GEOE 301, Spring, 2015 David Dugas, Student ID: 0961858, No Group
GEOE 301, Spring, 2015
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David
Dugas, Student ID: 0961858, No Group (DEDP Student)
Assignment,
Due 02/24/2015
1.A Dean-Stark extraction is performed on a North Sea chalk
core plug sample, which extracted 5.77 cm3 of water. The core plug has a porosity of 36.1% and a bulk
volume of 24.5 cm3. The
wet and dry weights of the sample are 50.64 and 42.33 g, respectively. The gas,
oil, and water densities are 0.001, 0.75, and 1.035 g/cm3, respectively. Calculate the gas, oil, and water
saturations in the core plug sample.
2.During the drilling operations of an oil well, invasion of
the mud filtrate took place in the near-wellbore region, resulting in an
outward invasion diameter of 5 ft. The permeability of the invaded zone is
determined to be 25 mD, whereas the permeability of the uninvaded zone is 100
mD. The radius of the wellbore is 4.5 in. Determine the skin factor.
