JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III PETROLEUM PRODUCTION ENGINEERING AND DESIGN Previous Question Paper (May - 2019 - R15)
Part A is compulsory. Answer any one full question from each unit in Part B.
Part A
Define gas compressibility factor?
Answer
The gas compressibility factor, denoted by z, is a dimensionless correction factor that accounts for the deviation of a real gas from ideal gas behavior. It is defined as the ratio of the actual volume of a gas at a given pressure and temperature to the volume the gas would occupy if it behaved as an ideal gas.
What is GOR?
Answer
GOR stands for Gas-Oil Ratio. It is the ratio of the volume of gas produced (measured at standard conditions) to the volume of oil produced (measured at stock tank conditions) during a specific period. It is typically expressed in standard cubic feet per stock tank barrel (scf/stb).
Define specific gravity of gas?
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What is PI and IPR?
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Define viscosity of gas.
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Write the types of transportation systems used in the oil and gas industry.
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Write the types of gas lift systems.
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What is channeling?
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What do you understand by hydraulic fracturing job?
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Define acidizing.
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Unit I
What are the uses of wellhead assembly? Explain the Christmas tree with neat and clean diagram.
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The solution GOR of a crude oil is 800 scf/stb at 3000 psia and 120 F. Given the following PVT data: bubble point pressure: 2500psia; oil gravity: 35 API; Gas specific gravity: 0.77 (air=1). Estimate densities of the crude oil at 120 F, 2500 psia and 3000 psia.
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Construct IPR curve for given problem with the help of Vogel’s method. Given data: Pr = 2700 psi; Pwf = 2000 psi; q = 170 bpd. Find: qmax and q for Pwf = 1200 psi
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Unit II
What principles are used in the production forecast in the oil field?
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What procedure is carrying out for production forecast during two phase flow period?
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What are the models or methods used to determining the production decline analysis? Explain one of them.
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Unit III
Write the modes of transportations used in oil and gas industry. Explain one of them.
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Write the types of separators used in oil industry and explain one of them on the basis of efficiency.
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Briefly describe the working procedure of vertical heater treater with neat and clean diagram.
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Unit IV
Explain the working procedure of sucker rod pumping system with neat clean diagram.
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Write the advantages and disadvantage of gas lift system.
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Describe the working procedure of continuous gas lift system.
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Unit V
What are well stimulation jobs and why do we need to perform well stimulation jobs?
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Explain sandstone acidizing method. What parameters are required for selection an acidizing method.
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Briefly explain the following:
a) Hydraulic fracturing
b) Matrix Acidizing.
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