Texas A&M PETE 225, Spring 2014 Week 2 Homework Questions- “a commercial deposit of oil or gas..

Week
2 Homework Questions

Reading

1.
What
is meant by the phrase, “a commercial deposit of oil or gas”?

a)
Any
subsurface zone that currently contains natural gas or oil.
b)
An accumulation of oil or gas of
sufficient size to profitably explore, drill, complete, and produce.
c) Any subsurface zone
that contained oil or natural gas at any point in its history.
d)
A
deposit of oil and natural gas close enough to a refinery to build a pipeline.

2.
What
geological conditions must be met for there to be a conventional commercial
deposit of oil or gas?

a)
Subsurface
formations must be highly fractured to allow oil and gas to easily flow to a
well.
b) Both natural gas and
liquid oil must be present in measurable quantities.
c)
The deposit must have a source rock, a
reservoir rock and a trap.
d)
Different
rock types must be distributed uniformly in the subsurface.

3.
How
is a source rock (shale) “trap” different from a conventional trap?

a)
The
source of oil and gas is decomposition of dinosaur bodies
b) Flow pathways for oil and gas must be created in order to
produce oil and gas
c)
Oil
and gas must be created by modern technology
d)
The
trap must be created by injecting a layer of cement on top of the reservoir

4.
What
is the source of oil & gas?

e)
Reservoir
Rocks
f)
Organic Matter
g) Inorganic Minerals
h)
Salt
Domes

5.
What
is a conventional trap?

a)
A high point in a reservoir where
petroleum is stopped and concentrated.
b) A semi-permeable rock
layer that allows gas to escape but not oil.
c) A layer of rock where
oil and natural gas is generated.
d)
A
rock in the subsurface that contains natural gas and oil.

6.
Which
of these is NOT a way subsurface deposits of oil and natural gas are located?

a)
Locating
outcrops by airplane.
b) Conducting seismic
exploration.
c) Mapping the depths of
subsurface formations using correlations and cross sections.
d)
All of the above are ways of locating
subsurface deposits of oil and natural gas.

7.
Which
of the following is NOT a major system of a rotary drilling rig?

a)
Hoisting
b)
Engine
c) Power
d) Rotating
e)
Circulating

8.
What
must be done to evaluate a well that has been drilled through a subsurface
deposit of oil and gas before the well is prepared for production?

a)
Reservoir rock and fluids are analyzed
through mud logging and wireline logging.
b) By the time drilling
is finished, enough fluid will have flowed to surface to evaluate all necessary
properties of the well.
c) Drilling mud must be
taken from the drill-site and shipped to an off-site lab for analysis.
d)
It
is impossible to evaluate the nature of reservoir fluid before the well is
produced.

9.
Which
of these processes is NOT part of completing a well?

a)
Lowering
a casing string into the hole.
b) Cementing a casing
string in place.
c)
Drilling the wellbore through the trap.
d)
Running
a narrow-diameter steel pipe called tubing into the wellbore.

10. What is a Christmas
tree?

a)
A
series of measurement tools connected to the bottom of a tubing string.
b) An integral part of
the rotating system on a drilling rig.
c) A tool used by service
companies during seismic exploration.
d)
A vertical structure of pipes,
fittings, gauges and valves used to control the flow of produced fluids.

11. Why are pumps used in
oil wells? Are they used in gas wells?

a)
Pumps are used to lift oil from wells
that do not have enough pressure for the oil to flow to the surface on its own
at desired rate. Pumps are not normally used in gas wells unless they have
liquid buildup.
b) Pumps are used to
separate gas and oil in the subsurface before it gets to production equipment.
Pumps are NOT used in gas wells.
c) Pumps are used to lift
oil from wells that do not have enough pressure for the oil to flow to the
surface on its own. Pumps are used in gas wells more often than in oil wells.
d)
Pumps
are used to separate gas and oil in the subsurface before it gets to production
equipment. Pumps are regularly used in gas wells.

12. What can be done to
increase production from wells by increasing the flow capacity of the reservoir
near the wells?

a)
Drill
more wells in the surrounding area.
b) Carry out acid or hydraulic fracturing operations.
c)
Reevaluate
decline curves to increase reserves.
d)
There
is no way to increase production from a well after it has already been
completed.

13. What is the average
recovery from an oil reservoir?

a)
25%
b)
45%
c)
50%
d)
35%

14. Which of the following
is NOT an improved or enhanced oil recovery method mentioned in the book?

a)
CO2
Flooding
b) Water Flooding
c)
Frac Jobs
d)
Steam
Flooding

15.
Which
of the following is not a basic class of hydrocarbon molecule found in crude
oil?

a)
Paraffin
or alkane
b)
Napthene
c)
Octane
d)
Aromatic

16.
Which
of the following best describes what API gravity is?

a)
The most commonly used density scale
used to compare crude oils
b)
The
most commonly used density scale used to compare natural gases
c)
The
density of produced water
d)
The
total weight of crude oil produced from a well

17.
This
common impurity in crude oils must be removed during the refining process
because, after combustion, it can form acid rain.

