| |
 |
|
Class Information
Number: 166/332.1
Name: Wells > Valves, closures or changeable restrictors > Longitudinally movable operator
Description: Valve, closure or changeable restrictor comprising an axially shiftable element operated from the surface of the well to control movement of a flow regulating device.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617874 |
Flexible matrix composite actuator for use in subsurface wellbores |
Nov. 17, 2009 |
| 7604056 |
Downhole valve and method of making |
Oct. 20, 2009 |
| 7575058 |
Incremental annular choke |
Aug. 18, 2009 |
| 7575062 |
Methods and devices for treating multiple-interval well bores |
Aug. 18, 2009 |
| 7562712 |
Setting tool for hydraulically actuated devices |
Jul. 21, 2009 |
| 7556102 |
High differential shifting tool |
Jul. 7, 2009 |
| 7552774 |
Control line hydrostatic minimally sensitive control system |
Jun. 30, 2009 |
| 7543651 |
Non-elastomer cement through tubing retrievable safety valve |
Jun. 9, 2009 |
| 7497265 |
Reclosable mechanical annular flow valve |
Mar. 3, 2009 |
| 7487829 |
Wellbore valve having linear magnetically geared valve actuator |
Feb. 10, 2009 |
| 7467664 |
Production actuated mud flow back valve |
Dec. 23, 2008 |
| 7448591 |
Step ratchet mechanism |
Nov. 11, 2008 |
| 7422065 |
System for controlling zones of fluid in and out of a wellbore |
Sep. 9, 2008 |
| 7373972 |
Piloting actuator valve for subterranean flow control |
May. 20, 2008 |
| RE40308 |
Multi-purpose injection and production well system |
May. 13, 2008 |
| 7363981 |
Seal stack for sliding sleeve |
Apr. 29, 2008 |
| 7347268 |
One trip flow tube exercising tool |
Mar. 25, 2008 |
| 7347269 |
Flow tube exercising tool |
Mar. 25, 2008 |
| 7331392 |
Pressure range delimited valve |
Feb. 19, 2008 |
| 7303020 |
Interventionless oil tool actuator with floating piston and method of use |
Dec. 4, 2007 |
| 7252153 |
Bi-directional fluid loss device and method |
Aug. 7, 2007 |
| 7228914 |
Interventionless reservoir control systems |
Jun. 12, 2007 |
| 7152688 |
Positioning tool with valved fluid diversion path and method |
Dec. 26, 2006 |
| 7150326 |
Bi-directional ball seat system and method |
Dec. 19, 2006 |
| 7114697 |
Fast valve actuator and tool provided with same |
Oct. 3, 2006 |
| 7059426 |
Acoustic flow pulsing apparatus and method for drill string |
Jun. 13, 2006 |
| 7059418 |
Pressurized seal arrangement |
Jun. 13, 2006 |
| 7055598 |
Fluid flow control device and method for use of same |
Jun. 6, 2006 |
| 7051813 |
Pass through valve and stab tool |
May. 30, 2006 |
| 7021389 |
Bi-directional ball seat system and method |
Apr. 4, 2006 |
| 6978842 |
Volume compensated shifting tool |
Dec. 27, 2005 |
| 6953084 |
Actuator for well-head valve or other similar applications and system incorporating same |
Oct. 11, 2005 |
| 6874577 |
Water, oil and gas well recovery system |
Apr. 5, 2005 |
| 6860330 |
Choke valve assembly for downhole flow control |
Mar. 1, 2005 |
| 6834722 |
Cyclic check valve for coiled tubing |
Dec. 28, 2004 |
| 6817416 |
Flow control device |
Nov. 16, 2004 |
| 6782948 |
Remotely operated multi-zone packing system |
Aug. 31, 2004 |
| 6782951 |
Flow-activated valve and method of use |
Aug. 31, 2004 |
| 6763892 |
Sliding sleeve valve and method for assembly |
Jul. 20, 2004 |
| 6729393 |
Zero drill completion and production system |
May. 4, 2004 |
| 6679324 |
Downhole device for controlling fluid flow in a well |
Jan. 20, 2004 |
| 6634429 |
Upper zone isolation tool for intelligent well completions |
Oct. 21, 2003 |
| 6607037 |
Sand control seal for subsurface safety valve |
Aug. 19, 2003 |
| 6604582 |
Downhole fluid pressure signal generation and transmission |
Aug. 12, 2003 |
| 6543544 |
Low power miniature hydraulic actuator |
Apr. 8, 2003 |
| 6533037 |
Flow-operated valve |
Mar. 18, 2003 |
| 6513594 |
Subsurface safety valve |
Feb. 4, 2003 |
| 6494265 |
Flow control device |
Dec. 17, 2002 |
| 6491106 |
Method of controlling a subsurface safety valve |
Dec. 10, 2002 |
| 6488092 |
By-pass valve |
Dec. 3, 2002 |
|
|
|
