20 Questions
Which method is used to measure spatial variations in the strength of the gravitational field of the Earth?
Density
Which method is used to measure spatial variations in the strength of the geomagnetic field?
Magnetic
Which method is used to measure response to electric conductivity/resistivity and electromagnetic radiation?
Electromagnetic
Which method is used to measure travel times of reflected/refracted seismic waves?
Seismic
Seismic methods are used to measure seismic velocity of rock layers in order to determine the lithology and geometry of the layers. Which type of wave is related to the density of the rock?
P-waves
Which type of seismic survey is the easiest and least expensive?
2-D seismic survey
What is the purpose of formation evaluation in petroleum exploration and development?
To evaluate hydrocarbon reservoirs and predict oil recovery
What is the advantage of wireline retrievable coring over conventional coring?
Time-saving
Which type of well testing involves measuring the pressure during a period of flow at a constant producing rate?
Drawdown Test
What does a buildup test measure?
Pressure buildup in wellbore with time after shutting in the well
What information can be obtained from a drill stem test?
All of the above
What does a straddle test with a bottom packer measure?
Pressure below the bottom packer
Which of the following logs is primarily used to define permeable beds when the SP log cannot be employed?
Gamma Ray Log
Which log provides information about the lithology and shale content of a formation?
Gamma Ray Log
Which log is primarily used to estimate the porosity of a formation?
Neutron Porosity Log
Which flow regime is characterized by pressure remaining constant at every location in the reservoir?
Steady state flow
Which of the following is NOT a property that can be determined through routine core analysis?
Capillary pressure test
What is the purpose of well logging?
To collect data about wellbores and subsurface formations
Which type of logging is used to detect permeable beds and estimate their thickness?
Resistivity Log
What is the purpose of mud logging?
To examine the rock cuttings brought to the surface by drilling mud
Test your knowledge on the proper steps for handling and preserving core samples. Learn about marking, extracting, wrapping, and transporting core samples for laboratory testing.
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