caa a22 4500 60618855X CHVBK 20210128100846.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10891-015-1317-0 doi (NATIONALLICENCE)springer-10.1007/s10891-015-1317-0 Pressure Field in the Process of Radial Filtration in a Nonuniform Orthotropic Stratum in the Asymptotic Approximation [Elektronische Daten] [A. Filippov, O. Akhmetova, M. Gubaidullin] Simple analytical formulas for definition of the pressure field, formed in the process of continuous withdrawal of a fluid from a nonuniform anisotropic stratum, in the zero and first approximations on the assumption that the fluid flow in the stratum is one-dimensional and linear were derived on the basis of the modified asymptotic method exact on average. The results of calculations of the pressure fields in such stratums by the formulas obtained are presented. Springer Science+Business Media New York, 2015 pressure field nationallicence filtration nationallicence asymptotic method nationallicence nonuniform orthotropic stratum nationallicence Filippov A. Institute of Applied Investigations, Academy of Sciences of Bashkortostan, 122 Gogol Str., 453130, Sterlitamak, Bashkortostan, Russia aut Akhmetova O. Branch of the Ufa State Oil Technical University, 49 Lenin Str., 453103, Sterlitamak, Bashkortostan, Russia aut Gubaidullin M. Institute of Applied Investigations, Academy of Sciences of Bashkortostan, 122 Gogol Str., 453130, Sterlitamak, Bashkortostan, Russia aut Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/6(2015-11-01), 1329-1340 1062-0125 88:6<1329 2015 88 10891 https://doi.org/10.1007/s10891-015-1317-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10891-015-1317-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Filippov A. Institute of Applied Investigations, Academy of Sciences of Bashkortostan, 122 Gogol Str., 453130, Sterlitamak, Bashkortostan, Russia aut NATIONALLICENCE 700 1- Akhmetova O. Branch of the Ufa State Oil Technical University, 49 Lenin Str., 453103, Sterlitamak, Bashkortostan, Russia aut NATIONALLICENCE 700 1- Gubaidullin M. Institute of Applied Investigations, Academy of Sciences of Bashkortostan, 122 Gogol Str., 453130, Sterlitamak, Bashkortostan, Russia aut NATIONALLICENCE 773 0- Journal of Engineering Physics and Thermophysics Springer US; http://www.springer-ny.com 88/6(2015-11-01), 1329-1340 1062-0125 88:6<1329 2015 88 10891