Natural Gas Engineering B.E Question Paper : unipune.ac.in

Name of the University : Savitribai Phule Pune University
Department : Petroleum Engineering
Degree : B.E
Subject Code/Name : Natural Gas Engineering
Sem : I
Website : unipune.ac.in
Document Type : Question Paper

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Pune Natural Gas Engineering Model Paper

B.E. (Petroleum Engineering) :
(2003 Pattern) (Sem. – I)
Time : 3 Hours
Max. Marks :100

Related : Savitribai Phule Pune University Software Engineering With Uml MCM Question Paper : www.pdfquestion.in/6613.html

Instructions

1) Answers to the two sections must be written in separate answer books.
2) Answer three questions from each section.
3) Figures to the right indicate full marks.
4) Neat diagrams should be drawn wherever necessary.
5) Use of a non-programmable calculator is allowed.
6) Assume suitable data, if necessary and clearly state it.

Semester I

SECTION – I :
Q1) Define Bg, Cg, Tpc. Draw the graph of viscosity, Cg and z factor versus pressure and explain. [16]
Q2) What is an inflow performance curve for a gas reservoir? What is an outflow performance curve? What is a tubing intake curve? Plot all on the same graph? What is the usefulness of this graph? Explain in detail with equations. [16]
Q3) Explain any two methods to find flowing and static bottom hole pressure. [18]
Q4) Derive the gas flow meter equation. [16]

SECTION – II :
Q5) Draw a process flow diagram showing the removal of carbon dioxide and explain in detail. [16]
Q6) Derive an expression to find equivalent diameter for parallel pipes. [16]
Q7) a) Draw a diagram of a centrifugal compressor and name its parts. [10]
b) Compressor compression cycle. [6]

Q8) Write short notes on : [18]
a) Pipeline insulating.
b) Compressor design.
c) Isochronal well testing.

Semester II

UNIVERSITY OF PUNE :
B. E. (Petroleum Engineering) Examination – 2013
Natural Gas Engineering :
(2003 Course)
[Time: 3 Hours] [Max. Marks: 100]
Instructions:
1 Answers to the two sections should be written in separate answer-books.
2 Figures to the right indicate full marks.
3 Neat diagrams must be drawn wherever necessary.
4 Use a non programmable calculator
5 Assume suitable data, if necessary and clearly state it.

SECTION -I :
Q.1 A Draw the graph of viscosity, Bg, Cg and Z factors versus pressure and explain? 6
B Explain the chart you use to correct gas properties for N2 impurities? 5
C Calculate the reserves in a gas field of 2000 acres, with 20ft sand thickness, 15% porosity, 15% water saturation, BHP=3000 Psi gauge, BHT=200 F. the natural gas has the following weight composition: Ci=0.85,C2=0.05,N2=0.1. 7

Q.2 A Why is gas flow in porous media different from liquid flow? 4
B Explain all the constants in the gas flow meter equation 8
C Short note on gas well testing 4
Q. 3 A For a well with a following parameter; D=5790ft, gas gravity is 0.7, Pts=2300 Psia, and average temperature of the flow string is 117 F. Gas flow rate-5MMscfd, 8
Dia=2inches Twf=160 F, Ttf=83 F Ptf=2122 psia, length of tubing 5700 ft, well is vertical. State your assumed values clearly and only do one iteration to find the flowing bottom hole pressure, static bottom hole pressure and temperature. Tpc=358 R, Ppe=672 psia, f=0.015, z=0.82
B Explain tubing pressure transverse with figure? 4
C Explain tubing pressure loss for liquid, gas and multiphase with figure?4

SECTION II :
Q. 4 A Draw the process diagram for glycol dehydration and explain the design considerations. 6
B Explain selection and working of spherical separator with a neat sketch? 6
C Explain amine sweetening process with a neat process flow diagram? 6
Q. 5 A Explain in detail two stage compressor cycle. 4
B Draw a diagram of a centrifugal compressor and name its parts. 4
C What is the HP required in compressing 1 MMSCFD from 100 psia and 80 F to 1600 psia using adiabatic equation? The gas is cooled to 80 F between stage. What is the discharge temperature of the gas? k=1.28, gas gravity=0.6, Z at 400 and 1600 psia are 0.985, 0.94 respectively. 8

Q. 6 A Write short note on pipeline efficiency? 3
B Write short note on Transmission factor? 3
C Give solutions for liquid loading problem? 3
D Write note on preventing hydrate formation? 3
E Write short note on pipeline cleaning and utility pigs? 3
F Write short note on pipeline economics 3