Sonic ,neutron,density and Pef

Prep. by :Maganza N

The attached sequence is mostly carbonates.The drill bit is 12.25. 1. What might be appened in zone 1

2. Read the log carefull and identify the all zones

3. Compute porosity in zone 1, 6, 9, 11 . (density, neutron, sonic,cross plot). what

might be the main factor affecting these zones.

4. Plot the point in neutron density cross plot

5. Based on the final understanding of this log.what might be your recommendation to geologist or driller.