Assignee
WELLDYNAMICS INC
US24 patents
Top patents by PatentIndex Score
US6575237B2Jun 10, 2003
Hydraulic well control system
WELLDYNAMICS INC113 citations97
US6659184B1Dec 9, 2003
Multi-line back pressure control system
WELLDYNAMICS INC54 citations96
US6585051B2Jul 1, 2003
Hydraulically operated fluid metering apparatus for use in a subterranean well, and associated methods
WELLDYNAMICS INC93 citations96
US7210856B2May 1, 2007
Distributed temperature sensing in deep water subsea tree completions
WELLDYNAMICS INC18 citations93
US7242103B2Jul 10, 2007
Downhole electrical power generator
WELLDYNAMICS INC49 citations92
US7218820B2May 15, 2007
Method and system for providing a hydrogen diffusion barrier for fiber optic cables used in hostile environments
WELLDYNAMICS INC22 citations92
US7145471B2Dec 5, 2006
Sequential hydraulic control system for use in a subterranean well
WELLDYNAMICS INC31 citations92
US7013980B2Mar 21, 2006
Hydraulically actuated control system for use in a subterranean well
WELLDYNAMICS INC39 citations92
US7861788B2Jan 4, 2011
Casing valves system for selective well stimulation and control
WELLDYNAMICS INC40 citations91
US7779912B2Aug 24, 2010
Well tool having magnetically coupled position sensor
WELLDYNAMICS INC19 citations91
US7357021B2Apr 15, 2008
Methods of monitoring downhole conditions
WELLDYNAMICS INC63 citations91
US6470970B1Oct 29, 2002
Multiplier digital-hydraulic well control system and method
WELLDYNAMICS INC82 citations91
US7950461B2May 31, 2011
Screened valve system for selective well stimulation and control
WELLDYNAMICS INC25 citations89
US7503385B2Mar 17, 2009
Single line control module for well tool actuation
WELLDYNAMICS INC25 citations89
US7322421B2Jan 29, 2008
Fiber optic deployment apparatus and method
WELLDYNAMICS INC26 citations86
US6995683B2Feb 7, 2006
System and method for transmitting downhole data to the surface
WELLDYNAMICS INC34 citations86
US7240737B2Jul 10, 2007
Direct proportional surface control system for downhole choke
WELLDYNAMICS INC11 citations84
US7673683B2Mar 9, 2010
Well tool having magnetically coupled position sensor
WELLDYNAMICS INC14 citations83
US7484566B2Feb 3, 2009
Pulse width modulated downhole flow control
WELLDYNAMICS INC12 citations83
US7191828B2Mar 20, 2007
Hydraulically set concentric packer with multiple umbilical bypass through the piston
WELLDYNAMICS INC9 citations73
US9464507B2Oct 11, 2016
Casing valves system for selective well stimulation and control
WELLDYNAMICS INC1 citations63
US7730956B2Jun 8, 2010
Downhole pressure balanced electrical connections
WELLDYNAMICS INC4 citations61
US7836956B2Nov 23, 2010
Positional control of downhole actuators
WELLDYNAMICS INC5 citations59
US7785080B2Aug 31, 2010
Downhole ram pump
WELLDYNAMICS INC0 citations52