Simulation of Two-Phase Filtration Considering the Effect of the Periodic Load

Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy


Release:

2016, Vol. 2. №2

Title: 
Simulation of Two-Phase Filtration Considering the Effect of the Periodic Load


About the authors:

Sergey P. Rodionov, Dr. Sci. (Phys-Math.), Professor, Department of Multiphase Systems Mechanics, Tyumen State University; Head of Laboratory of Oil and Gas Mechanics, Tyumen Branch of Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the RAS; rodionovsp@bk.ru

Andrei Yu. Botalov, Cand. Sci. (Phys-Math.), Researcher, Tyumen Branch of Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the RAS; aybotalov@bk.ru

Dmitry Yu. Legostaev, Undergraduate Student, Institute of Physics and Technical Science, Tyumen State University; legostaevdmitrii@icloud.com

Abstract:

The geological materials containing hydrocarbons are under strain due to the pressure of the overlying layers. Field development processes have an impact on the reservoir stress-strain state, which leads to a change in reservoir properties of geological materials. To account for the influence of the processes occurring in the skeleton of the material on hydrocarbons production, the coupled geomechanical and hydrodynamic modeling of hydrocarbon extraction is used.

The purpose of this article is to study the influence of periodic pressures on the fluid filtration process. An example of such pressure in real reservoir systems can be seen in the gravitational tides of the earth’s crust. The paper presents the results of a one-dimensional solution of the problem of the displacement of oil by water. Harmonically changing gravitational tides of the earth’s crust were simulated by periodic lateral load on the reservoir.

Based on the calculations, it has been found that water injection mode has an impact on oil recovery under the conditions of periodic pressure. It is established that there is an optimum injection mode at which the maximum oil recovery is achieved.

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