Inventor
HARRALL SIMON J
GB33 patents
⚠️ This page may combine multiple inventors who share the name “HARRALL SIMON J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD LAMB
14 patentsUS8347982B2Jan 8, 2013
System and method for managing heave pressure from a floating rig
WEATHERFORD LAMB83 citations98
US7121351B2Oct 17, 2006
Apparatus and method for completing a wellbore
WEATHERFORD LAMB51 citations96
US6834725B2Dec 28, 2004
Reinforced swelling elastomer seal element on expandable tubular
WEATHERFORD LAMB260 citations96
US8016033B2Sep 13, 2011
Continuous flow drilling systems and methods
WEATHERFORD LAMB32 citations92
US7077197B2Jul 18, 2006
Expandable tubular connection
WEATHERFORD LAMB21 citations92
US6935430B2Aug 30, 2005
Method and apparatus for expanding a welded connection
WEATHERFORD LAMB57 citations92
US8794354B2Aug 5, 2014
Extendable cutting tools for use in a wellbore
WEATHERFORD LAMB15 citations91
US8863858B2Oct 21, 2014
System and method for managing heave pressure from a floating rig
WEATHERFORD LAMB10 citations84
US7434622B2Oct 14, 2008
Compliant cone for solid liner expansion
WEATHERFORD LAMB9 citations84
US7156179B2Jan 2, 2007
Expandable tubulars
WEATHERFORD LAMB10 citations84
US7798536B2Sep 21, 2010
Reverse sliding seal for expandable tubular connections
WEATHERFORD LAMB11 citations82
US7387169B2Jun 17, 2008
Expandable tubulars
WEATHERFORD LAMB8 citations74
US6966369B2Nov 22, 2005
Expandable tubulars
WEATHERFORD LAMB6 citations63
US7591059B2Sep 22, 2009
Expansion activated anti-rotation device
WEATHERFORD LAMB3 citations54
WEATHERFORD TECH HOLDINGS LLC
9 patentsUS10132137B2Nov 20, 2018
Bidirectional downhole isolation valve
WEATHERFORD TECH HOLDINGS LLC7 citations81
US9957794B2May 1, 2018
Dart detector for wellbore tubular cementation
WEATHERFORD TECH HOLDINGS LLC2 citations68
US10253592B2Apr 9, 2019
Anti-extrusion barrier for packing element
WEATHERFORD TECH HOLDINGS LLC1 citations62
US10094197B2Oct 9, 2018
Reverse cementation of liner string for formation stimulation
WEATHERFORD TECH HOLDINGS LLC2 citations62
US10053961B2Aug 21, 2018
Downhole debris retriever
WEATHERFORD TECH HOLDINGS LLC1 citations52
US10753179B2Aug 25, 2020
Wellbore assembly with an accumulator system for actuating a setting tool
WEATHERFORD TECH HOLDINGS LLC0 citations51
US10030481B2Jul 24, 2018
Method and apparatus for a wellbore assembly
WEATHERFORD TECH HOLDINGS LLC0 citations51
US9518436B2Dec 13, 2016
Positive retraction latch locking dog for a rotating control device
WEATHERFORD TECH HOLDINGS LLC0 citations51
US10000988B2Jun 19, 2018
Seal assemblies in subsea rotating control devices
WEATHERFORD TECH HOLDINGS LLC0 citations37