Inventor
MCKEON DONALD C
US8 patents
Patents
8 patentsUS4937446AJun 26, 1990
Carbon/oxygen well logging method and apparatus
SCHLUMBERGER TECHNOLOGY CORP83 citations96
US5408097AApr 18, 1995
Method and apparatus for correcting natural gamma ray measurements for borehole fluid effects
SCHLUMBERGER TECHNOLOGY CORP23 citations92
US5045693ASep 3, 1991
Carbon/oxygen well logging method and apparatus
SCHLUMBERGER TECHNOLOGY CORP26 citations92
US6133734AOct 17, 2000
Method and apparatus for evaluating an earth formation using nuclear magnetic resonance techiques
SCHLUMBERGER TECHNOLOGY CORP36 citations91
US5841135ANov 24, 1998
Method and apparatus for measuring formation density and the formation photo-electric factor with a multi-detector gamma-gamma tool
SCHLUMBERGER TECHNOLOGY CORP37 citations90
US5219518AJun 15, 1993
Nuclear oxygen activation method and apparatus for detecting and quantifying water flow
SCHLUMBERGER TECHNOLOGY CORP32 citations89
US6489763B1Dec 3, 2002
Magnet assembly for nuclear magnetic resonance well logging tools
SCHLUMBERGER TECHNOLOGY CORP17 citations81
US5053620AOct 1, 1991
Logging apparatus and method for determining concentrations of subsurface formation elements
SCHLUMBERGER TECHNOLOGY CORP15 citations73