In this blog you will find the correct answer of the Coursera quiz Oil & Gas Industry Operations and Markets Coursera Answer mixsaver always try to brings best blogs and best coupon codes

Week- 1

Oil and Gas Exploration



1. What is the primary source of oil and gas?

  • Eroded sediments
  • Marine plankton
  • Dinosaur remains
  • Ancient swamps

2. What component of a hydrocarbon system must exist in order for there to be oil and/or gas?

  • A trap
  • A reservoir
  • A source rock
  • A migration pathway

3. Prior to the shale gas and shale oil revolution, shale was considered to be a poor reservoir rock because of its low ________________.

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4. What technology is used to image rock layering in the subsurface over regions extending many miles/kilometers?

  • Seismic data
  • Gravity data
  • Well log data
  • Magnetic data

5. A lease must first be obtained from the land company agent before drilling for oil and gas.

  • True
  • False

6. What isolates the interior of an oil/gas well from the surrounding rock and fluids?

  • Drilling mud
  • Drill cuttings
  • Cemented casing
  • The blowout preventer

7. The oil window is primarily defined by a range in which of the following?

  • Depth
  • Liquid content
  • Temperature
  • Organic matter in rock

8. In which of the following geologic settings do oil and gas deposits first form?

  • Large rivers
  • Deserts
  • Shallow seas
  • Mountain ranges

9. Which of the following technological innovations has reduced the number of drilling rigs needed to find and extract oil and gas?

  • Diamond tip drill bits
  • High-speed drill rigs
  • Fracking
  • Horizontal drilling




1. In the oil and gas industry, what is a specific subsurface site where oil and gas might be found called?

  • A prospect
  • A structure
  • A play
  • A migration pathway

2. Production rates from an oil/gas well initially decline because of a loss of what?

  • Reservoir pressure
  • Gas
  • Water
  • Oil

3. What two substances are used to extract oil during the secondary recovery phase?

  • Natural gas and water
  • Carbon dioxide and water
  • Soap and water

4. What is increasingly being used as an injection gas in tertiary oil recovery?

  • Water
  • Natural gas
  • Carbon dioxide
  • Soap

5. After tertiary recovery methods have been applied to an oil field, how much oil is typically still left in the reservoir?

  • 0–5%
  • 10–20%
  • 20–30%
  • 40–60%

6. In tertiary recovery, the remaining oil is freed from its adhesion to sediment grains by…

  • Fluid flow
  • Pressurization
  • Reducing its viscosity
  • Increased pumping

7. Drilling of what type of additional wells turn an economic well into an oil field?

  • Dryholes
  • Injection
  • Development
  • Wildcat

8. What does the history of production rates for a large region or even country generally look like over a long time?

  • Exponential decline
  • Bell-shaped curve
  • Box-shaped curve
  • Linear rise


Processing and Refining


1. Wet gas is rich in what?

  • Condensate
  • Natural gas liquids
  • Water
  • Oil

2. What is a very common contaminant that must be removed from both natural gas and oil?

  • Sulfur
  • Carbon dioxide
  • Particulate matter
  • Salt

3. Methane gas is almost pure after it has been processed.

  • True.
  • False.

4. What is the core process in refining crude oil into petroleum products?

  • Reforming
  • Coking
  • Alkylation
  • Distillation

5. Among other products, naphtha is used to produce diesel.

  • True
  • False

6. The lower the viscosity of the crude in a barrel of oil, the more of what can be produced from it?

  • Sulfur
  • Kerosene
  • Gasoline
  • Diesel

7. In the U.S., roughly what fraction of a barrel of crude oil is refined into gasoline?

  • 25%
  • 50%
  • 75%
  • 100%

8. The cracking unit in a refinery will increase the production of diesel.

  • True
  • False




1. An oil distribution pipeline carries refined fuels.

  • True
  • False

2. Where is oil in the U.S. Strategic Petroleum Reserve stored?

  • In large tanks surrounding refineries
  • In oil fields that have not yet been pumped
  • Underground in hollowed-out salt domes
  • In saline aquifers

3. Compared to other hydrocarbons, the energy content of natural gas is low per unit

  • Mass
  • Value
  • Volume
  • Weight

4. Natural gas is transferred from transmission pipelines to distribution pipelines at the…

  • City gate
  • Entrance to buildings
  • Wellhead
  • Natural gas processing plant

5. A sour smelling odorant is added to natural gas before it is put into distribution gas lines to reduce gas use.

  • True
  • False

6. “Stranded” natural gas is gas that…

  • Is associated with oil
  • Explodes
  • Cannot be moved to market

7. What is a LNG “train”?


  • A chain of natural gas pipelines
  • A train that carries compressed gas
  • An LNG tanker
  • A plant that liquifies natural gas

8. Before it can be used, imported LNG must first be…


  • Dewatered
  • Regassified
  • Cleaned of sulphur
  • Liquified


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