Porosity Flashcards
1
Q
What is porosity?
A
Porosity is the pore volume per unit volume of the formation.
2
Q
What is the maximum porosity and the corresponding type of packing?
A
Max porosity = 0.4764
Cubic packing
3
Q
What is the most dense packing and the associated porosity?
A
Hexagonal packing; porosity = 0.2595
4
Q
What is the definition of total porosity and how is it determined?
A
Total porosity = sand porosity + CBW
Determined from density log and dry core samples
5
Q
What is the definition of effective porosity and how is it determined?
A
Effective porosity = sand porosity
Determined from core samples (humidity controlled drying) and logs
