Patent ID: 11946358
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Measurement (Instruments)
Classification: CPC E  G | IPC E  G

Claim 5:
6. The method of claim 1, wherein a time of arrival of a C1 ray is determined by, tC
    1
   
   =
   
    
     
      2
      
       r
       ⁢
       1
      
     
     
      V
      
       m
       ⁢
       1
      
     
    
    +
    
     
      2
      
       wcsg
       ⁢
       1
      
     
     
      V
      
       csg
       ⁢
       1
      
     
    
    +
    
     
      2
      
       r
       ⁢
       2
      
     
     
      V
      
       m
       ⁢
       2
      
     
    
    +
    
     
      
       
        r
        3
        2
       
       +
       
        y
        3
        2
       
      
      2
     
     
      V
      
       m
       ⁢
       3
      
     
    
    +
    
     
      (
      
       S
       -
       
        2
        ⁢
        
         y
         3
        
       
      
      )
     
     
      V
      
       csg
       ⁢
       2
      
     
    
   
  
  ,, wherein tC1 is the time of arrival, r1 is a first radius, y is the first ray location on an x and y plane, S is a distance between the transmitter and the receiver, Vm1 is an acoustic compressional velocity of a first material, Vm2 is an acoustic compressional velocity of a second material, Vm3 is an acoustic compressional velocity of a third material, and the C1 ray is the ray path within a first zone of interest.