a)
Salt
b)
Sulfur
c)
Carbon
Dioxide
d)
Helium

18.
What
is the main difference between a sweet crude and a sour crude?

a)
The amount of sulfur content
b)
How
efficiently the oil burns
c)
How
easy it is to separate the crude during the refining process
d)
The
amount of total impurities

19.
This
standard is used to compare other crudes against

a)
Sweet
crude
b)
Sour
crude
c)
Waxy
crude
d)
Benchmark crude

20.
The
English and metric units for oil production rates are

a)
bbl/day and m3/day
b)
ft3/day
and m3/day
c)
gal/day
and L/day
d)
ft3/day
and L/day

21.
If
a gas closely resembles the properties of air (the densities are almost the
same), what kind of value would you expect to calculate for the specific
gravity?

a)
0.5
b)
0.75
c)
1
d)
1.5

22.
Which
of the following is not a contaminant commonly found in natural gas.

a)
Carbon
Dioxide
b)
Nitrogen
c)
Methane
d)
Water
vapor

23.
Which
one of these is a NON-HYDROCARBON gas found in natural gas?

a)
Inert gas
b)
Sweet
gas
c)
Sour
gas
d)
Acid
gas

24.
Which
one of these is the most desirable for use as natural gas for sale?

a)
Inert
gas
b)
Sweet gas
c)
Sour
gas
d)
Acid
gas

25.
Which
one of these has a significant amount of hydrogen sulfide?

a)
Inert
gas
b)
Sweet
gas
c)
Sour gas
d)
Acid
gas

26.
This
gas is in contact with crude oil in the subsurface.

a)
Nonassociated
natural gas
b)
Carbon
Dioxide
c)
Hydrogen
Sulfide
d)
Associated natural gas

27.
This
is the measure of natural gas dissolved in a crude oil in the subsurface

a)
Associated
natural gas
b)
Nonassociated
natural gas
c)
Solution Gas Oil Ratio (GOR scf/bbl)
d)
Solution
Oil Gas Ratio (OGR bbl/scf)

28.
What
is a condensate?

a)
The amount of liquid produced from a
gas because of the decrease of temperature during production
b)
The
amount of gas produced from a crude because of the decrease of Pressure during
production
c)
The
amount of water produced with oil or gas
d)
A
measure of how much the gas compresses, or condenses, during production

29.
What
are the English and metric units for gas production?

a)
Cubic foot and cubic meter
b)
Cubic
inch and cubic meter
c)
Cubic
foot and cubic centimeter
d)
Cubic
inch and cubic centimeter

30.
Which
one of these is not a reservoir hydrocarbon class that chemists and
petroleum engineers classify?

a)
Black
oil
b)
Methane
c)
Volatile
oil
d)
Dry
gas

The Prize
31.
Where
was the first significant oil production in the US as described in the video?

a)
Alaska
b)
Texas

c) Pennsylvania
d)
Ontario

32.
What
was the original purpose of the drilling equipment used to drill some of the
first oil wells in the US?

a) Drilling blast holes
for highway construction
b)
Drilling water wells
c) Drilling natural gas
wells
d) Drilling shale wells

33.
What
was the first major commercial use for refined petroleum?

a)
Gasoline
for internal combustion engines
b)
Axle
grease
c)
Replace
use of coal tar for pharmaceuticals and food additives
d) Kerosene for lamps

34.
Early
well drilling…

a)
…was haphazard with no knowledge of
proper reservoir management
b) …was based on
cooperation among the drilling companies for proper well placement and
production rates
c) …relied on one company
buying out all close-by oil leases and then methodically drilling wells equal
distances apart
d) …relied on drilling
mud to prevent blowouts

35.
How
did John D. Rockefeller get started in the oil industry?

a) By drilling for and
discovering oil in Pennsylvania and Texas
b) By building the first
tanker ships
c)
By buying an oil refinery
d) By building the first
oil pipeline

36.
Rockefeller
got control of oil production, transportation and refining by making illegal
deals with railroads to control transportation of crude oil.

a)
True
b) False

37.
John
D. Rockefeller combined oil production, transportation, refining and marketing
to form the first integrated oil company.

a)
True
b) False

38.
What
was the invention that threatened the first major use of refined oil?

a)
The
internal combustion engine
b)
The
steam engine
c) The electric light bulb
d)
The
electric motor

39.
What
was the major invention that guaranteed continued use of refined oil (to this
day)?

a) The internal combustion engine
b)
The
steam engine
c)
The
electric light bulb
d)
The
electric motor

40.
John
D. Rockefeller’s power was concentrated in Texas.

a) True
b)
False

41.
A
big threat to John D. Rockefeller’s control was the discovery of oil in Texas.

a) True
b)
False

42.
Ida
Tarbell wrote magazine articles proving that Rockefeller used illegal means to
control oil transportation, encouraging President Teddy Roosevelt to break up
the Standard Oil Trust.

a) True
b)
False

43.
After
the breakup of Standard Oil, John D. Rockefeller.

a) Was heartbroken and withdrew
to private life and spent money only on himself and his family
b)
Became one of the country’s great
philanthropists
c) Built ExxonMobil from
the ashes of Standard Oil
d)
Took
over Royal Dutch Shell