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Questions and Answers
In gamma-ray logs, which elements in ordinary sedimentary rocks produce significance in gamma radiation?
In gamma-ray logs, which elements in ordinary sedimentary rocks produce significance in gamma radiation?
- Calcium, sodium, and iron
- Carbon, hydrogen, and oxygen
- Potassium, thorium, and uranium (correct)
- Magnesium, aluminum, and silicon
Which type of rock typically has a higher gamma reading in gamma-ray logs?
Which type of rock typically has a higher gamma reading in gamma-ray logs?
- Limestone
- Shale (correct)
- Sandstone
- Basalt
Which type of well log measures the natural radioactivity produced in the rock?
Which type of well log measures the natural radioactivity produced in the rock?
- Neutron logs
- Sonic logs
- Density logs
- Gamma logs (correct)
Which type of well log can be done during any phase of a well's history?
Which type of well log can be done during any phase of a well's history?
What do sandstones with a high content of feldspar and mica have in terms of gamma intensity?
What do sandstones with a high content of feldspar and mica have in terms of gamma intensity?
What do simplified neutron and gamma ray logs respond to?
What do simplified neutron and gamma ray logs respond to?
In gamma-ray logs, which type of rock typically has a higher gamma reading?
In gamma-ray logs, which type of rock typically has a higher gamma reading?
Which type of exploration can utilize well logging for geophysical studies?
Which type of exploration can utilize well logging for geophysical studies?
What elements in ordinary sedimentary rocks produce significance in gamma radiation in gamma-ray logs?
What elements in ordinary sedimentary rocks produce significance in gamma radiation in gamma-ray logs?
What is the primary factor contributing to the gamma intensity of sandstones with a high content of feldspar and mica?
What is the primary factor contributing to the gamma intensity of sandstones with a high content of feldspar and mica?
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