Borehole Or Drilling (e.g., Drill Loading Factor, Drilling Rate, Rate Of Fluid Flow) Patents (Class 73/152.01)
- During drilling (Class 73/152.03)
- Density, porosity, or permeability (Class 73/152.05)
- Oil, gas, or water saturation (Class 73/152.08)
- By a core sample analysis (Class 73/152.11)
- Thermal (Class 73/152.12)
- With radioactivity measuring (Class 73/152.14)
- With vibration measuring (Class 73/152.16)
- With detail of a borehole wall engaging means (Class 73/152.17)