682 



Subsurface Geologic Methods 



LOWER 

 tZPAY ZONEZd 



a) ACID 



-ZONE- 



TREATING LOWER PAY 

 IN 2 ZONE COMPLETION 



TREATING WELL WITH 

 LEAKING CASING 



Figure 367. Application of electric pilot. 



10 20 30 



MINUTES PER nX)T 

 DRll-LlNG RATE 



2 



QJRM CAPACITY BY 

 ELECTRIC PILOT 



10 20 30 



MINUTES PER FOOT 



DRILLING RATE 



40 I 2 



CPM CAPACITY BY 

 ELECTRIC PILOT 



10 20 30 



_MINUTES PER FOOT 

 DRILLING RATE 



2 4 



1 I I 

 _GPM. CAfVkCITY BY 



ELECTRIC PILOT 



10 20 30 



I I 



MINUTES PER FOOT 

 DRILLING RATE 



2 4 6 



GPM. CAPACITY BY_ 



ELECTRIC PILOT 



Figure 368. Record of a pilot survey and drilling time. 



