Inventor
HEGEMAN PETER S
US32 patents
⚠️ This page may combine multiple inventors who share the name “HEGEMAN PETER S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
18 patentsUS6956204B2Oct 18, 2005
Determining fluid properties from fluid analyzer
SCHLUMBERGER TECHNOLOGY CORP74 citations96
US7913556B2Mar 29, 2011
Methods and apparatus to determine the compressibility of a fluid
SCHLUMBERGER TECHNOLOGY CORP29 citations93
US8024125B2Sep 20, 2011
Methods and apparatus to monitor contamination levels in a formation fluid
SCHLUMBERGER TECHNOLOGY CORP37 citations92
US7886825B2Feb 15, 2011
Formation fluid sampling tools and methods utilizing chemical heating
SCHLUMBERGER TECHNOLOGY CORP22 citations92
US7878243B2Feb 1, 2011
Method and apparatus for sampling high viscosity formation fluids
SCHLUMBERGER TECHNOLOGY CORP19 citations92
US7845219B2Dec 7, 2010
Method and apparatus for sampling formation fluids
SCHLUMBERGER TECHNOLOGY CORP15 citations92
US7748265B2Jul 6, 2010
Obtaining and evaluating downhole samples with a coring tool
SCHLUMBERGER TECHNOLOGY CORP30 citations92
US7717172B2May 18, 2010
Methods and apparatus to sample heavy oil from a subteranean formation
SCHLUMBERGER TECHNOLOGY CORP17 citations92
US7703317B2Apr 27, 2010
Method and apparatus for sampling formation fluids
SCHLUMBERGER TECHNOLOGY CORP27 citations92
US7677307B2Mar 16, 2010
Apparatus and methods to remove impurities at a sensor in a downhole tool
SCHLUMBERGER TECHNOLOGY CORP31 citations92
US7614294B2Nov 10, 2009
Systems and methods for downhole fluid compatibility
SCHLUMBERGER TECHNOLOGY CORP24 citations92
US6581685B2Jun 24, 2003
Method for determining formation characteristics in a perforated wellbore
SCHLUMBERGER TECHNOLOGY CORP43 citations90
US7711488B2May 4, 2010
Methods and apparatus to monitor contamination levels in a formation fluid
SCHLUMBERGER TECHNOLOGY CORP13 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
US9650891B2May 16, 2017
Obtaining and evaluating downhole samples with a coring tool
SCHLUMBERGER TECHNOLOGY CORP10 citations83
US7158887B2Jan 2, 2007
Fluids chain-of-custody
SCHLUMBERGER TECHNOLOGY CORP16 citations81
US9243493B2Jan 26, 2016
Fluid density from downhole optical measurements
SCHLUMBERGER TECHNOLOGY CORP4 citations73
HSU KAI
4 patentsUS8434356B2May 7, 2013
Fluid density from downhole optical measurements
HSU KAI31 citations92
US8335650B2Dec 18, 2012
Methods and apparatus to determine phase-change pressures
HSU KAI11 citations84
US8434357B2May 7, 2013
Clean fluid sample for downhole measurements
HSU KAI9 citations82
US9275009B2Mar 1, 2016
Calibration and consistency check of variable volume systems
HSU KAI1 citations47
HEGEMAN PETER S
2 patentsUS8622128B2Jan 7, 2014
In-situ evaluation of reservoir sanding and fines migration and related completion, lift and surface facilities design
HEGEMAN PETER S50 citations92
US10370965B2Aug 6, 2019
Method for determining a permeability or mobility of a radial flow response of a reservoir
HEGEMAN PETER S1 citations58