Inventor
DUSSAN V ELIZABETH B
US14 patents
⚠️ This page may combine multiple inventors who share the name “DUSSAN V ELIZABETH B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
13 patentsUS6075611AJun 13, 2000
Methods and apparatus utilizing a derivative of a fluorescene signal for measuring the characteristics of a multiphase fluid flow in a hydrocarbon well
SCHLUMBERGER TECHNOLOGY CORP103 citations96
US5265015ANov 23, 1993
Determining horizontal and/or vertical permeability of an earth formation
SCHLUMBERGER TECHNOLOGY CORP72 citations96
US5335542AAug 9, 1994
Integrated permeability measurement and resistivity imaging tool
SCHLUMBERGER TECHNOLOGY CORP185 citations95
US5279153AJan 18, 1994
Apparatus for determining horizontal and/or vertical permeability of an earth formation
SCHLUMBERGER TECHNOLOGY CORP93 citations95
US6850317B2Feb 1, 2005
Apparatus and methods for determining velocity of oil in a flow stream
SCHLUMBERGER TECHNOLOGY CORP109 citations94
US7142306B2Nov 28, 2006
Optical probes and probe systems for monitoring fluid flow in a well
SCHLUMBERGER TECHNOLOGY CORP19 citations92
US5661237AAug 26, 1997
Method and apparatus for locally measuring flow parameters of a multiphase fluid
SCHLUMBERGER TECHNOLOGY CORP64 citations92
US4890487AJan 2, 1990
Method for determining horizontal and/or vertical permeability of a subsurface earth formation
SCHLUMBERGER TECHNOLOGY CORP87 citations91
US5463549AOct 31, 1995
Method and apparatus for determining permeability of subsurface formations
SCHLUMBERGER TECHNOLOGY CORP40 citations90
US7178392B2Feb 20, 2007
Determining the pressure of formation fluid in earth formations surrounding a borehole
SCHLUMBERGER TECHNOLOGY CORP44 citations88
US7542142B2Jun 2, 2009
Optical probes and probe systems for monitoring fluid flow in a well
SCHLUMBERGER TECHNOLOGY CORP12 citations84
US8015867B2Sep 13, 2011
Elongated probe
SCHLUMBERGER TECHNOLOGY CORP14 citations78
US10550687B2Feb 4, 2020
Methods for analyzing formation tester pretest data
SCHLUMBERGER TECHNOLOGY CORP3 citations72