Zobrazeno 1 - 4
of 4
pro vyhledávání: '"K. O. Shcherbakova"'
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 4, Pp 91-100 (2022)
Introduction. Torsional vibrations caused by drilling using a polycrystalline diamond compact (PDC) bit are analysed using wellbore data obtained under various drilling modes. The drilling caused by torsional vibrations are analysed. Two types of tor
Externí odkaz:
https://doaj.org/article/7099608fa78245aeb391687dd3524391
Autor:
K. O. Shcherbakova
Publikováno v:
Proceedings of higher educational establishments. Geology and Exploration. :29-38
Background. The production of oil and gas by horizontal wells, despite all its advantages, is subject to exploratory and operational complications. At the final stage of their development, such fields become hard-to-recover reserves. Production of oi
Autor:
Oxana Dmitrieva, K. O. Shcherbakova, E. V. Chernookaya, E. V. Piterkina, A. O. Makarov, R. G. Abdullov, A. S. Kornilov
Publikováno v:
Moscow University Chemistry Bulletin. 76:38-41
After the precipitation of ammonium uranyl tricarbonate (AUTC), the residual uranium concentration in the mother liquor is 1–5 g/L. We consider a decrease in the residual uranium concentration in the mother liquors at the stage of AUTC’s precipit
Publikováno v:
Radiochemistry. 62:173-176
Effect of acidity and hydrogen peroxide and ethanol concentrations on the degree of precipitation of uranium peroxide in solutions of various compositions was studied. The efficiency of the peroxide purification of uranium to remove REEs and strontiu