Inventor
WIGNALL ALBERT H
US5 patents
Patents
5 patentsUS5036945AAug 6, 1991
Sonic well tool transmitter receiver array including an attenuation and delay apparatus
SCHLUMBERGER TECHNOLOGY CORP95 citations94
US4872526AOct 10, 1989
Sonic well logging tool longitudinal wave attenuator
SCHLUMBERGER TECHNOLOGY CORP94 citations94
US5043952AAug 27, 1991
Monopole transmitter for a sonic well tool
SCHLUMBERGER TECHNOLOGY CORP56 citations93
US5970787AOct 26, 1999
Downhole gravity tool
SCHLUMBERGER TECHNOLOGY CORP49 citations90
US4862991ASep 5, 1989
Sonic well logging tool transmitter
SCHLUMBERGER TECHNOLOGY CORP24 citations90