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Questions and Answers
Which of the following is NOT a component of a functional petroleum system?
Which of the following is NOT a component of a functional petroleum system?
What is the main factor responsible for the formation of coal?
What is the main factor responsible for the formation of coal?
Which type of kerogen is derived from land plants?
Which type of kerogen is derived from land plants?
What is the main factor determining the quality of a source rock?
What is the main factor determining the quality of a source rock?
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What is the main purpose of 3D seismic data in petroleum exploration?
What is the main purpose of 3D seismic data in petroleum exploration?
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What is the key phase in petroleum exploration involving the use of seismic imaging?
What is the key phase in petroleum exploration involving the use of seismic imaging?
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What is responsible for the accumulation of oil and gas in a petroleum system?
What is responsible for the accumulation of oil and gas in a petroleum system?
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What determines the quality of a source rock?
What determines the quality of a source rock?
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How are seismic images produced?
How are seismic images produced?
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What is the process responsible for the migration of oil and gas?
What is the process responsible for the migration of oil and gas?
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What is a necessary process in a petroleum system for the accumulation and retention of hydrocarbons?
What is a necessary process in a petroleum system for the accumulation and retention of hydrocarbons?
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What role do reservoir rocks play in the migration of oil and gas?
What role do reservoir rocks play in the migration of oil and gas?
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Which type of kerogen is not mentioned in the text?
Which type of kerogen is not mentioned in the text?
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What is the carbon cycle primarily involved in transferring between various components?
What is the carbon cycle primarily involved in transferring between various components?
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What is seismic migration considered to be?
What is seismic migration considered to be?
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What is amplitude extraction tuned to as a direct hydrocarbon indicator?
What is amplitude extraction tuned to as a direct hydrocarbon indicator?
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Which type of material primarily contributes to the formation of oil?
Which type of material primarily contributes to the formation of oil?
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What type of rocks can serve as reservoir rocks for oil and gas?
What type of rocks can serve as reservoir rocks for oil and gas?
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What are the essential processes for a functional petroleum system?
What are the essential processes for a functional petroleum system?
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What geological process is primarily responsible for the formation of coal?
What geological process is primarily responsible for the formation of coal?
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What is the primary reason for the migration of oil and gas through reservoir rocks?
What is the primary reason for the migration of oil and gas through reservoir rocks?
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What is the main purpose of seal rocks in a petroleum reservoir?
What is the main purpose of seal rocks in a petroleum reservoir?
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What is the phase that comes after exploration in petroleum exploration?
What is the phase that comes after exploration in petroleum exploration?
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What geological period primarily contributed to the formation of much of the world's coal?
What geological period primarily contributed to the formation of much of the world's coal?
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What is the main purpose of seismic imaging in petroleum exploration?
What is the main purpose of seismic imaging in petroleum exploration?
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What are the essential characteristics of reservoir rocks for oil and gas?
What are the essential characteristics of reservoir rocks for oil and gas?
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What is the primary process responsible for the formation of coal?
What is the primary process responsible for the formation of coal?
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What is the main factor causing the migration of oil and gas through reservoir rocks?
What is the main factor causing the migration of oil and gas through reservoir rocks?
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What are the initial recoverable reserves of the West Sole gas field in the Southern North Sea?
What are the initial recoverable reserves of the West Sole gas field in the Southern North Sea?
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What is the estimated exploration success rate in offshore Ireland?
What is the estimated exploration success rate in offshore Ireland?
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Which basin is the Corrib Field associated with?
Which basin is the Corrib Field associated with?
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What is the classification for ultra-deep water drilling?
What is the classification for ultra-deep water drilling?
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Where does the Norwegian oilfield production mainly come from?
Where does the Norwegian oilfield production mainly come from?
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Which basin is not mentioned as an Irish exploration discovery offshore Ireland?
Which basin is not mentioned as an Irish exploration discovery offshore Ireland?
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What are the selected petroleum provinces of NW Europe mentioned in the text?
What are the selected petroleum provinces of NW Europe mentioned in the text?
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What is the current status of oil exploration in Ireland?
What is the current status of oil exploration in Ireland?
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What is the estimated recoverable reserves of the Groningen Gas Field in The Netherlands?
What is the estimated recoverable reserves of the Groningen Gas Field in The Netherlands?
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What is the estimated exploration success rate in offshore Ireland?
What is the estimated exploration success rate in offshore Ireland?
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What is the depth classification for ultra-deep water drilling?
What is the depth classification for ultra-deep water drilling?
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Which rift system is mentioned as a major petroleum province in NW Europe?
Which rift system is mentioned as a major petroleum province in NW Europe?
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What is the initial recoverable reserves of the West Sole gas field in the Southern North Sea?
What is the initial recoverable reserves of the West Sole gas field in the Southern North Sea?
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What is the exploration success rate in offshore Ireland approximately?
What is the exploration success rate in offshore Ireland approximately?
