Question: PROBLEM 1 A thick, subsurface formation contains an oil accumulation above an aquifer. A core sample ( porosity = 0 . 1 2 and k

PROBLEM1
A thick, subsurface formation contains an oil accumulation above an aquifer. A core sample (porosity=0.12 and k=80 mD) from Well#1 in the formation has the capillary pressure curve shown in the figure below. Well logs and core analysis establish the WOC at 5,023 ft below sea level. The following additional data at formation conditions are available:
Oil density: 43.5 lb/ft^3
Water density: 64.1 lb/ft^3
Oil/water interfacial tension (IFT): 50 dynes/cm
Oil/water/rock contact angle: 55\deg
Calculate:
a. The connate water saturation (S_wc).
b. Depth of the Free Water Level (FWL).
c. Thickness of the transition zone.
d. Depth to reach 50% oil saturation. ((SOLVE ALL PARTS AND CALCULATE TO FIND FINAL ANSWERS))
PROBLEM 2
The formation in Problem #1 has a porosity-permeability transform of k=3.649*^1.8(k in Darcys). A core sample from Well#2 in the same formation shows a porosity of 0.06. Assuming the same depth of the FWL, what is the depth of the 50% oil saturation in Well#2?(SOLVE)

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