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Questions and Answers
What happens to the actual grain size as pore pressure is reduced in a compressible reservoir?
What happens to the actual grain size as pore pressure is reduced in a compressible reservoir?
- The grain expands (correct)
- The grain remains unchanged
- The grain shrinks
- The grain becomes more porous
What effect does overburden pressure have on pore volume in less competent formations as reservoir pressure declines?
What effect does overburden pressure have on pore volume in less competent formations as reservoir pressure declines?
- Reduces pore volume (correct)
- Causes pore pressure to rise
- Maintains pore volume
- Increases pore volume
What is the approximate compressibility of Quartz in a compressible reservoir?
What is the approximate compressibility of Quartz in a compressible reservoir?
- 2 x 10^-5 vol/vol/psi
- 6 x 10^-7 vol/vol/psi
- 4 x 10^-6 vol/vol/psi (correct)
- 1 x 10^-4 vol/vol/psi
Which of the following statements is true regarding the compressibility of grains in a reservoir?
Which of the following statements is true regarding the compressibility of grains in a reservoir?
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How does reducing pore pressure affect the porosity of a compressible reservoir?
How does reducing pore pressure affect the porosity of a compressible reservoir?
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