536 



Subsurface Geologic Methods 



Figure 263. Directional wells at Huntington Beach, California. Surface locations 

 spaced so that a single production derrick mounted on wheels can service a group 

 of wells. 



Figure 264. Crater at Conroe, Texas, and relief well. Note stub derricks between 

 crater and well erected to permit completion of relief operations if oil in crater 

 should become ignited. 



