Inventor
VANNUFFELEN STEPHANE
GB33 patents
⚠️ This page may combine multiple inventors who share the name “VANNUFFELEN STEPHANE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
28 patentsUS7379180B2May 27, 2008
Method and apparatus for downhole spectral analysis of fluids
SCHLUMBERGER TECHNOLOGY CORP59 citations97
US7937223B2May 3, 2011
Downhole fluid analysis
SCHLUMBERGER TECHNOLOGY CORP20 citations92
US7720323B2May 18, 2010
High-temperature downhole devices
SCHLUMBERGER TECHNOLOGY CORP48 citations92
US7609380B2Oct 27, 2009
Real-time calibration for downhole spectrometer
SCHLUMBERGER TECHNOLOGY CORP22 citations92
US7336356B2Feb 26, 2008
Method and apparatus for downhole spectral analysis of fluids
SCHLUMBERGER TECHNOLOGY CORP41 citations92
US7515774B2Apr 7, 2009
Methods and apparatus for single fiber optical telemetry
SCHLUMBERGER TECHNOLOGY CORP18 citations91
US7644611B2Jan 12, 2010
Downhole fluid analysis for production logging
SCHLUMBERGER TECHNOLOGY CORP11 citations84
US7511813B2Mar 31, 2009
Downhole spectral analysis tool
SCHLUMBERGER TECHNOLOGY CORP17 citations84
US7687770B2Mar 30, 2010
Methods and apparatus for multi dimension fluorescence spectrum measurement downhole
SCHLUMBERGER TECHNOLOGY CORP15 citations83
US7687769B2Mar 30, 2010
Methods and apparatus for multi dimension fluorescence spectrum measurement and correlations downhole
SCHLUMBERGER TECHNOLOGY CORP12 citations83
US7520160B1Apr 21, 2009
Electrochemical sensor
SCHLUMBERGER TECHNOLOGY CORP9 citations83
US7933018B2Apr 26, 2011
Spectral imaging for downhole fluid characterization
SCHLUMBERGER TECHNOLOGY CORP18 citations82
US7929812B2Apr 19, 2011
Methods and apparatus for single fiber optical telemetry
SCHLUMBERGER TECHNOLOGY CORP14 citations82
US9441479B2Sep 13, 2016
Mechanical filter for acoustic telemetry repeater
SCHLUMBERGER TECHNOLOGY CORP4 citations73
US11149544B2Oct 19, 2021
Combined telemetry and control system for subsea applications
SCHLUMBERGER TECHNOLOGY CORP3 citations72
US10900352B2Jan 26, 2021
Wireless acoustic communication apparatus and related methods
SCHLUMBERGER TECHNOLOGY CORP3 citations72
US9790786B2Oct 17, 2017
Backbone network architecture and network management scheme for downhole wireless communications system
SCHLUMBERGER TECHNOLOGY CORP3 citations72
US11603740B2Mar 14, 2023
Method for real-time interpretation of pressure transient test
SCHLUMBERGER TECHNOLOGY CORP2 citations71
US11293281B2Apr 5, 2022
Combined wireline and wireless apparatus and related methods
SCHLUMBERGER TECHNOLOGY CORP2 citations66
US12291964B2May 6, 2025
Method for real-time interpretation of pressure transient test
SCHLUMBERGER TECHNOLOGY CORP0 citations60
US7675030B2Mar 9, 2010
Logging system and method for in-situ fluids sensing through optical fiber with attenuation compensation
SCHLUMBERGER TECHNOLOGY CORP2 citations60
US8908166B2Dec 9, 2014
Methods and apparatus for downhole fluid analysis
SCHLUMBERGER TECHNOLOGY CORP3 citations59
US10711601B2Jul 14, 2020
System and method to automate data acquisition in a wireless telemetry system
SCHLUMBERGER TECHNOLOGY CORP1 citations58
US10337321B1Jul 2, 2019
System and method to automate data acquisition in a wireless telemetry system
SCHLUMBERGER TECHNOLOGY CORP1 citations58
US7832501B2Nov 16, 2010
Measurement ahead of the drilling bit by analysis of formation cuttings using ultraviolet light to detect the presence of oil or gas
SCHLUMBERGER TECHNOLOGY CORP0 citations52
US7750302B2Jul 6, 2010
Method and apparatus for detecting naphthenic acids
SCHLUMBERGER TECHNOLOGY CORP1 citations51
US10708869B2Jul 7, 2020
Heterogeneous downhole acoustic network
SCHLUMBERGER TECHNOLOGY CORP0 citations41
US9534494B2Jan 3, 2017
Optical window assemblies
SCHLUMBERGER TECHNOLOGY CORP0 citations39