324 



Economic Aspects 



Figure 247. Schematic drawing 

 of method developed by Con- 

 tinental, Union, Shell, and Su- 

 perior Oil Companies for test 

 drilling in water depths as 

 great as 1500 feet. From 

 Bauer, Crooke, and Stratton 

 (1958). Modification of the 

 method has permitted Global 

 Marine Exploration Company 

 to drill producing wells in a 

 water depth of 350 feet and a 

 total completion depth of 6250 

 feet. 



