Podcast
Questions and Answers
What is the primary purpose of a gamma ray log?
What is the primary purpose of a gamma ray log?
- Quality control of log readings (correct)
- Identify reservoir zones
- Identify mud cake (permeable zone)
- Compute volume of borehole
In the context of the text, what does a hole being 'on gauge' mean?
In the context of the text, what does a hole being 'on gauge' mean?
- Circular hole shape (correct)
- Round hole shape
- Washed out hole shape
- Oval hole shape
Why can the gamma ray log be badly affected in intervals that suffer from caving?
Why can the gamma ray log be badly affected in intervals that suffer from caving?
- Higher gamma rays emitted by caving
- Decreased drilling mud between formation and detector
- Loss of signal due to caving
- Increased drilling mud between formation and detector (correct)
What does a caliper log show when the hole size is lower than the bit size?
What does a caliper log show when the hole size is lower than the bit size?
Why is a four arm caliper log preferred over a single caliper for interpreting borehole shape?
Why is a four arm caliper log preferred over a single caliper for interpreting borehole shape?
What is the significance of the hole size being lower than the bit size in a caliper log?
What is the significance of the hole size being lower than the bit size in a caliper log?
What is the role of the caliper arm in a caliper log?
What is the role of the caliper arm in a caliper log?
What is the implication when the actual hole size is higher than the bit size in a caliper log?
What is the implication when the actual hole size is higher than the bit size in a caliper log?
What is the significance of a permeable zone in petroleum engineering?
What is the significance of a permeable zone in petroleum engineering?
What is the role of the caliper log in quality control of other logs?
What is the role of the caliper log in quality control of other logs?