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Class Information
Number: 166/373
Name: Wells > Processes > Operating valve, closure, or changeable restrictor in a well
Description: Process for operating a fluid flow regulating device located in the well.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617876 |
Formation isolation valve and method of use |
Nov. 17, 2009 |
| 7617875 |
Shifting apparatus and method |
Nov. 17, 2009 |
| 7607485 |
Tubing hanger and wellhead housing with mating tubing annulus passages |
Oct. 27, 2009 |
| 7597151 |
Hydraulically operated formation isolation valve for underbalanced drilling applications |
Oct. 6, 2009 |
| 7597149 |
Safety valve with extension springs |
Oct. 6, 2009 |
| 7597150 |
Water sensitive adaptive inflow control using cavitations to actuate a valve |
Oct. 6, 2009 |
| 7581596 |
Downhole tool with C-ring closure seat and method |
Sep. 1, 2009 |
| 7578350 |
Gas minimization in riser for well control event |
Aug. 25, 2009 |
| 7575058 |
Incremental annular choke |
Aug. 18, 2009 |
| 7571773 |
Multiple ball launch assemblies and methods of launching multiple balls into a wellbore |
Aug. 11, 2009 |
| 7568527 |
Method of collecting crude oil and crude oil collection header apparatus |
Aug. 4, 2009 |
| 7562712 |
Setting tool for hydraulically actuated devices |
Jul. 21, 2009 |
| 7556102 |
High differential shifting tool |
Jul. 7, 2009 |
| 7543634 |
Method and apparatus for wellbore fluid treatment |
Jun. 9, 2009 |
| 7543636 |
Diagnostic sleeve shifting tool |
Jun. 9, 2009 |
| 7543649 |
Method of collecting crude oil and crude oil collection header apparatus |
Jun. 9, 2009 |
| 7537056 |
System and method for gas shut off in a subterranean well |
May. 26, 2009 |
| 7530400 |
Downhole tool for selectively catching balls in a well bore |
May. 12, 2009 |
| 7520329 |
Injection valve |
Apr. 21, 2009 |
| 7516792 |
Remote intervention logic valving method and apparatus |
Apr. 14, 2009 |
| 7510013 |
Hydraulic metering valve for operation of downhole tools |
Mar. 31, 2009 |
| 7503392 |
Deformable ball seat |
Mar. 17, 2009 |
| RE40648 |
System and method for downhole operation using pressure activated valve and sliding sleeve |
Mar. 10, 2009 |
| 7500526 |
Downhole tool |
Mar. 10, 2009 |
| 7484566 |
Pulse width modulated downhole flow control |
Feb. 3, 2009 |
| 7475732 |
Instrumentation for a downhole deployment valve |
Jan. 13, 2009 |
| 7475733 |
Communication tool for accessing a non annular hydraulic chamber of a subsurface safety valve |
Jan. 13, 2009 |
| 7467658 |
Down hole drilling fluid heating apparatus and method |
Dec. 23, 2008 |
| 7455114 |
Snorkel device for flow control |
Nov. 25, 2008 |
| 7455115 |
Flow control device |
Nov. 25, 2008 |
| 7451809 |
Apparatus and methods for utilizing a downhole deployment valve |
Nov. 18, 2008 |
| 7451825 |
Annular choke |
Nov. 18, 2008 |
| 7438130 |
Downhole actuating apparatus and method |
Oct. 21, 2008 |
| 7426962 |
Flow control device for an injection pipe string |
Sep. 23, 2008 |
| 7424917 |
Subsea pressure compensation system |
Sep. 16, 2008 |
| 7422065 |
System for controlling zones of fluid in and out of a wellbore |
Sep. 9, 2008 |
| 7409999 |
Downhole inflow control device with shut-off feature |
Aug. 12, 2008 |
| 7409996 |
Control system communication and lock open tool and method for locking open a safety valve and communicating with surface |
Aug. 12, 2008 |
| 7397388 |
Borehold telemetry system |
Jul. 8, 2008 |
| 7389819 |
Well screen |
Jun. 24, 2008 |
| 7387165 |
System for completing multiple well intervals |
Jun. 17, 2008 |
| 7370706 |
Gas lift valve for high pressure operation |
May. 13, 2008 |
| 7363981 |
Seal stack for sliding sleeve |
Apr. 29, 2008 |
| 7360600 |
Subsurface safety valves and methods of use |
Apr. 22, 2008 |
| 7350582 |
Wellbore tool with disintegratable components and method of controlling flow |
Apr. 1, 2008 |
| 7347272 |
Formation isolation valve |
Mar. 25, 2008 |
| 7322410 |
Controllable production well packer |
Jan. 29, 2008 |
| 7318478 |
Downhole ball circulation tool |
Jan. 15, 2008 |
| 7299880 |
Surge reduction bypass valve |
Nov. 27, 2007 |
| 7281586 |
Mounts for blowout preventer bonnets |
Oct. 16, 2007 |
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