Inventor
EVANS MARTIN TOWNLEY
GB6 patents
Patents
6 patentsUS6600321B2Jul 29, 2003
Apparatus and method for wellbore resistivity determination and imaging using capacitive coupling
BAKER HUGHES INC161 citations97
US7250768B2Jul 31, 2007
Apparatus and method for resistivity measurements during rotational drilling
BAKER HUGHES INC62 citations96
US6850068B2Feb 1, 2005
Formation resistivity measurement sensor contained onboard a drill bit (resistivity in bit)
BAKER HUGHES INC107 citations94
US6714014B2Mar 30, 2004
Apparatus and method for wellbore resistivity imaging using capacitive coupling
BAKER HUGHES INC115 citations94
US6348796B2Feb 19, 2002
Image focusing method and apparatus for wellbore resistivity imaging
BAKER HUGHES INC57 citations92
US7576543B2Aug 18, 2009
Apparatus and method for resistivity measurements during rotational drilling
BAKER HUGHES INC16 citations91