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Flow field modelling near a well with a conductive fracture
Author(s) -
Li Y. C.,
Huang N. C.
Publication year - 1992
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1650150504
Subject(s) - poromechanics , fracture (geology) , mechanics , finite element method , materials science , plane stress , flow (mathematics) , electrical conductor , porous medium , geotechnical engineering , geology , composite material , thermodynamics , physics , porosity
In the technology of oil recovery the oil production rate can be increased by generation of a vertical sand‐filld conductive fracture on the wall of the well. Oil diffuses through the conductive fracture to the well. In this paper the seepage flow and isothermal deformation fields in both the formation and fracture and the oil production rate at the well are studied by modelling the formation as an infinite poroelastic medium saturated with a one‐phase compressible fluid. The fracture is treated as a one‐dimensional poroelastic medium. Darcy flows are considered in both the formation and fracture. The plane strain condition is imposed. Our solution is obtained numerically by a finite element method based on a variational principle. The accuracy of the analysis is studied by comparison of the numerical solutions of some problems with their analytical solutions. Since we are dealing with the transient flow problem of an infinite region, an extrapolation technique is employed to find the finite element solution. The production rate of a well with the conductive fracture is compared with that of a well without the conductive fracture.