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Class Information
Number: 166/374
Name: Wells > Processes > Operating valve, closure, or changeable restrictor in a well > Operated by fluid pressure controlled above ground
Description: Process wherein the flow regulating device is operated by a fluid pressure change which is initiated by an above ground operator.










Sub-classes under this class:

Class Number Class Name Patents
166/375 By auxilliary fluid control line 180


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8689887 Methods of operating a radial flow valve Apr. 8, 2014
8684093 Electromechanical actuator apparatus and method for down-hole tools Apr. 1, 2014
8668018 Selective dart system for actuating downhole tools and methods of using same Mar. 11, 2014
8657014 Artificial lift system and method for well Feb. 25, 2014
8646523 Method and materials for proppant flow control with telescoping flow conduit technology Feb. 11, 2014
8640776 Fluid injection device Feb. 4, 2014
8602111 Method and system for controlling a downhole flow control device Dec. 10, 2013
8596368 Resettable pressure cycle-operated production valve and method Dec. 3, 2013
8596365 Resettable pressure cycle-operated production valve and method Dec. 3, 2013
8584762 Downhole fluid flow control system having a fluidic module with a bridge network and method for use of same Nov. 19, 2013
8567509 Downhole tool Oct. 29, 2013
8479832 Method and apparatus for setting an inflatable packer in a subhydrostatic wellbore Jul. 9, 2013
8479826 Protection of a safety valve in a subterranean well Jul. 9, 2013
8453749 Control system for an annulus balanced subsurface safety valve Jun. 4, 2013
8443892 Fracturing with telescoping members and sealing the annular space May. 21, 2013
8418769 Tubular actuator and method Apr. 16, 2013
8403049 Methods and devices for one trip plugging and perforating of oil and gas wells Mar. 26, 2013
8365832 Position retention mechanism for maintaining a counter mechanism in an activated position Feb. 5, 2013
8322447 Generating power in a well Dec. 4, 2012
8316951 Tubular actuator and method Nov. 27, 2012
8291984 Control device for an inflatable tool for the treatment of a well or a pipeline Oct. 23, 2012
8256518 Fail as is mechanism and method Sep. 4, 2012
8251150 Radial flow valve and method Aug. 28, 2012
8232892 Method and system for operating a well service rig Jul. 31, 2012
8201633 Switchable circulating tool Jun. 19, 2012
8186440 Fluid injection device May. 29, 2012
8181705 Fluid injection device May. 22, 2012
8157016 Fluid metering device and method for well tool Apr. 17, 2012
8151891 Formation saver sub and method Apr. 10, 2012
8104538 Fracturing with telescoping members and sealing the annular space Jan. 31, 2012
8069926 Method of controlling flow through a drill string using a valve positioned therein Dec. 6, 2011
8006779 Pressure cycle operated perforating firing head Aug. 30, 2011
7980315 System and method for selectively communicatable hydraulic nipples Jul. 19, 2011
7975766 Top filling tubing Jul. 12, 2011
7954555 Full function downhole valve and method of operating the valve Jun. 7, 2011
7926573 Circulation control valve and associated method Apr. 19, 2011
7926574 Fluid actuated circulating sub Apr. 19, 2011
7921922 Formation saver sub and method Apr. 12, 2011
7866402 Circulation control valve and associated method Jan. 11, 2011
7866401 Safety valve for use in an injection well Jan. 11, 2011
7861790 Injection valve and method Jan. 4, 2011
7836961 Integrated hydraulic setting and hydrostatic setting mechanism Nov. 23, 2010
7806184 Fluid operated well tool Oct. 5, 2010
7793729 Gate valve and method of controlling pressure during casing-while-drilling operations Sep. 14, 2010
7775285 Apparatus and method for servicing a wellbore Aug. 17, 2010
7770652 Ball release procedure and release tool Aug. 10, 2010
7766086 Fluid actuated circulating sub Aug. 3, 2010
7748462 Actuating mechanism Jul. 6, 2010
7694742 Downhole hydraulic control system with failsafe features Apr. 13, 2010
7690432 Apparatus and methods for utilizing a downhole deployment valve Apr. 6, 2010

1 2 3 4 5










 
 
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