SPE Journal
Volume 15,
Number 4,
December 2010,
pp. 1003-1019
Summary
A coupled formulation for three-phase capillary pressure and relative
permeability for implicit compositional reservoir simulation is presented. The
formulation incorporates primary, secondary, and tertiary saturation functions.
Hysteresis and miscibility are applied simultaneously to both capillary
pressure and relative permeability. Two alternative three-phase capillary
pressure formulations are presented: the first as described by Hustad (2002)
and the second that incorporates six representative two-phase capillary
pressures in a saturation-weighting scheme. Consistency is ensured for all
three two-phase boundary conditions through the application of two-phase data
and normalized saturations.
Simulation examples of water-alternating-gas (WAG) injection are presented
for water-wet and mixed-wet saturation functions. 1D homogeneous and 2D and 3D
heterogeneous examples are employed to demonstrate some model features and
performance.
© 2010. Society of Petroleum Engineers
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History
- Original manuscript received:
20 October 2009
- Meeting paper published:
20 October 2009
- Revised manuscript received:
31 December 2009
- Manuscript approved:
2 March 2010
- Published online:
27 July 2010
- Version of record:
2 December 2010
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