Inventor
BEREN JEFFREY A
US5 patents
Patents
5 patentsUS5345179ASep 6, 1994
Logging earth formations with electromagnetic energy to determine conductivity and permittivity
SCHLUMBERGER TECHNOLOGY CORP115 citations96
US5406206AApr 11, 1995
Method of evaluating a geological formation using a logging tool including slot antenna having two nonparallel elements
SCHLUMBERGER TECHNOLOGY CORP47 citations95
US5243290ASep 7, 1993
Apparatus and method of logging using slot antenna having two nonparallel elements
SCHLUMBERGER TECHNOLOGY CORP61 citations95
US5434507AJul 18, 1995
Method and apparatus for electromagnetic logging with two dimensional antenna array
SCHLUMBERGER TECHNOLOGY CORP65 citations92
US5210495AMay 11, 1993
Electromagnetic logging method and apparatus with scanned magnetic dipole direction
SCHLUMBERGER TECHNOLOGY CORP73 citations92