Petroleum Engineering Test 1 Nddc Scholarship
Question 41
LNG's high energy density makes it cost effective to transport in areas without pipelines. What type of vessel must be used to transport LNG?
Correct answer: C. Cryogenic Sea Vessel
LNG must be transported in cryogenic sea vessels because it is stored at extremely low temperatures (around -162 °C). These vessels are specially designed with insulated tanks to maintain such cryogenic conditions and prevent the LNG from warming and evaporating.
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Question 42
One of these is not a mechanism that cause a reservoir to produce in it's initial phase.
Correct answer: D. None of these
All the listed mechanisms — Gas Cap Drive, Solution Gas Drive, and Gravity Drive — are valid primary reservoir drive mechanisms during the initial phase of production. Therefore, none of them is "not a mechanism," making Option D the correct choice.
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Question 43
The measure of heat energy to raise the temperature of 1 pound of water by 1 degree Fahrenheit is known as what?
Correct answer: B. BTU
BTU stands for British Thermal Unit, which is the amount of heat energy required to raise the temperature of 1 pound of water by 1°F.
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Question 44
The analysis of pressure changes over time, especially those associated with small variations of volume of a fluid, is called what as it's often related to well testing?
Correct answer: C. Pressure Transient Testing
Pressure Transient Testing involves analyzing pressure changes over time in a reservoir, particularly in response to production or injection. It is a key technique in well testing used to evaluate reservoir properties like permeability and skin factor.
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Question 45
What is welded to the first string of casing in the well and attaches the bop stack to the well?
Correct answer: B. Casing Heading
The casing heading (more commonly referred to as the casing head) is welded or attached to the first string of casing. It serves as the base for the blowout preventer (BOP) stack and supports subsequent casing strings.
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Question 46
Which of these is not the type of flow regimes that can be used in underbalanced drilling?
Correct answer: D. aerosone
In underbalanced drilling (UBD), common flow regimes include dry air, mist, foam, and aerated fluids. "Aerosone" is not a recognized flow regime in UBD and appears to be a misspelling or incorrect term.
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Question 47
What problem plagues bits in some formations where too much weight on bit is applied?
Correct answer: A. Bit balling
Bit balling occurs when sticky formation materials (like clays or shales) adhere to the bit, especially under excessive weight, reducing its cutting efficiency and making drilling less effective.
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Question 48
What is the name of the correlation used for estimating fracture pressure and pore pressure?
Correct answer: A. Eaton correlation
Eaton's correlation is widely used in the oil and gas industry to estimate fracture pressure and pore pressure based on sonic log data, overburden pressure, and other formation parameters.
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Question 49
Dake defines compaction drive as the expulsion of reservoir fluids dueto the dynamic reduction of what?
Correct answer: B. Pore volume
Dake defines compaction drive as the expulsion of reservoir fluids due to the dynamic reduction in pore volume as a result of increasing overburden pressure when reservoir pressure declines.
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Question 50
What of these is not a slugging type?
Correct Answer: C. Graining
Graining is not recognized as a type of slugging. Common slugging types include hydrodynamic, terrain, and severe slugging.
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