Inventor
HARRELL JOHN W
37 patents
⚠️ This page may combine multiple inventors who share the name “HARRELL JOHN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES INC
23 patentsUS7040390B2May 9, 2006
Wellbores utilizing fiber optic-based sensors and operating devices
BAKER HUGHES INC112 citations99
US6281489B1Aug 28, 2001
Monitoring of downhole parameters and tools utilizing fiber optics
BAKER HUGHES INC383 citations99
US6209640B1Apr 3, 2001
Method of obtaining improved geophysical information about earth formations
BAKER HUGHES INC95 citations99
US6112817ASep 5, 2000
Flow control apparatus and methods
BAKER HUGHES INC331 citations99
US6041860AMar 28, 2000
Apparatus and method for performing imaging and downhole operations at a work site in wellbores
BAKER HUGHES INC308 citations99
US5995449ANov 30, 1999
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
BAKER HUGHES INC178 citations99
US5842149ANov 24, 1998
Closed loop drilling system
BAKER HUGHES INC468 citations99
US7201221B2Apr 10, 2007
Wellbores utilizing fiber optic-based sensors and operating devices
BAKER HUGHES INC79 citations98
US6450258B2Sep 17, 2002
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
BAKER HUGHES INC96 citations98
US6167965B1Jan 2, 2001
Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores
BAKER HUGHES INC440 citations98
US5679894AOct 21, 1997
Apparatus and method for drilling boreholes
BAKER HUGHES INC182 citations98
US6787758B2Sep 7, 2004
Wellbores utilizing fiber optic-based sensors and operating devices
BAKER HUGHES INC78 citations97
US6206108B1Mar 27, 2001
Drilling system with integrated bottom hole assembly
BAKER HUGHES INC485 citations97
US6176323B1Jan 23, 2001
Drilling systems with sensors for determining properties of drilling fluid downhole
BAKER HUGHES INC786 citations97
US6006844ADec 28, 1999
Method and apparatus for simultaneous coring and formation evaluation
BAKER HUGHES INC169 citations97
US5869968AFeb 9, 1999
Method and apparatus for avoiding mutual coupling between receivers in measurement while drilling
BAKER HUGHES INC198 citations97
US5667023ASep 16, 1997
Method and apparatus for drilling and completing wells
BAKER HUGHES INC147 citations97
US6763883B2Jul 20, 2004
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
BAKER HUGHES INC35 citations96
US6310829B1Oct 30, 2001
Method and apparatus for improved communication in a wellbore utilizing acoustic signals
BAKER HUGHES INC81 citations96
US6302204B1Oct 16, 2001
Method of obtaining improved geophysical information about earth formations
BAKER HUGHES INC74 citations96
US6253848B1Jul 3, 2001
Method of obtaining improved geophysical information about earth formations
BAKER HUGHES INC56 citations96
US6233524B1May 15, 2001
Closed loop drilling system
BAKER HUGHES INC379 citations96
US6088294AJul 11, 2000
Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction
BAKER HUGHES INC465 citations96
MOBIL OIL CORP
6 patentsUS4088154AMay 9, 1978
Automatically controlled desurging system
MOBIL OIL CORP76 citations95
US3932836AJan 13, 1976
DC/AC motor drive for a downhole acoustic transmitter in a logging-while-drilling system
MOBIL OIL CORP27 citations78
US4355378AOct 19, 1982
Logging system depth recorder
MOBIL OIL CORP8 citations74
US4001775AJan 4, 1977
Automatic bit synchronization method and apparatus for a logging-while-drilling receiver
MOBIL OIL CORP16 citations73
US4134799AJan 16, 1979
Method for selecting a demulsifier for breaking a water-in-oil emulsion
MOBIL OIL CORP14 citations69
US4390878AJun 28, 1983
Two receiver noise loggers
MOBIL OIL CORP5 citations63
HALLIBURTON ENERGY SERV INC
3 patentsUS6216784B1Apr 17, 2001
Subsurface electro-hydraulic power unit
HALLIBURTON ENERGY SERV INC31 citations93
US6438070B1Aug 20, 2002
Hydrophone for use in a downhole tool
HALLIBURTON ENERGY SERV INC26 citations91
US6594199B2Jul 15, 2003
Hydrophone for use in a downhole tool
HALLIBURTON ENERGY SERV INC3 citations61