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What is the classification for ultra-deep water drilling in terms of depth?
What is the classification for ultra-deep water drilling in terms of depth?
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What type of kerogen source rock are Coal Measures in the North Sea?
What type of kerogen source rock are Coal Measures in the North Sea?
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What period are Carboniferous rocks in the North Sea associated with?
What period are Carboniferous rocks in the North Sea associated with?
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What is the depositional environment represented by the Saloum Delta in West Africa?
What is the depositional environment represented by the Saloum Delta in West Africa?
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Which reservoirs were highlighted in the Oseberg and Gullfaks oilfields?
Which reservoirs were highlighted in the Oseberg and Gullfaks oilfields?
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What is the association of the 2017 Druid/Drombeg well?
What is the association of the 2017 Druid/Drombeg well?
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Are oil exploration licenses still being issued in Ireland as of July 2019?
Are oil exploration licenses still being issued in Ireland as of July 2019?
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What do the creaming curves suggest about the Central North Sea and West of Shetlands?
What do the creaming curves suggest about the Central North Sea and West of Shetlands?
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What type of depositional environment do Paleogene turbidite reservoirs represent?
What type of depositional environment do Paleogene turbidite reservoirs represent?
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What are the aims of the Programme for Government regarding oil and gas exploration?
What are the aims of the Programme for Government regarding oil and gas exploration?
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Which geological period contributed to the formation of much of the world's coal?
Which geological period contributed to the formation of much of the world's coal?
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What is the estimated exploration success rate in offshore Ireland?
What is the estimated exploration success rate in offshore Ireland?
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What is the classification for ultra-deep water drilling in terms of depth?
What is the classification for ultra-deep water drilling in terms of depth?
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What type of kerogen source rock are Coal Measures in the North Sea?
What type of kerogen source rock are Coal Measures in the North Sea?
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Which petroleum province is associated with the Jurassic Brent system?
Which petroleum province is associated with the Jurassic Brent system?
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In which basin is the Dunquin well discovered?
In which basin is the Dunquin well discovered?
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What type of reservoir is the Druid/Drombeg well associated with?
What type of reservoir is the Druid/Drombeg well associated with?
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Based on the creaming curves, which provinces are suggested to contain major undiscovered reserves?
Based on the creaming curves, which provinces are suggested to contain major undiscovered reserves?
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Study Notes
Petroleum Geology and Exploration Summary
- The carbon cycle involves the transfer of carbon between the atmosphere, the oceans, and rocks, including the surficial and subsurface cycles.
- Much of the world's coal is the product of land-plants alive in the Carboniferous period, while oil is produced from algal and planktonic material.
- Oil is primarily produced from algal and planktonic material, not land-plants.
- Reservoir rocks need to have porosity and permeability to allow fluid flow, and sandstone is a type of sedimentary rock that can serve as a reservoir rock.
- Seal rocks in a reservoir must have low permeability and high ductility to effectively prevent hydrocarbon leakage over geological time.
- A functional petroleum system requires the processes of source rock maturation, migration, and accumulation in traps.
- Seismic imaging is used in petroleum exploration to create a picture of subsurface structure by analyzing reflected energy from soundwaves sent into the subsurface.
- Coal is primarily formed from land-plants and the subsequent compaction and heating over millions of years.
- The phases in petroleum exploration are exploration, appraisal, development, and production.
- Carbon is cycled between the atmosphere, the oceans, and rocks.
- Coal is formed from the burial of land-plants and the subsequent compaction and heating over millions of years.
- Oil and gas migrate due to fluid buoyancy, causing them to rise through the reservoir rocks.
Petroleum Exploration and Reservoir Systems in NW Europe
- The creaming curves suggest that the Central North Sea and West of Shetlands are likely to contain major undiscovered reserves
- The Programme for Government aims to stop the oil exploration ban and has pledged to stop issuing licenses for gas exploration
- Coal Measures are a type 3 kerogen source rock for gas in the North Sea
- The West Sole gas field in the Southern North Sea has an initial recoverable reserves of 2.4 TCF
- Carboniferous rocks in the North Sea are associated with the Permian period
- The Saloum Delta in West Africa represents a deltaic depositional environment
- The Brent province reservoirs were highlighted in the Oseberg and Gullfaks oilfields
- The exploration success rate in offshore Ireland is approximately 1 in 10
- Ultra-deep water drilling is classified as depths greater than 1500m
- As of July 2019, oil exploration licenses are still being issued in Ireland
- The 2017 Druid/Drombeg well is associated with the Porcupine Basin
- The Paleogene turbidite reservoirs represent a deep-water fan depositional environment
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Description
Test your knowledge of petroleum geology and exploration with this quiz. Explore topics such as the carbon cycle, formation of coal and oil, reservoir rocks, seal rocks, petroleum system processes, seismic imaging, phases of petroleum exploration, and more.