Basic Petroleum Fluids
What defines petroleum fluids and products? What contents make up petroleum? The basic petroleum fluids quiz below dives deeper into the details with questions to help assess your knowledge on the subject. All the best.
- 1.
Calculate the API Gravity of an oil with a density of 6.95 Ib/gal.
Correct Answer
38.1 - 2.
Calculate the reserves in Stock Tank Barrels for a 160 acre reservoir with a porosity of 15% and water saturation of 34%. The reservoir is 20 feet thick with a formation water resistivity of .12 ohm-meters at 70F. The formation temperature is 220F and the formation volume factor is 1.3.
Correct Answer
1890564.9 - 3.
During which era does the majority of today's hydrocarbon production come from?
- A.
Cenozoic
- B.
Mesozoic
- C.
Pre-Combrian
- D.
Palezoic
- E.
Your mom
Correct Answer
B. Mesozoic -
- 4.
What type of bacteria does not require free oxygen to live?
- A.
Anaerobic
- B.
Hydrocarboxyl
- C.
Aerobic
- D.
Mesocarboxyl
Correct Answer
A. Anaerobic -
- 5.
Name the 4 eras of geologic time.
- A.
Cenozoic
- B.
Paleozoic
- C.
Mississippian
- D.
Pre-Cambrian
- E.
Triassic
- F.
Quaternary
- G.
Jurassic
- H.
Mesozoic
Correct Answer(s)
A. Cenozoic
B. Paleozoic
D. Pre-Cambrian
H. Mesozoic -
- 6.
How old is the Earth?
- A.
460 Million Years
- B.
4.6 Million Years
- C.
4.6 Billion Years
- D.
46 Million Years
Correct Answer
C. 4.6 Billion Years -
- 7.
What was the majority of today's hydrocarbons formed from?
- A.
Volcanoes
- B.
Accumulated Organic Material
- C.
Meterorites
- D.
Radioactive Decay of Uranium
Correct Answer
B. Accumulated Organic Material -
- 8.
What is the most common primary source rock for hydrocarbons?
- A.
Diatomites
- B.
Chert
- C.
Shale
- D.
Sandstones
- E.
Dolomites
Correct Answer
C. Shale -
- 9.
Where is the material for hydrocarbon generation thought to accumulate?
- A.
Meteorites
- B.
The Highest Mountaintops
- C.
River Channels
- D.
Volcanoes
- E.
Warm Shallow Seas
Correct Answer
E. Warm Shallow Seas -
- 10.
What is the name of the supercontinent which existed during the late Paleozoic and early Mesozoic eras?
- A.
Jurassic
- B.
Pangaea
- C.
Tectonica
- D.
Ageana
- E.
Quaternaria
Correct Answer
B. Pangaea -
- 11.
During which era did the dinosaurs live?
- A.
Paleozoic
- B.
Mesozoic
- C.
Jurassic
- D.
Triassic
- E.
Cenozoic
- F.
Pre-Cambrian
- G.
Quarternary
- H.
Jurassic Park
Correct Answer
B. Mesozoic -
- 12.
During which era were the majority of present day reservoirs deposited?
- A.
Mesozoic
- B.
Cenozoic
- C.
Triassic
- D.
Jurassic
- E.
Pre-Cambrian
Correct Answer
A. Mesozoic -
- 13.
In what type of environment is the source material for hydrocarbon thought to accumulate?
- A.
Rivers
- B.
Sea bed
- C.
Mountain Top
- D.
Alluvial Fans
- E.
Dry Lake Bed
Correct Answer
B. Sea bed -
- 14.
What is gas formed at high temperatures called?
- A.
Distilligenic
- B.
Hermatogenic
- C.
Biogenic
- D.
Thermogenic
Correct Answer
D. Thermogenic -
- 15.
What is thought to be the primary source of organic material for hydrocarbon generation?
- A.
Plankton
- B.
Trilobytes
- C.
Dinosaurs
- D.
Trees
Correct Answer
A. Plankton -
- 16.
What would the API Gravity be of an oil with a density of 6.87 Ib/gal?
- A.
39
- B.
40
- C.
38
- D.
41
- E.
42
Correct Answer
B. 40 -
- 17.
What does an oil's formation volume factor reflect?
- A.
The expansion of the volume because of the decrease in temperature
- B.
The decrease of the volume because the pressure is decreased
- C.
The expansion of the volume because the pressure is decreased
- D.
The decrease of the volume because of the release of dissolved gases in the oil
Correct Answer
D. The decrease of the volume because of the release of dissolved gases in the oil -
- 18.
Will 1,000 barrels of a typical oil brought to the surface take up more, less or the same amount of space as it did downhole?
