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The capillary pressure can be transformed into oil column height under formation conditions; (7) can be written into the following form:
Expected capillary pressure change during C[O.sub.2] dissolution in C[O.sub.2] storage is calculated by measured initial and final contact angle values shown in Figure 3.
To overcome this problem, the wetting front capillary pressure for a soil of well-identified texture can be obtained through the bubbling pressure in function of the soil water content at saturation (Saxton et al., 1986) and the contents of sand, clay and organic matter (Saxton and Rawls, 2006).
Lohne, "Effect of interfacial tension on water/oil relative permeability and remaining saturation with consideration of capillary pressure," in Proceedings of the SPE EUROPEC/EAGE Annual Conference and Exhibition, SPE-143028-MS, Vienna, Austria, May 2011,
[([DELTA][P.sub.c]).sub.m] = Maximum capillary pressure difference generated within capillary wicking structure between wet and dry point
Nevertheless, for speeds higher than 5 m/min, where [DELTA][p.sub.3U] is small, the motional pressure gradient [DELTA][p.sub.12] has to eliminate the downstream capillary pressure [DELTA][p.sub.D1].
In response, the radius of curvature of the meniscus decreases so as to provide a higher capillary pressure that matches the total system pressure drop.
Mason (26) corrected Brown's derivation by realizing that the capillary pressure and the elastic response do not act over the same areas to find:
First, tissue interface pressures do not directly measure internal tissue and capillary pressures. We are not implying that an at-risk area is ischemic, but we feel these areas are at-risk due to elevated interface pressures.
FFP = free flow pressure, PC = peritubular capillary pressure. AR =afferent resistance.
where [S.sub.e] is the effective saturation calculated with residual saturations, [lambda] and [p.sub.b] are constants realized from intercept and slope, [lambda] means pore size distribution, [p.sub.b] is interpreted as maximum capillary pressure, the [p.sub.c] is the capillary pressure which represents pressure difference between wetting phase pressure and nonwetting phase pressure.
The difference between the nonwetting phase and wetting phase pressures is described by the capillary pressure: