Inventor
DONG CHENGLI
US26 patents
⚠️ This page may combine multiple inventors who share the name “DONG CHENGLI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
18 patentsUS7305306B2Dec 4, 2007
System and methods of deriving fluid properties of downhole fluids and uncertainty thereof
SCHLUMBERGER TECHNOLOGY CORP52 citations96
US6956204B2Oct 18, 2005
Determining fluid properties from fluid analyzer
SCHLUMBERGER TECHNOLOGY CORP74 citations96
US7526953B2May 5, 2009
Methods and apparatus for the downhole characterization of formation fluids
SCHLUMBERGER TECHNOLOGY CORP70 citations95
US8024125B2Sep 20, 2011
Methods and apparatus to monitor contamination levels in a formation fluid
SCHLUMBERGER TECHNOLOGY CORP37 citations92
US7788972B2Sep 7, 2010
Method of downhole characterization of formation fluids, measurement controller for downhole characterization of formation fluids, and apparatus for downhole characterization of formation fluids
SCHLUMBERGER TECHNOLOGY CORP34 citations92
US7075063B2Jul 11, 2006
Determining phase transition pressure of downhole retrograde condensate
SCHLUMBERGER TECHNOLOGY CORP22 citations91
US7996154B2Aug 9, 2011
Methods and apparatus for analysis of downhole asphaltene gradients and applications thereof
SCHLUMBERGER TECHNOLOGY CORP40 citations90
US7966273B2Jun 21, 2011
Predicting formation fluid property through downhole fluid analysis using artificial neural network
SCHLUMBERGER TECHNOLOGY CORP44 citations90
US7002142B2Feb 21, 2006
Determining dew precipitation and onset pressure in oilfield retrograde condensate
SCHLUMBERGER TECHNOLOGY CORP27 citations90
US7458252B2Dec 2, 2008
Fluid analysis method and apparatus
SCHLUMBERGER TECHNOLOGY CORP43 citations89
US7711488B2May 4, 2010
Methods and apparatus to monitor contamination levels in a formation fluid
SCHLUMBERGER TECHNOLOGY CORP13 citations84
US7644611B2Jan 12, 2010
Downhole fluid analysis for production logging
SCHLUMBERGER TECHNOLOGY CORP11 citations84
US7586087B2Sep 8, 2009
Methods and apparatus to characterize stock-tank oil during fluid composition analysis
SCHLUMBERGER TECHNOLOGY CORP10 citations84
US6992768B2Jan 31, 2006
Optical fluid analysis signal refinement
SCHLUMBERGER TECHNOLOGY CORP12 citations84
US7158887B2Jan 2, 2007
Fluids chain-of-custody
SCHLUMBERGER TECHNOLOGY CORP16 citations81
US8039791B2Oct 18, 2011
Downhole fluid spectroscopy
SCHLUMBERGER TECHNOLOGY CORP7 citations79
US9416647B2Aug 16, 2016
Methods and apparatus for characterization of hydrocarbon reservoirs
SCHLUMBERGER TECHNOLOGY CORP7 citations71
US7458258B2Dec 2, 2008
Methods and apparatus for oil composition determination
SCHLUMBERGER TECHNOLOGY CORP4 citations62