- A.
More
- B.
Less
- C.
The Same
Correct Answer
B. Less -
- 19.
As the density of an oil gets lighter, what will happen to the value of API Gravity?
- A.
It will increase
- B.
It will decrease
- C.
It will remain the same
Correct Answer
A. It will increase -
- 20.
What is the oil that contains more than 1% Sulfur called?
- A.
Sweet
- B.
Light
- C.
Sour
- D.
Intermediate
- E.
Strong
- F.
Delicious
Correct Answer
C. Sour -
- 21.
How is the drainage area of the well normally determined?
- A.
From pressure transient testing
- B.
From a porosity logging tool
- C.
From a full bore core of the reservoir
- D.
From a resistivity tool
- E.
From surface seismic
Correct Answer(s)
A. From pressure transient testing
E. From surface seismic -
- 22.
Determine reserves in stock tank barrels for the following well:A 30 foot thick limestone with drainage radius of 1,290 feet, 10% porosity, 21% water saturation and a formation volume factor of 1.15. There are 43,560 square feet in one acre.
Correct Answer(s)
1918852.9 - 23.
How is the porosity of the formation normally determined?
- A.
From a full bore core of the reservoir
- B.
From pressure transient testing
- C.
From a resistivity tool
- D.
From a porosity logging tool
- E.
From surface seismic
Correct Answer
D. From a porosity logging tool -
- 24.
What is the 7758 constant for the reserves equation?
- A.
Converts Acre-ft to Stock Tank Barrels
- B.
Converts gallons to Stock Tank Barrels
- C.
Corrects for gas oil ratio
- D.
Corrects for temperature effects of bringing the oil to surface conditions
Correct Answer
A. Converts Acre-ft to Stock Tank Barrels -
- 25.
Gas developed in shallow sources is called
- A.
Anaerobic
- B.
Thermogenic
- C.
Biogenic
- D.
Catagenesis
Correct Answer
C. Biogenic -
- 26.
Usually the source beds are older and deeper than the reservoir rock itself.
- A.
True
- B.
False
Correct Answer
A. True -
- 27.
What is the most commonly used density scale for oil?
- A.
API Gravity Scale
- B.
Specific Gravity Scale
- C.
SPE Gravity Scale
Correct Answer
A. API Gravity Scale -
- 28.
Specific gravity is the ratio of a substance's density to the density of fresh water.
- A.
True
- B.
False
Correct Answer
A. True -
- 29.
The weight of the hydrocarbon is greatly influenced by the
- A.
Paraffin content
- B.
Scale content
- C.
Dissolved gas in the oil
- D.
Additive content
Correct Answer
C. Dissolved gas in the oil -
- 30.
Increasing the dissolved gas causes the oil to
- A.
Have a lower viscosity
- B.
Have a higher viscosity
- C.
Have a lower density
- D.
Have a higher density
Correct Answer
A. Have a lower viscosity -
- 31.
The lower the API gravity gets means the lighter the oil gets.
- A.
True
- B.
False
Correct Answer
B. False -
- 32.
As the density of an oil gets lighter, the API gravity will increase.
- A.
True
- B.
False
Correct Answer
A. True -
- 33.
What causes dissolved gas to come out of a solution?
- A.
Increasing pressure
- B.
Decreasing pressure
Correct Answer
B. Decreasing pressure -
- 34.
Solution Gas-Oil Ratio (GOR) refers to the amount of surface gas that can be dissolved in a stock tank barrel of oil when brought to a specific pressure and temperature.
- A.
True
- B.
False
Correct Answer
A. True -
- 35.
Hydrocarbons with little or no sulfur are called
- A.
Sour
- B.
Sweet
- C.
Light
- D.
Heavy
Correct Answer
B. Sweet -
- 36.
The sulfur keeps the oil from being corrosive.
- A.
True
- B.
False
Correct Answer
B. False -
- 37.
Special alloy wireline should be used in low sulfur wells.
- A.
True
- B.
False
Correct Answer
B. False -
- 38.
You can recover every barrel of oil from a reservoir.
- A.
True
- B.
False
Correct Answer
B. False -
- 39.
Common recovery efficiencies are
- A.
10% - 30%
- B.
30% - 60%
- C.
60% - 80%
- D.
80% - 100%
Correct Answer
B. 30% - 60% -
- 40.
Thickness of a reservoir is determined by the
- A.
Well logs
- B.
Seismic surveys
- C.
Pressure transient analysis
- D.
Cores
Correct Answer
A. Well logs -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Jan 12, 2018Quiz Edited by
ProProfs Editorial Team -
Jul 29, 2014Quiz Created by
Taylor
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