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Class Information
Number: 166/332.4
Name: Wells > Valves, closures or changeable restrictors > Longitudinally movable operator > Operated by means inserted from the surface
Description: Longitudinally moveable operator wherein a tool is inserted into the well from the wellhead to actuate the flow regulating device.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8689887 Methods of operating a radial flow valve Apr. 8, 2014
8672035 Downhole tool of high pressure operating cycle capability Mar. 18, 2014
8668012 System and method for servicing a wellbore Mar. 11, 2014
8646533 Mechanical sliding sleeve Feb. 11, 2014
8636059 Downhole circulating valve having a seal plug Jan. 28, 2014
8596366 Wellbore flow control devices comprising coupled flow regulating assemblies and methods for use thereof Dec. 3, 2013
8579027 Multi-functional completion tool Nov. 12, 2013
8540019 Fracturing system and method Sep. 24, 2013
8522877 Sliding sleeve locking mechanisms Sep. 3, 2013
8505632 Method and apparatus for deploying and using self-locating downhole devices Aug. 13, 2013
8459364 Method and device for securing a well Jun. 11, 2013
8459365 Apparatus for creating bidirectional rotary force or motion in a downhole device and method for using same Jun. 11, 2013
8443894 Anchor/shifting tool with sequential shift then release functionality May. 21, 2013
8424611 Downhole safety valve having flapper and protected opening procedure Apr. 23, 2013
8371375 Wireline run mechanically or hydraulically operated subterranean insert barrier valve and associated landing nipple Feb. 12, 2013
8365829 Tubular seat and tubular actuating system Feb. 5, 2013
8316951 Tubular actuator and method Nov. 27, 2012
8286710 Valve assembly Oct. 16, 2012
8281863 Detachable electrical actuator Oct. 9, 2012
8251150 Radial flow valve and method Aug. 28, 2012
8215401 Expandable ball seat Jul. 10, 2012
8167048 Frac gate and well completion methods May. 1, 2012
8141648 Multiple-positioning mechanical shifting system and method Mar. 27, 2012
8006772 Multi-cycle isolation valve and mechanical barrier Aug. 30, 2011
7971646 Multi-position valve for fracturing and sand control and associated completion methods Jul. 5, 2011
7971639 Device for conducting cementing operations and inflow regulation Jul. 5, 2011
7934553 Method for controlling placement and flow at multiple gravel pack zones in a wellbore May. 3, 2011
7909102 Frac gate and well completion methods Mar. 22, 2011
7878257 Triggering mechanism discriminated by length difference Feb. 1, 2011
7866396 Systems and methods for completing a multiple zone well Jan. 11, 2011
7810575 Isolation system comprising a plug and a circulation valve and method of use Oct. 12, 2010
7784553 Downhole waterflood regulator Aug. 31, 2010
7766088 System and method for actuating wellbore tools Aug. 3, 2010
7762323 Composite cement retainer Jul. 27, 2010
7748463 Cementing valve Jul. 6, 2010
7730944 Multi-function completion tool Jun. 8, 2010
7712538 Method and apparatus for multi-positioning a sleeve May. 11, 2010
7669664 Apparatus and method for opening and closing lateral boreholes Mar. 2, 2010
7665526 System and method for downhole operation using pressure activated and sleeve valve assembly Feb. 23, 2010
7661478 Ball drop circulation valve Feb. 16, 2010
7628213 Multi-cycle downhole tool with hydraulic damping Dec. 8, 2009
7604055 Completion method with telescoping perforation and fracturing tool Oct. 20, 2009
7597151 Hydraulically operated formation isolation valve for underbalanced drilling applications Oct. 6, 2009
7581596 Downhole tool with C-ring closure seat and method Sep. 1, 2009
7575062 Methods and devices for treating multiple-interval well bores Aug. 18, 2009
7556102 High differential shifting tool Jul. 7, 2009
7543636 Diagnostic sleeve shifting tool Jun. 9, 2009
7533728 Ball operated back pressure valve May. 19, 2009
7497265 Reclosable mechanical annular flow valve Mar. 3, 2009
7472756 Valve apparatus with seal assembly Jan. 6, 2009

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