Numerical simulation of hysteretic flow in porous media
The simulation of multi-cycle drainage-imbibition processes in hydrophilic rock is described. The theory of 2-phase immiscible displacement is extended to cover the phenomena of dynamic hysteresis in residual phase saturations, relative permeability, and capillarity. Semi-empirical equations are given for the loci of the dynamic hysteresis envelopes and scanning loops spanning the domains of relative permeability and capillarity. An algorithm is presented to track the saturation history and to select the appropriate subset from the set of semi-empirical equations describing hysteretic relative permeability and capillarity. The application of the computational techniques is demonstrated by simulation of a semi-hypothetical reservoir. (17 refs.)
- Research Organization:
- Northern Natural Gas Co; Oklahoma State Univ
- OSTI ID:
- 5373075
- Report Number(s):
- CONF-690997-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE2693; ISSN SEAPA
- Country of Publication:
- United States
- Language:
- English
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