Basic Petrophysics

5. Density, Neutron and Acoustic logs are ___ logs.
7. the process of comparing and aligning well log data from multiple wells to identify and correlate geological features.
8. criteria to eliminate non-productive areas of the formation.
9. primary objective of wireline logging in hydrocarbon exploration.
12. the ability of fluid to move through tiny pores.
14. the variation in permeability between different directions.
15. portion of a reservoir that contains economically producible hydrocarbons.
17. record of the actual borehole diameter versus depth.
18. the effect between neutron-density log in gas bearing zone.
19. log that can determine between hydrocarbon zone and water zone

1. a petrophysical technique that uses neutron, density, and sonic logs to determine lithology and identify mineral mixtures.
2. graphical representation of the lithological physical property vs. depth.
3. A borehole suite of logs must be ___ prior interpretations.
4. number of steps in a logging interpretation procedure.
6. clear ____ of the deep resistivity log from the medium resistivity log in a hydrocarbon zone.
10. the reading of the Density log for a rock with a high mass per unit volume.
11. A ____ transit time in a sonic log indicates a high-velocity formation, typically associated with dense, compact, or well-cemented rock.
13. Primarily used as a basic lithology indicator (sand/shale).
16. Grain characteristics that affect rock porosity and permeability include size, shape, sorting, and packing.