Texas A&M University, College Station
Fall 2011
PETE
314
501
PETER VALKO
Total Number of Evaluations Submitted: 22
Total Number of Students Enrolled in the Class: 43
Percentage of students who submitted an evaluation: 51.16
The following questions were us

Quiz 1
Blood pressure in psig: 110 mmHg
110 mmHg (14.696 psi/760 mmHg)= 2.13 psi
Since the blood pressure is also considered the atmospheric pressure the obtained
value is in psig.
Alternative solution in absolute pressure:
110 mmHg +760 mmHg=870 mmHg
870

9) (20 paints) In a. last oft: centrizga] pump the cfw_gnawing
dam an: taken:
diameter: d1= 10 cm prassam: p, = 100 mmHg vacuum
(I; = 5 cm p2 =500 mmg gag:
cam-alien di'crcnqc hmvcen the (mile! and inier. h = 65 cm
ow raxe is 0.6 mlminmc oii [specic gravi

5) (20 points) Gas-liquid mixture is owing upward in a 0.1 m diameter tubing. The entering liquid ow rate is
Qq = 0.08 m3/s , the liquid hold-up is HL= 60 % and the slip velocity is 10 m/s. What is the gas velocity?
Solution:
The liquid ow-rate divided by

5M1!) points) A glass (cup) is completely led with with We place a soiid cube made ufc'cri: material (specic gzavity
0.115) of side length 2 in. on the top so it will partly submerge. How much water will spit! out from the glass?
. :<2 2 223.12;
2.3
,2
r

8) (1 1) points) The uid in ue Utnbe is mercury (52;. 13.6)am2 the uid in bmh
tanks is water. Tank B is open to almusvhere imt tank A is cluscd. Whm i: The my:
prawn: ofthe air in tankA, it"h ? '
I, "xi
L2)
- , , wag-Wm

Mom/Ra: QWMU MM,
[/9 Old Em it I e.- 5@_
ENGR 314
Exam 3
Closed book and closed RNES. Only cheat sheet" it allomui. In case it is inspensable, makefunher assumptions and
- cfw_ridicule it. Answer with some WORDS t: addition to (my calcmated numben Do no

Date ENGR 314
, u / 7 2 o t; Midterm Exam 3 - t _
Closed book and closed notes. Only cheat sheet" is allowed. In case it is indispensable, make further assumptions and
indicate it. Answer with some WORDS, in addition to any calculated number. Do not forg

Mini Quiz 4
An electric submersible pump is used to pump oil (Specific gravity: 0.8) to the
surface of a 10,000 ft deep well. The overall efficiency of the electric pump system
(with transmission line losses, engine losses, pump losses) is 75 %. Calculate

PETE 314 Exam 3 Key
1 (10 points) At the tubing-head of a gas producing well the pressure is 500 psig. The gas then ows through a choke that
assures critical velocity. At the outlet of the choke normally the gas has 250 psig pressure and the gas ow rate i

um Date ENGR 314 Family, First
Itll"? MidtermExatn3
Closed book and closed notes. Only cheat sheet " is allowed. In case it is indispensable, make rrther assumptions and
indicate it. Answer with some WORDS, in addition to any calculated number. Do not f

Mini Quiz 9
h= 1,000 ft
q= 4,000 bbl/day= 116.7 gal/min
Oil S.G.=0.8
For 7 " impeller (efficiency 71) we have:
hdynamic= 43 ft
Number of stages=1000/43 = 23.25 24 stages
Power=24x1.8x0.8= 34.6 HP
For 8 1/16" impeller (efficiency 71) we have:
hdynamic= 55

HW08
For a deviated gas well, using the following data
g= 0.7
di= 2.259 in
= 0.0018 in
L=8,000 ft
phf = 600 psia
=10o
Thf=140 oF
Twf=185 oF
qsc= 2,200 Mscf/D
1. Determine the Fanning friction factor.
2. Using both average TZ and Cullender and Smith Method

MQ02
Key
A one standard cubic feet gas bubble is rising in oil of SG 0.85 and temperature 180 0F. At what depth will it
fill the 3 in. (I.D.) tubing?
(Assume the wellhead pressure is standard. Gas can be considered ideal. If you need it: you can assume ga

UIN Date PETE 314 Family, First
m l 0 Midterm Exam 2
Closed book and closed notes. Only cheat sheet is allowed. In case it is unavoidable, make further assumptions and
indicate it. Answer with some WORDS, in addition to any calculated number. Do not forge

Dimensional Analysis
Dimensional Analysis
Whenever an engineering problem cannot be solved by using the
equations and analytical procedures described previously, we must resort
to experimentation. The tool used to plan, design and interpret the
experiment

Heat transfer applications
Heat Transfer Mechanisms
Conduction is the transfer (of energy) from the more energetic particles of a
substance to the adjacent less energetic ones as a result of interaction
between particles.
Convection is the mode of (energy

Transport similarities,
Heat and mass transfer,
Differential momentum
balance
Some concepts
Flux
Conductive (molecular) flux (e.g. heat flux due to temp gradient)
Convective flux (e.g. heat transport due to flow of hot material)
Gradient: spatial derivati

Balances
Approaches for Analysis of Flow
In analyzing fluid motion we may take two paths:
1. Working with a finite region (=the control volume), making a
balance of flow in versus flow out and determining flow effects
such as forces, or total energy excha

Compressible flow
Single phase gas flow (downward)
2
dp
V
4 f F
g sin( )
dl
2D
from horizontal
D
pM
ZRT
dz=dl sin()
dl
Z .
kg
m s2
m
f .
V .
M in kg/mol
(for air 0.029 kg/mol)
Single phase gas flow (almost horizontal)
2
dp
dl
q sc
q
pM q
2
pM
ZRT D /

PETE 314 Transport Processes in Petroleum
Production
Fluid Mechanics: fluid statics; stress and strain, mass,
energy, momentum balances; friction losses, turbulent
flow, Reynolds Number (Moody diagram); Newtonian/NonNewtonian fluids; flow in porous media

Fluid Statics
Fluid Statics
The word statics is derived from Greek word statikos=
motionless
For a fluid at rest or moving in such a manner that there is
no relative motion between particles there are no shearing
forces present: Rigid body approximation

Quiz 2
A block of wood (SG = 0.96 ) is floating between a layer of gasoline and
water. What fraction of the wood is below the interface? (Hint: try not to
use the actual numerical value of the densities in one or other system of
units.)
Vwood woodg = Vwat

The Energy Balance for
steady, incompressible flow,
the Bernoulli Equation
(Extended) Mechanical Energy Balance
For steady flow, open system (Eq. 4.17, rearranged):
P V2
dWn. f .
dQ
gz
u
dm
dm
2
Injection
work
ke
pe
Pump,
compressor,
turbine wo