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US20120103595 Sintered Polycrystalline Diamond Tubular Members  
In one aspect of the present invention, an external tubular member comprises an external outside surface and an external inside surface joined by an external wall thickness. The external wall...
US20110259575 INJECTION OF LIQUID INTO BOREHOLES, WITH SUCKBACK PULSING  
When injecting liquids into the ground, imposing pulses on the injected liquid is effective to increase penetration and saturation of the ground. Imposing suckback onto the pulses is effective to...
US20110048742 Downhole Safety Valve Having Flapper and Protected Opening Procedure  
A downhole valve has a closure device (e.g., one or more flappers) for closing off the valve. A no-go actuation mechanism protects the flappers from damage. When the flappers are closed, the...
US20090229829 Hydraulic Bi-Directional Rotary Isolation Valve  
A valve having a sealing surface that is rotated 90 degrees on trunnions that move along a track is provided. A sleeve that moves into position to protect the valve mechanism when the valve is in...
US20110017469 ROTATABLE VALVE FOR DOWNHOLE COMPLETIONS  
Method and apparatus for performing a series of downhole operations. The method can include conveying a work string with an integrated valve into a wellbore. As the work string with the integrated...
US20140116714 Plunger Lift Apparatus  
An improved bypass valve assembly for a plunger lift apparatus comprises a bypass valve cage having improved flow characteristics and a simplified clutch assembly having enhanced durability and...
US20150191999 DOWNHOLE ACTIVATION ASSEMBLY WITH OFFSET BORE AND METHOD OF USING SAME  
The disclosure relates to a downhole activation assembly for activating a downhole component of a downhole tool positionable in a wellbore penetrating a subterranean formation. The activation...
US20120012322 Auto-production frac tool  
Fracturing tools for use in oil and gas wells comprise an inner sleeve, an outer sleeve, a run-in position, and two operational positions. The inner sleeve comprises two ports and two positions....
US20080210431 FLAPPER LATCH  
The present invention generally relates to a method and an apparatus for selectively isolating a portion of a wellbore. In one aspect, an apparatus for isolating a zone in a wellbore is provided....
US20080000697 Systems and Methods for Completing a Multiple Zone Well  
A system for use in a wellbore having a plurality of well zones includes a tubing disposed in the wellbore; and a plurality of valves connected to the tubing, wherein each of the plurality of...
US20090050335 DOWNHOLE VALVE HAVING INCREMENTALLY ADJUSTABLE OPEN POSITIONS AND A QUICK CLOSE FEATURE  
A valve that is usable with a well includes an indexer and a closing mechanism. The indexer includes a profile to establish a sequence of open settings for the valve, and the indexer is adapted to...
US20150129232 ROTATIONAL WELLBORE TEST VALVE  
A rotationally activated downhole well valve for connection in a tubing string is disclosed that can be repeatedly opened and closed selectively to place the tubing string in communication with...
US20130277043 INFLOW ASSEMBLY  
The present invention relates to a an inflow assembly (1) for controlling fluid flow between a hydrocarbon reservoir (2) and a production casing in a well, comprising a first tubular (4) having an...
US20110203806 ARRANGEMENT FOR DIRECTING A FLUID FLOW  
An arrangement for directing a fluid flow or a tool transported in a fluid flow in an under water structure includes plural flow line arrangements each including at least one flow line, and at...
US20120043092 BLAPPER VALVE TOOLS AND RELATED METHODS  
Various embodiments of the present invention disclose enhanced and improved well production tools for increasing the stability of production zones in a wellbore. Various embodiments of the present...
US20110056695 VALVES, BOTTOM HOLE ASSEMBLIES, AND METHOD OF SELECTIVELY ACTUATING A MOTOR  
Aspects of the invention provide valves, bottom hole assemblies, and methods of selectively actuating a motor. One aspect of the invention provides a valve including: a barrel having an interior...
US20100276153 Remotely Operated Drill Pipe Valve  
A valve, such as a ball valve, is assembled and carried by a running tool. The valve is actuated by an actuator that is triggered by the running tool, and thus opens and closes communication...
