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9022130 Downhole valve tool and method of use  
A downhole isolation valve for testing the integrity of a tubular within a wellbore includes a tubular body with an axial through bore having a reduced diameter portion defining a valve seat and a...
9010353 Gas lift valve having edge-welded bellows and captive sliding seal  
A gas lift apparatus has a gas lift valve that disposes in a mandrel. A housing of the valve has a chamber, and a seat disposes between the inlet and outlet. A piston movably disposed in the...
8985222 Method and apparatus for controlling fluid flow using movable flow diverter assembly  
Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is...
8978775 Downhole valve assembly and methods of using the same  
A wellbore servicing system including a work string and a valve tool defining an flowbore, wherein the valve tool is transitionable from a first mode to a second mode, from the second mode to a...
8973663 Pump through circulating and or safety circulating valve  
According to one embodiment, a recirculation safety valve is disclosed. The valve has a tubular body with mandrel that is axially shifted in response to annulus pressure. Shifting of the mandrel...
8967267 Fluid discrimination for use with a subterranean well  
A fluid discrimination system can include a fluid discriminator which selects through which of multiple outlet flow paths a fluid composition flows, the selection being based on a direction of...
8960316 Interventionless adjustable flow control device using inflatables  
A flow control device comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restriction...
8931577 Double valve block and actuator assembly including same  
A valve comprises a housing including a first chamber, a second chamber, and a neutral chamber. In addition, the valve comprises a stem disposed within the housing. Further, the valve comprises a...
8931559 Downhole isolation and depressurization tool  
A depressurization tool is described for use downhole in depressurizing an isolated zone. A decompression chamber containing a compressible fluid volume is described. The opening of the chamber is...
8931570 Reactive in-flow control device for subterranean wellbores  
An apparatus for controlling fluid in-flow into a wellbore tubular includes a translating flow control element having one or more fluid conveying conduits; and a reactive element that actuates the...
8919438 Detection and quantification of isolation defects in cement  
A method for evaluating wellbore integrity including introducing a drill to a surface of a casing encompassing an annulus, enclosing the drill in a housing hydraulically isolating the surface,...
8910717 Frangible pressure control plug, actuatable tool including the plug, and method thereof  
A frangible pressure control plug includes a first portion of a body adjacent a first end of the plug. A second portion of the body adjacent a second end of the plug. The second portion attached...
8905144 Variable flow resistance system with circulation inducing structure therein to variably resist flow in a subterranean well  
A flow control device can include a surface that defines a chamber and includes a side perimeter and opposing end surfaces, a greatest distance between the opposing end surfaces being smaller than...
8893804 Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well  
A method of propagating pressure pulses in a well can include flowing a fluid composition through a variable flow resistance system which includes a vortex chamber having at least one inlet and an...
8893806 Exercising a well tool  
An exercise tool assembly for operating a downhole tool auxiliary to a primary actuator system of the downhole tool includes a cylinder mandrel configured to be received in the central bore of the...
8893805 Bypass valve for use in well bores  
Bypass valve comprising a ported housing (1) and concentrical ported sleeve (2). Ported piston (3) is slidably arranged within the sleeve. Between sleeve and piston is a control system consisting...
8875797 Method for flow control and autonomous valve or flow control device  
A method for flow control and a self-adjusting valve or flow control device, in particular useful in a production pipe for producing oil and/or gas from a well in an oil and/or gas reservoir,...
8863843 Hydraulic actuation of a downhole tool assembly  
A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston...
8863848 Flow control apparatus and method  
An apparatus for controlling the flow of downhole fluids comprises a body having a throughbore and at least one port extending through a sidewall of the body to enable fluid communication between...
8863849 Electric submersible pumping completion flow diverter system  
A technique provides a system and methodology for enhancing the operational life of an electric submersible pumping system. A completion is combined with a flow diverter valve and is positioned...
8857454 Valving system and method of selectively halting injection of chemicals  
A valving system includes, a plurality of flow control valves, and a plurality of chemical control valves in operable communication with a plurality of the plurality of flow control valves such...
8844634 Circulation sub with indexing mechanism  
A downhole circulation sub or valve includes a tubular housing with an outer port and a valve piston slidably disposed in the housing. A primary fluid flow path extends through an inner flow bore...
8839849 Water sensitive variable counterweight device driven by osmosis  
A method for producing fluid from a subterranean formation includes configuring a body to at least partially fill with a selected fluid; and actuating a flow restriction element using the body....
8833466 Self-controlled inflow control device  
An inflow control device controls the rate of fluid flow from a subsurface fluid reservoir into a production tubing string. The inflow control device includes a particulate screen to remove...
8794331 Tools and methods for use in completion of a wellbore  
A ported tubular is provided for use in casing a wellbore, to permit selective access to the adjacent formation during completion operations. A system and method for completing a wellbore using...
