| 摘要 |
In an acoustic logging system for providing information regarding selected parameters of the wall of a borehole in the earth, and of the rock formation which is adjacent the borehole, in which a first transmit/receive transducer system (T/RTS) 46 mounted on a rotating assembly 34 probes the wall of the borehole in a circular scanning pattern as a function of depth, the improvement which includes at least a second T/RTS 48 mounted on the rotating assembly in known geometrical relation to the first T/RTS and means to utilize in combination the electrical scan signals from the at least two scanning T/RTS. <IMAGE> |
