Inventor
GRIFFIN DOUGLAS D
US14 patents
⚠️ This page may combine multiple inventors who share the name “GRIFFIN DOUGLAS D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
11 patentsUS5705927AJan 6, 1998
Pulsed nuclear magnetism tool for formation evaluation while drilling including a shortened or truncated CPMG sequence
SCHLUMBERGER TECHNOLOGY CORP145 citations99
US5055788AOct 8, 1991
Borehole measurement of NMR characteristics of earth formations
SCHLUMBERGER TECHNOLOGY CORP143 citations99
US5055787AOct 8, 1991
Borehole measurement of NMR characteristics of earth formations
SCHLUMBERGER TECHNOLOGY CORP206 citations98
US6758090B2Jul 6, 2004
Method and apparatus for the detection of bubble point pressure
SCHLUMBERGER TECHNOLOGY CORP80 citations96
US6612171B1Sep 2, 2003
Gravity measuring apparatus
SCHLUMBERGER TECHNOLOGY CORP73 citations96
US6008646ADec 28, 1999
Apparatus for protecting a magnetic resonance antenna
SCHLUMBERGER TECHNOLOGY CORP56 citations95
US6490916B1Dec 10, 2002
Method and system of fluid analysis and control in a hydrocarbon well
SCHLUMBERGER TECHNOLOGY CORP63 citations94
US5153514AOct 6, 1992
Antenna and wear plates for borehole logging apparatus
SCHLUMBERGER TECHNOLOGY CORP41 citations92
US6988547B2Jan 24, 2006
Method and system of fluid analysis and control in hydrocarbon well
SCHLUMBERGER TECHNOLOGY CORP29 citations90
US6578405B2Jun 17, 2003
Gas seep detection
SCHLUMBERGER TECHNOLOGY CORP21 citations88
US4739272AApr 19, 1988
Apparatus for microinductive investigation of earth formations with improved electroquasistatic shielding
SCHLUMBERGER TECHNOLOGY CORP20 citations82