Effect of wettability on two-phase relative permeabilities and capillary pressures

Conference · Sat Jan 01 04:00:00 EST 1983 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5876879

Heiba, A A; Davis, H T; Scriven, L E

The percolation theory of 2-phase relative permeability at low capillary numbers (SPE-11015) is further developed to account for the physics of intermediate and mixed wettability in reservoir rocks. The elements of the theory are (1) a network representation of pore space connectivity; (2) a distribution function description of pore space geometry; (3) capillary pressure (i.e., quasistatic) and wettability criteria of allowability of the invading phase to pore segments according to their throat or body size; (4) a Bethe network approximation to pore space connectivity, to estimate occupancy-conditioned pore size distributions that follow from the preceding elements and lead to occupancy-conditioned distributions of segment volumes (for saturations) and hydraulic conductances (for permeabilities); and (5) a Bethe network transport path conductivity function for creeping flow of each phase that occupies continuously connected pore segments. Also included is the volume occupied by virtually stationary thin films and pendular structures of the more strongly wetting liquid. 39 references.

• OSTI ID: 5876879
• Report Number(s): CONF-8310121-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-12172
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENERGY SOURCES
ENHANCED RECOVERY
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
OIL WELLS
PERMEABILITY
PETROLEUM
POROSITY
PRESSURE DEPENDENCE
RECOVERY
RESERVOIR ROCK
TWO-PHASE FLOW
WELLS
WETTABILITY