630 



Subsurface Geologic Methods 



that the dip through the section was 31° S. 73° E. A second, well 1, was 

 found productive in the Frio topped at 5,925 feet. According to the dip- 

 meter data, well 1 should have been 288 feet higher than well 2, whereas 

 it was found to be 298 feet higher. 



A similar problem may arise in the steeply dipping beds around 

 piercement-type salt dome. One well may find all sands water-bearing, 

 but laterally a short distance away they may be structurally higher and 

 some of them oil-bearing. The original dry hole may be sidetracked 

 and production obtained if the direction and magnitude of the dip are 

 known. 



4400 



4! ?Q0 . 



SOOO 



5200 



5500 



S.P Dipmeter 



LEGEND 

 F - Foir 



S - Satitfoctory 

 U - Uniotitfoctory 



Resistivity Dipmeter 



Figure 329. Composite electric logs illustrating level selection for dipmeter surveys. 



