Inventor
HANNEGAN DON M
US36 patents
⚠️ This page may combine multiple inventors who share the name “HANNEGAN DON M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD LAMB
16 patentsUS7926593B2Apr 19, 2011
Rotating control device docking station
WEATHERFORD LAMB119 citations99
US8347982B2Jan 8, 2013
System and method for managing heave pressure from a floating rig
WEATHERFORD LAMB83 citations98
US7997345B2Aug 16, 2011
Universal marine diverter converter
WEATHERFORD LAMB62 citations98
US7836946B2Nov 23, 2010
Rotating control head radial seal protection and leak detection systems
WEATHERFORD LAMB66 citations98
US7258171B2Aug 21, 2007
Internal riser rotating control head
WEATHERFORD LAMB116 citations98
US7159669B2Jan 9, 2007
Internal riser rotating control head
WEATHERFORD LAMB169 citations98
US6913092B2Jul 5, 2005
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
WEATHERFORD LAMB131 citations98
US6470975B1Oct 29, 2002
Internal riser rotating control head
WEATHERFORD LAMB211 citations98
US7040394B2May 9, 2006
Active/passive seal rotating control head
WEATHERFORD LAMB86 citations97
US8347983B2Jan 8, 2013
Drilling with a high pressure rotating control device
WEATHERFORD LAMB35 citations95
US7448454B2Nov 11, 2008
Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling
WEATHERFORD LAMB50 citations95
US8353337B2Jan 15, 2013
Method for cooling a rotating control head
WEATHERFORD LAMB16 citations92
US9249646B2Feb 2, 2016
Managed pressure cementing
WEATHERFORD LAMB33 citations90
US8863858B2Oct 21, 2014
System and method for managing heave pressure from a floating rig
WEATHERFORD LAMB10 citations84
US8714240B2May 6, 2014
Method for cooling a rotating control device
WEATHERFORD LAMB6 citations84
US8636087B2Jan 28, 2014
Rotating control system and method for providing a differential pressure
WEATHERFORD LAMB10 citations82
WEATHERFORD TECH HOLDINGS LLC
11 patentsUS9845653B2Dec 19, 2017
Fluid supply to sealed tubulars
WEATHERFORD TECH HOLDINGS LLC14 citations92
US9784073B2Oct 10, 2017
Rotating control device docking station
WEATHERFORD TECH HOLDINGS LLC12 citations92
US10087701B2Oct 2, 2018
Low profile rotating control device
WEATHERFORD TECH HOLDINGS LLC10 citations82
US11193340B2Dec 7, 2021
Heave compensation system for assembling a drill string
WEATHERFORD TECH HOLDINGS LLC1 citations73
US10774599B2Sep 15, 2020
Heave compensation system for assembling a drill string
WEATHERFORD TECH HOLDINGS LLC1 citations73
US10267117B2Apr 23, 2019
Radial seal pressure reduction using internal pump
WEATHERFORD TECH HOLDINGS LLC3 citations73
US9822630B2Nov 21, 2017
Marine diverter system with real time kick or loss detection
WEATHERFORD TECH HOLDINGS LLC2 citations73
US9631442B2Apr 25, 2017
Heave compensation system for assembling a drill string
WEATHERFORD TECH HOLDINGS LLC4 citations73
US9416620B2Aug 16, 2016
Cement pulsation for subsea wellbore
WEATHERFORD TECH HOLDINGS LLC3 citations73
US10053943B2Aug 21, 2018
Annular sealing for use with a well
WEATHERFORD TECH HOLDINGS LLC4 citations72
US9951600B2Apr 24, 2018
Managed pressure cementing
WEATHERFORD TECH HOLDINGS LLC2 citations69