8794330 Apparatus for single-trip time progressive wellbore treatment  
A single trip multizone time progressive well treating method and apparatus that provides a means to progressively stimulate individual zones through a cased or open hole well bore. This system...
8757267 Pressure range delimited valve with close assist  
A pressure-actuated valve fit to a tubing string for alternately closing to communicate fluids from a wellbore to the tubing string and opening to communicate fluids from a wellbore annulus to the...
8757266 Method and apparatus for controlling fluid flow using movable flow diverter assembly  
Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is...
8757252 Wellbore flow control devices comprising coupled flow regulating assemblies and methods for use thereof  
Wellbore flow control devices can be used in various subterranean operations to regulate access of formation fluids to the interior of a wellbore pipe and/or to limit the access of unwanted fluids...
8757275 Reclosable multi zone isolation tool and method for use thereof  
An apparatus for isolating a first zone from a second zone in a subterranean wellbore. The apparatus includes an outer tubular and an inner tubular disposed within the outer tubular forming an...
8739886 Downhole fluid flow control system having a fluidic module with a bridge network and method for use of same  
A downhole fluid flow control system includes a fluidic module (150) having a bridge network. The bridge network has first and second branch fluid pathways (163, 164) each including at least one...
8739887 Check valve for well stimulation  
Check valve assemblies operable to inject treatment fluids during stimulation operations are described. One check valve assembly includes a valve body defining an inlet, one or more discharge...
8727009 Surface signal for flow blockage for a subterranean debris collection apparatus  
The debris collection device operates on an eductor principle with motive fluid delivered from the surface into an eductor housing inlet. The eductor outlet goes into a surrounding annular space...
8720572 High pressure fast response sealing system for flow modulating devices  
Disclosed is an apparatus, method and system comprising one or more devices capable of modulating fluid flow, the fluid being a liquid or a gas resulting in a pressure fluctuation in a fluid...
8720545 Continuous flow drilling systems and methods  
A method for drilling a wellbore includes drilling the wellbore by injecting drilling fluid into a top of a tubular string disposed in the wellbore at a first flow rate and rotating a drill bit....
8714264 Dual barrier side pocket mandrel  
A side pocket mandrel has openings to receive a plurality of valves such that the flow of fluid from outside the string and into the tubular such as in gas lift will flow through the valves in...
8714266 Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system  
Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is...
8708050 Method and apparatus for controlling fluid flow using movable flow diverter assembly  
Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is...
8701782 Subsurface safety valve with metal seal  
A biased actuator includes, a reservoir, at least one piston in operable communication with the reservoir, at least one metal seal and a biasing system in operable communication with both the...
8701778 Downhole tester valve having rapid charging capabilities and method for use thereof  
A downhole tester valve (100) includes a housing assembly (106) and a mandrel assembly (172, 174) that define therebetween an operating fluid chamber (176), a biasing fluid chamber (184) and a...
8701777 Downhole fluid flow control system and method having dynamic response to local well conditions  
A downhole fluid flow control system having dynamic response to local well conditions. The system includes a tubing string operably positionable in a wellbore. Annular barriers are positioned...
8695709 Self-orienting crossover tool  
A crossover tool has an internal sleeve rotatably positioned within an external sleeve, and each of the sleeves has ports alignable with ports on the other sleeve. After deploying the crossover...
8695716 Multi-zone fracturing completion  
A ported housing that may be connected along a casing string and the method for use of the ported housing in fracturing and/or treating multiple zones in a well. A sleeve is connected to the...
8689887 Methods of operating a radial flow valve  
A radial flow valve is disclosed which includes a plurality of flow openings, a first piston and a second piston, the first and second pistons being independently actuable relative to one another,...
8678110 Mud saver valve and method of operation of same  
A mud saver valve, positionable at the bottom of the drill string, above the bit, which includes an elongated body portion; portion of the valve housing a compressible spring a pressure; a valve...
8668014 Subsurface safety valve for high temperature and high pressure wells  
A subsurface safety valve particularly designed for high temperature and high pressure applications has an improved tubular joint connection that provides for a compliant metal to metal seal...
8668004 Tubing hanger running tool with integrated pressure release valve  
A system, in certain embodiments, includes a subsurface safety valve (SSV) biased toward a closed position, and configured to open by application of hydraulic pressure. The system also includes a...
8646535 Flow restriction devices  
An inflow control device may include flow control elements along a flow path. The flow control elements may change the inertial direction of the fluid flowing in the flow path. The change in...
8627890 Rotating continuous flow sub  
A method for drilling a wellbore includes drilling the wellbore by advancing the tubular string longitudinally into the wellbore; stopping drilling by holding the tubular string longitudinally...
8622136 Method and apparatus for controlling fluid flow using movable flow diverter assembly  
Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is...