TY - JOUR
T1 - An improved analytical solution for interface upconing around a well
AU - Nordbotten, Jan M.
AU - Celia, Michael Anthony
PY - 2006/8
Y1 - 2006/8
N2 - Interface models of two-phase flow to a well usually apply vertical equilibrium assumptions to capture the vertical pressure variation in the two fluids. When large gradients in interface height occur, this leads to poor approximations. To deal with large-gradient interfaces, a variety of correction factors have been proposed on the basis of single-phase flow analogies. Herein we propose to include the effects of vertical flow directly through a nonlinear vertical pressure variation. This more complex formulation captures significantly more of the flow dynamics in the near-well region.
AB - Interface models of two-phase flow to a well usually apply vertical equilibrium assumptions to capture the vertical pressure variation in the two fluids. When large gradients in interface height occur, this leads to poor approximations. To deal with large-gradient interfaces, a variety of correction factors have been proposed on the basis of single-phase flow analogies. Herein we propose to include the effects of vertical flow directly through a nonlinear vertical pressure variation. This more complex formulation captures significantly more of the flow dynamics in the near-well region.
UR - http://www.scopus.com/inward/record.url?scp=33749397208&partnerID=8YFLogxK
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U2 - 10.1029/2005WR004738
DO - 10.1029/2005WR004738
M3 - Article
AN - SCOPUS:33749397208
SN - 0043-1397
VL - 42
JO - Water Resources Research
JF - Water Resources Research
IS - 8
M1 - W08433
ER -