TEST YOUR KNOWLEDGE Answers on Page 41
Robert G. Font, CPG-03953
rgfont@cs.com
1. In our field work we find fossil remains of “dimetrodon.” Which of the following applies? a) This animal was a Carboniferous to Permian herbivore characterized by a sail on its back. b) This animal was a theropod dinosaur of the Jurassic Period. c) This animal was a carnivore of the Permian age. d) Man, let’s say that paleontology is just not my strength….
2. “Barchan: sand dunes: a) Are crescent-shaped with horns pointing upwind that are commonly found in coastal regions.
b) Are crescent-shaped with horns pointing downwind that are commonly found in areas of constant wind and limited sand supply.
c) Are long, symmetrical and ridge-shaped that are commonly found in areas of constant wind an abundant sand supply.
d) Dude, let’s say that aeolian deposits are not really my forte….
3. We have drilled an important well and are evaluating it for potential hydrocarbon-bearing zones. Which of these tools would be best to help us differentiate between gas, oil and water and would provide us with valuable information regard- ing bound fluid and movable fluid?
a) DLL-MLL. b) FDC-CNL. c) MRIL. d) Hey hombre, let’s simply say that well logs are not really my talent….
4. The “Modified Mercalli Scale” has been used to describe the intensity of: a) Floods. b) Erosion. c) Earthquakes. d) Fella, let’s just say that earth processes are not really my strong suit.
5. Consider a 26-foot thick layer of saturated sand (Hss) which overlies a 12-foot section of saturated clay (Hsc). The top of the sand is under 10 feet of water (Hw). The sand and clay layers lie horizontally. The
unit weight of water (w), saturated sand (ss) and saturated clay
(sc) are 62.5, 125 and 117 pounds per cubic foot (pcf), respectively. Based on these, what are the effective vertical stress (P’) and pore- water pressure (u) at the base of the clay in pounds per square foot (psf)?
a) P’ = 2,279 psf and u = 3,000 psf b) P’ = 3,209 psf and u = 3,915 psf c) P’ = 4,103 psf and u = 4,073 psf d) Effective what? My pores are under no pressure, dude.
36 TPG •
Jul.Aug.Sep 2017
www.aipg.org
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