####ek#y0engy0150####ca RU Gas-driven downhole pumping unit for oil production from directional and horizontal wells Journal article Astrakhan Astrakhan State Technical University 2023 5 с. Journal article local Взрывчатые вещества. 662.2 Shishkin Nickolai Dmitrievich Marysheva Marina Aleksandrovna vestnik.astu.org