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International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Print: 2152-5102
ISSN Online: 2152-5110

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v27.i2-4.60
pages 248-269

Unsteady Flow in Nonlinear Fractured Reservoirs

Yu. A. Buyevich
CRSS, University of California, Santa Barbara, USA
V. S. Nustrov
Ural State University, Ekaterinburg, Russia
S. A. Plochoi
Ural State University, Ekaterinburg, Russia
V. V. Podoplelov
Ural State University, Ekaterinburg, Russia

ABSTRACT

A recently developed model is used to investigate flow problems concerning a fractured reservoir. The reservoir is modelled in two ways: 1) as macroscopically isotropic and subject to uniform overall compression; 2) as containing only flat fractures aligned in the horizontal plane which are under the action of a vertical overburden rock pressure. In both cases the reservoir can be elastically deformed as a result of the fractures contracting when the pressure drops in the fluid filling the fractures. The pressure field evolution is analyzed when either bottom-hole pressure or production rate is fixed. The processes of reservoir pressure depletion and recovery are also studied. The results obtained eliminate some limitations inherent in conventional approaches to fractured reservoir filtration and agree well with experimental evidence.


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