Inventor
HEIDLER RALF
US9 patents
Patents
9 patentsUS6237404B1May 29, 2001
Apparatus and method for determining a drilling mode to optimize formation evaluation measurements
SCHLUMBERGER TECHNOLOGY CORP156 citations98
US6326784B1Dec 4, 2001
Nuclear magnetic resonance logging with azimuthal resolution using gradient coils
SCHLUMBERGER TECHNOLOGY CORP97 citations97
US6246236B1Jun 12, 2001
Apparatus and method for obtaining a nuclear magnetic resonance measurement while drilling
SCHLUMBERGER TECHNOLOGY CORP83 citations97
US6291995B1Sep 18, 2001
Apparatus and method for generating a pulse sequence
SCHLUMBERGER TECHNOLOGY CORP55 citations95
US6808028B2Oct 26, 2004
Method and apparatus utilizing NMR measurements to gather information on a property of the earth formation surrounding a wellbore
SCHLUMBERGER TECHNOLOGY CORP31 citations91
US6184681B1Feb 6, 2001
Apparatus and method for computing a distribution of spin-spin relaxation times
SCHLUMBERGER TECHNOLOGY CORP30 citations89
US6956370B2Oct 18, 2005
Method for reducing ringing in NMR measurements by combining NMR signals having a spin echo and spurious signal component
SCHLUMBERGER TECHNOLOGY CORP16 citations83
US6714009B2Mar 30, 2004
Method for the inversion of CPMG measurements enhanced by often repeated short wait time measurements
SCHLUMBERGER TECHNOLOGY CORP18 citations83
US7603237B2Oct 13, 2009
Method for analyzing data having shared and distinct properties
SCHLUMBERGER TECHNOLOGY CORP3 citations57