JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II PETROLEUM GEOLOGY Previous Question Paper (May - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
Part A
Explain the term “Oil Window”.
Answer
The Oil Window refers to the specific temperature range, typically between 60°C and 120°C, within which liquid petroleum (oil) is generated from kerogen in source rocks. Below this range, the source rock is immature, and above it, the organic matter undergoes thermal cracking into natural gas.
List the type of source rocks.
Answer
Source rocks are primarily classified based on their organic content and depositional environment:
- Shales (Carbonaceous or Bituminous shales)
- Limestones (Organic-rich micritic limestones)
- Coals and Coaly shales
- Evaporitic sequences (associated with restricted marine environments)
List the nomenclature of Clastic Reservoir Rocks.
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State the nomenclature of Carbonate Reservoir Rocks.
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Define the term “Cap Rocks”.
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Define the term “Permeability”.
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Explain the Origin of Sedimentary basin.
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Explain the basin locations in India.
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List the classification of Petroliferous basins of India.
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State the petroleum reservoir potential of Carbonate rocks.
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Part B
Explain the process of metagenesis in the formation of source rocks.
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Discuss on Evaluation of petroleum source rock potential.
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Give any one example of source rocks.
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Why the subsurface temperature and pressure vary in space and time.
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Describe about Lime stone and its importance.
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Give the classification of reservoir rocks.
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Explain the characteristics and nature of Reservoir rocks.
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Explain the process of migration of oil from the source rock to reservoir rock.
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Describe about Unconventional reservoir rocks and its importance.
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Explain the characteristics of ‘Cap Rocks’.
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Explain the terms “Effective porosity and fracture porosity”.
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Describe the Traps associated with salt domes.
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Differentiate between structural trap and stratigraphic trap with sketch.
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Describe the types of basins and their relationship to hydrocarbon prospects.
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Describe the different methods of Geophysical prospecting used in Hydrocarbon exploration.
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