G-8 Geolograph Chart 



Figure 224. Portion of a 12-hour "Geolo- 

 graph" chart, Scurry County, Texas, show 

 ing drilling change at top of reef-limestone 

 producing horizon at 6,708 feet with break 

 in the pay at 6,741 feet. Pipe was added 

 to string at 6,714 feet and at 6,745 feet. 



