Which statement is NOT TRUE for neutron log

Shale has low reading neutron log

Which statement is NOT TRUE for gamma ray

Used to distinguish carbonate and sandstone

Membrane potential is

shales permeable to cations and impermeable to anions

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Principle of Six Type Logging Tools

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#SPlog#GRlog#Neutron#Density#Resistivity#Sonic

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Questions 16

Answers

1
3 requirement for existence SP current, except
A conductive borehole
Difference salinity
Air filling based mud
Different permeable - non permeable beds
2
Which statement is NOT TRUE for neutron log
Gas has very low reading neutron log
Sandstone has low reading neutron log
Oil has low reading neutron log
Shale has low reading neutron log
3
Resistivity log can be used to infer information of __________ except
Water saturation
Porosity of formation
Oil compressibility
Presence of hydrocarbon
4
In shale formation , the neutron log read higher porosity because of effect of bound water.
True
False
5
When the formation contains hydrocarbon, resistivity will be high
False
True
6
Resistivity logging is suitable for deep depth investigations.
True
False
7
Acoustic log can detect overpressure zones by showing increasing of travel times.
False
True
8
Which statement is NOT TRUE for gamma ray
Used to distinguish carbonate and sandstone
Used to distinguish shale and non shale formation
Shale emits more gamma ray
High radioactivity formation deflects to the right
9
Matrix density for sandstone is
2.65 g/cc
2.87 g/cc
2.95 g/cc
2.71 g/cc
10
If the borehole containing shale formation, gamma log will show
Low reading
High reading
11
The picture shows events of _______________ in SP current.
Mud cake potential
Shale potential
Membrane potential
Liquid Junction potential
12
Which statement is FALSE for gas identification in neutron- density log.
Crossover
Neutron porosity less than density porosity
Density porosity too low
Neutron porosity too low
13
Statement below shows advantages of acoustic log except
Detect overpressure
Identify lithology
Detect fracture
Identify water saturation
14
Which statement is FALSE if small amount of hydrogen presence in formation
Neutron slow down and absorbed slowly
Neutron travel in long distance
High reading of neutron log
Count rate high in low porosity rocks
15
Density log used to identify _____________ except
Porosity of formation
Permeability of formation
Formation fluid type
Lithology of formation
16
Membrane potential is
electrolyte flows through a permeable medium
shales permeable to cations and impermeable to anions
current flowing between solutions of different salinity
charged ion move through mud cake into permeable formation

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