PETE 1010 Final Exam Review (Fall 2020)
With Complete Solutions
The pressure gradient of a column of fresh water is approximately 0.433 psi/ft. -
ANSWER True
If our drilling fluid pressure was substantially greater than the formation
pressure, the deep induction curve would have little value to a well logging
engineer, as he/she would not be able to measure Rt. - ANSWER True
What lithology tool can be used by the engineer to view a reservoir sand, for the
purpose of perforations? - ANSWER GR (Gamma Radiation)
The lithology tool that measures the natural potential that is created, as a result
of co-mingling of drilling fluids with reservoir fluids is a _________________ tool -
ANSWER SP (Spontaneous Potential)
Drillers use ______________ tools, as a qualitative measure, to evaluate hole
condition and the success or lack of success of the drilling fluid program. -
ANSWER caliper
In addition to porosity determination, the _______________ Log is used in gas
detection, shaly sand interpretation, and complex lithology evaluation. -
ANSWER neutron
You are drilling a well, using a water-base mud ,into a Louisiana gulf coast
formation, at 18,000 feet (TVD). If the formation was over-pressured by 1,500
psi, what mud-weight would you need to equal formation pressure? - ANSWER
10.54 ppg
There are 43,560 sq. ft., in an acre. Your friend wants you to invest in a newly
discovered oil field where the reservoir extends approximately 65 acres of land.
The top of the reservoir is located at 12,000 ft. (TVD) and the bottom of the
productive zone is located at 12, 025 ft. (TVD). From the sonic log delta-t reads
90 usec/ft., and from the electric log the deep induction curve reads 0.27 ohms
in a 100% wet sandstone that has no shale or other rocks/minerals in it, and the
deep induction curve reads 3.0 ohms in the zone of interest (target zone). The
formation recovery factor is 65% and Bo is equal to 1.4. The amount of OOIP and
STB is equal to _____________/____________. - ANSWER 2,294,776 bbls / 1,065,431
bbls
, What mud weight listed below is not obtainable using a water-base mud? -
ANSWER 8.00 ppg
If you were drilling a well into a normally pressured south Louisiana formation,
and your drill bit is at the bottom of a 196 stand string of drill-pipe and drill-
collars, what mud-weight would you need to equal formation pressure? -
ANSWER 8.94 ppg
_____________ logging consists of irradiating the wall of a borehole with Gamma
Rays and studying the effect of their interaction with the rocks. - ANSWER
Density
A __________ is a tower-like load-bearing structure, usually of bolted
construction. - ANSWER derrick
_____________ are large, high-pressure reciprocating pumps used to circulate
the drilling fluid on a drilling rig. - ANSWER mud pumps
_____________ a drilling rig system in which the source of power is one or more
internal combustion engine and in which the power is distributed to rig
components through mechanical devices (such as chains, sprockets, clutches,
and shafts). - ANSWER mechanical drive
___________ is a drilling rig system on which the energy from the power source,
usually several diesel engines, is changed to electricity by generators mounted
on the engines. The electrical power is then distributed through electrical
conductors to electric motors. The motors power various rig components. -
ANSWER electrical drive
____________ is the column, or string, of drill pipe with attached tool joints that
transmits fluid and rotational power from the kelly to the drill collars and the bit.
Often especially in the oil patch, the term is loosely applied to include both drill
pipe and drill collars. - ANSWER drill string
The ______________ is the hoisting mechanism on a drilling rig. - ANSWER
drawworks
_____________ is a wire rope used to support the drilling tools. (also called a
rotary line) - ANSWER drilling line
The ___________ hangs from the drilling hook on the bottom of the traveling block
by means of a large bail, or handle. The outside of it does not rotate, but the
inside does. It supports the drill string and is a conduit for drilling fluid, allowing
everything below it to rotate. - ANSWER swivel
With Complete Solutions
The pressure gradient of a column of fresh water is approximately 0.433 psi/ft. -
ANSWER True
If our drilling fluid pressure was substantially greater than the formation
pressure, the deep induction curve would have little value to a well logging
engineer, as he/she would not be able to measure Rt. - ANSWER True
What lithology tool can be used by the engineer to view a reservoir sand, for the
purpose of perforations? - ANSWER GR (Gamma Radiation)
The lithology tool that measures the natural potential that is created, as a result
of co-mingling of drilling fluids with reservoir fluids is a _________________ tool -
ANSWER SP (Spontaneous Potential)
Drillers use ______________ tools, as a qualitative measure, to evaluate hole
condition and the success or lack of success of the drilling fluid program. -
ANSWER caliper
In addition to porosity determination, the _______________ Log is used in gas
detection, shaly sand interpretation, and complex lithology evaluation. -
ANSWER neutron
You are drilling a well, using a water-base mud ,into a Louisiana gulf coast
formation, at 18,000 feet (TVD). If the formation was over-pressured by 1,500
psi, what mud-weight would you need to equal formation pressure? - ANSWER
10.54 ppg
There are 43,560 sq. ft., in an acre. Your friend wants you to invest in a newly
discovered oil field where the reservoir extends approximately 65 acres of land.
The top of the reservoir is located at 12,000 ft. (TVD) and the bottom of the
productive zone is located at 12, 025 ft. (TVD). From the sonic log delta-t reads
90 usec/ft., and from the electric log the deep induction curve reads 0.27 ohms
in a 100% wet sandstone that has no shale or other rocks/minerals in it, and the
deep induction curve reads 3.0 ohms in the zone of interest (target zone). The
formation recovery factor is 65% and Bo is equal to 1.4. The amount of OOIP and
STB is equal to _____________/____________. - ANSWER 2,294,776 bbls / 1,065,431
bbls
, What mud weight listed below is not obtainable using a water-base mud? -
ANSWER 8.00 ppg
If you were drilling a well into a normally pressured south Louisiana formation,
and your drill bit is at the bottom of a 196 stand string of drill-pipe and drill-
collars, what mud-weight would you need to equal formation pressure? -
ANSWER 8.94 ppg
_____________ logging consists of irradiating the wall of a borehole with Gamma
Rays and studying the effect of their interaction with the rocks. - ANSWER
Density
A __________ is a tower-like load-bearing structure, usually of bolted
construction. - ANSWER derrick
_____________ are large, high-pressure reciprocating pumps used to circulate
the drilling fluid on a drilling rig. - ANSWER mud pumps
_____________ a drilling rig system in which the source of power is one or more
internal combustion engine and in which the power is distributed to rig
components through mechanical devices (such as chains, sprockets, clutches,
and shafts). - ANSWER mechanical drive
___________ is a drilling rig system on which the energy from the power source,
usually several diesel engines, is changed to electricity by generators mounted
on the engines. The electrical power is then distributed through electrical
conductors to electric motors. The motors power various rig components. -
ANSWER electrical drive
____________ is the column, or string, of drill pipe with attached tool joints that
transmits fluid and rotational power from the kelly to the drill collars and the bit.
Often especially in the oil patch, the term is loosely applied to include both drill
pipe and drill collars. - ANSWER drill string
The ______________ is the hoisting mechanism on a drilling rig. - ANSWER
drawworks
_____________ is a wire rope used to support the drilling tools. (also called a
rotary line) - ANSWER drilling line
The ___________ hangs from the drilling hook on the bottom of the traveling block
by means of a large bail, or handle. The outside of it does not rotate, but the
inside does. It supports the drill string and is a conduit for drilling fluid, allowing
everything below it to rotate. - ANSWER swivel
