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Class Information
Number: 166/386
Name: Wells > Processes > Placing or shifting well part > Fluid flow control member (e.g., plug or valve)
Description: Process wherein the element comprises a device for regulating or obstructing fluid flow in the central conduit or tubing of the well.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8499841 Frac sleeve with rotational inner diameter opening Aug. 6, 2013
8479826 Protection of a safety valve in a subterranean well Jul. 9, 2013
8479831 Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well Jul. 9, 2013
8474543 Method and apparatus for controlling the flow of fluids from a well below the surface of the water Jul. 2, 2013
8469109 Deformable dart and method Jun. 25, 2013
8469107 Downhole-adjustable flow control device for controlling flow of a fluid into a wellbore Jun. 25, 2013
8469105 Downhole-adjustable flow control device for controlling flow of a fluid into a wellbore Jun. 25, 2013
8464795 Annulus isolation valve Jun. 18, 2013
8459376 System for drilling under balanced wells Jun. 11, 2013
8459363 Control mechanism for subsurface safety valve Jun. 11, 2013
8453746 Well tools with actuators utilizing swellable materials Jun. 4, 2013
8443892 Fracturing with telescoping members and sealing the annular space May. 21, 2013
8443906 Tools and methods useful with wellbore reverse circulation May. 21, 2013
8424611 Downhole safety valve having flapper and protected opening procedure Apr. 23, 2013
8403067 Repeatable, compression set downhole bypass valve Mar. 26, 2013
8403068 Indexing sleeve for single-trip, multi-stage fracing Mar. 26, 2013
8397820 Method and apparatus for wellbore fluid treatment Mar. 19, 2013
8397823 Tubular actuator, system and method Mar. 19, 2013
8393386 Subsurface safety valve and method of actuation Mar. 12, 2013
8393403 Drill string flow control valves and methods Mar. 12, 2013
8393404 Downhole multiple bore rotary diverter apparatus Mar. 12, 2013
8387710 Downhole fluid recirculation valve and method for recirculating fluid in a well Mar. 5, 2013
8376058 Well drilling wash down end cap and method Feb. 19, 2013
8371386 Rotatable valve for downhole completions and method of using same Feb. 12, 2013
8360141 Launching tool with interlock system for downhole cement plug and method Jan. 29, 2013
8360145 Selective placement of conformance treatments in multi-zone well completions Jan. 29, 2013
8353353 Surface controlled subsurface safety valve assembly with primary and secondary valves Jan. 15, 2013
8353355 Drill string/annulus sealing with swellable materials Jan. 15, 2013
8342251 Shoe for wellbore lining tubing Jan. 1, 2013
8336627 Retrievable inflow control device Dec. 25, 2012
8327937 Equipment for remote launching of cementing plugs Dec. 11, 2012
8327941 Flow control device and method for a downhole oil-water separator Dec. 11, 2012
8316951 Tubular actuator and method Nov. 27, 2012
8316943 Methods and apparatus for a downhole tool Nov. 27, 2012
8312931 Flow restriction device Nov. 20, 2012
8307905 Activating mechanism Nov. 13, 2012
8302698 Activation-device launcher for a cementing head Nov. 6, 2012
8297364 Telescopic unit with dissolvable barrier Oct. 30, 2012
8297367 Mechanism for activating a plurality of downhole devices Oct. 30, 2012
8286717 Tools and methods for hanging and/or expanding liner strings Oct. 16, 2012
8290632 Method for controlling production and downhole pressures of a well with multiple subsurface zones and/or branches Oct. 16, 2012
8281817 Laminar flow tool Oct. 9, 2012
8281863 Detachable electrical actuator Oct. 9, 2012
8276669 Variable flow resistance system with circulation inducing structure therein to variably resist flow in a subterranean well Oct. 2, 2012
8276676 Pressure-activated valve for hybrid coiled tubing jointed tubing tool string Oct. 2, 2012
8276674 Deploying an untethered object in a passageway of a well Oct. 2, 2012
8276665 Plug release apparatus Oct. 2, 2012
8272445 Tubular valve system and method Sep. 25, 2012
8267167 Subsurface safety valve and method of actuation Sep. 18, 2012
8267178 Valve for hydraulic fracturing through cement outside casing Sep. 18, 2012

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