JNTU
JNTU B.Tech III PETROLEUM EXPLORATION METHODS Previous Question Paper (November/December - 2018 - R15)
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. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
Define clastic and carbonate rocks.
Answer
Clastic rocks are sedimentary rocks composed of fragments (clasts) of pre-existing minerals and rock particles, such as sandstone or shale. Carbonate rocks are sedimentary rocks composed primarily of carbonate minerals, such as calcite or dolomite, typically formed by chemical precipitation or biological activity, like limestone.
What is the Taxon-range Zone (TRZ)?
Answer
A Taxon-range Zone (TRZ) is a biozone defined by the total stratigraphic range of a single specific taxon, spanning from its first appearance datum (FAD) to its last appearance datum (LAD) in the rock record. It is used in biostratigraphy to correlate geological strata based on the presence of a particular fossil species.
What is the magnetic moment?
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Define magnetic susceptibility with its units.
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Define drift.
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Define Newton gravitational law with units.
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What is delay time in seismic survey?
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List out seismic surveys.
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What is NMO correction?
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What is 3D survey?
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Part B
Write a detailed note on hydrocarbon exploration methods.
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What is sedimentation? What are the sediment logical approaches involved in oil and gas exploration?
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What is magnetic anomaly? Explain about the indirect interpretation of magnetic anomaly.
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Proton magneto meter.
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Optically pumped magneto meter.
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Describe free air and bouguer anomalies of gravity methods.
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Explain about various measuring instruments of gravity.
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Describe about seismic refraction surveys.
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What are the advantages and disadvantages of refraction and reflection methods?
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What is 4D survey? Explain 4D seismic reflections survey.
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Write a short note on the following:
CDP and CMP
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Deconvolution and auto correction.
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