MODELING PRESSURE FIELDS IN A PETROLEUM RESERVOIR TAKING INTO ACCOUNT THE CHANGE OF LIQUID LEVEL IN THE WELL

Autor:	O. V. Akhmetova, Aleksey A. Kovalskiy, A. I. Filippov, M. A. Zelenova
Rok vydání:	2021
Předmět:	Petroleum engineering 020209 energy 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Environmental science 02 engineering and technology 01 natural sciences Microbiology Petroleum reservoir 010305 fluids & plasmas
Zdroj:	Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy. 7:95-112
ISSN:	2500-3526 2411-7978
Popis:	This article presents a numerical model of pressure fields during filtration of reservoir fluid, which accounts for the effect of the well. The mathematical formulation of the problem under consideration includes the equation of piezoconductivity in a cylindrical coordinate system and differs in a non-classical boundary condition obtained from the ratio of the balance of mass and momentum. The authors compare the numerical calculations and the analytical solution constructed in the Laplace — Carson image space. Den Iseger’s numerical algorithm is used to convert it to the original space. As a result of the comparison, the area of applicability of the computational experiment was determined. It is shown that in the case of a limited reservoir, the exact solution of the problem coincides with a numerical experiment over the entire domain of definition. In the case of an infinite reservoir, the numerical model is applicable only in the region of small times, the dimensions of which are determined by the values of the right boundary and the radial coordinate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb862e4b1911f6e49aef923450d780b1 https://doi.org/10.21684/2411-7978-2021-7-2-95-112 Zobrazit plný text záznamu