US20090056939 FLOW CONTROL DEVICE AND METHOD FOR A DOWNHOLE OIL-WATER SEPARATOR  
A downhole device having an oil/water separator having a well fluid inlet, an oil stream outlet conduit, and a water stream outlet conduit; a removable flow-restrictor located in at least one of...
US20120160503 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...
US20100071896 Downhole apparatus and method  
A downhole apparatus adapted to be run on a workstring in a well bore. The apparatus has a body including ports and a valve which is rotatable to open and close the ports to selectively allow...
US20110266001 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...
US20120152550 Method for Inducing Fracture Complexity in Hydraulically Fractured Horizontal Well Completions  
A formation servicing system comprising a casing string, a first sleeve system and a second sleeve system, each of the first and second sleeve system being incorporated within the casing string...
US20110209880 Drill String Valve Actuator with Inflatable Seals  
Method and actuator system for a Kellyguard valve disposed in a drill string. The actuator system includes a sleeve that includes a cavity; an actuator disposed inside the cavity and configured to...
US20110147007 Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore  
A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow...
US20110147006 Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore  
A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow...
US20140008080 Low Equivalent Circulation Density Setting Tool  
A downhole oilfield tool assembly comprises a mandrel, a ball valve oriented to block downwards flow through the mandrel in a closed position, a first piston located above the ball valve and at...
US20120145404 CONTROLLING FLOW BETWEEN A WELLBORE AND AN EARTH FORMATION  
A valve for controlling flow in a subterranean well can include a working fluid and a closure member which rotates in response to phase change in the working fluid. A well system can include a...
US20140054041 APPARATUS FOR CREATING BIDIRECTIONAL ROTARY FORCE OR MOTION IN A DOWNHOLE DEVICE AND METHOD OF USING SAME  
A method for fracturing a wellbore in a formation, including positioning one or more bidirectional rotary sleeves on tubular members into the wellbore; engaging a unidirectional rotary source in a...
US20130284451 Delayed Activation Activatable Stimulation Assembly  
A wellbore servicing apparatus comprising a housing defining an axial flowbore and comprising one or more ports providing a route of fluid communication between the axial flowbore and an exterior...
US20110088912 Downhole hydraulic control line  
The invention relates to a downhole hydraulic control tool comprising a substantially tubular body adapted for connection in a tubing string, the body including a throughbore arranged coaxially...
US20100155143 CONTINUOUS FLUID CIRCULATION VALVE FOR WELL DRILLING  
Fluid circulation valve (10) is provided for use with a well drilling operation, so that a drill joint may be added to or removed from the drill string while circulating fluid into the well. Valve...
US20130284428 FLUID DRIVEN PUMP FOR REMOVING DEBRIS FROM A WELLBORE AND METHODS OF USING SAME  
A downhole tool for moving fluid through the tool comprises a rotatable sleeve disposed within a bore of the tool. The sleeve includes an opened upper end and a closed lower end to define a...
US20110073313 DEVICE FOR FIXING A VALVE TO A TUBULAR MEMBER  
A device for fixing a valve (1) to a tubular member (2) being situated in wellbore formed in a subterranean reservoir and is having at least one drainage section (11) including a plurality of such...
US20090065214 Apparatus for controlling a downhole device  
Apparatus for controlling a downhole device such as a choke, the apparatus comprising a housing, a mandrel connected to the downhole device and moveable within the housing to move the device...
US20120247780 Thermally-Actuated Gas Lift Safety Valve  
In one embodiment, a valve comprising a valve body; an orifice disposed within the valve body; a fluid flow restraining member located at a first location of the orifice, the fluid flow...
US20150152714 METHOD AND APPARATUS FOR TREATING A WELLBORE  
The present invention generally concerns the treatment of hydrocarbon-bearing formations adjacent a wellbore. In one embodiment, fracturing jobs are performed through the use of subs disposed in a...
US20150152710 METHOD AND APPARATUS FOR TREATING A WELLBORE  
The present invention generally concerns the treatment of hydrocarbon-bearing formations adjacent a wellbore. In one embodiment, fracturing jobs are performed through the use of subs disposed in a...
US20110005763 Subterranean Valve Operated by String Relative Movement  
A valve is mounted to a tubular string and has an actuation assembly that is isolated from well fluids. The valve member can be a ball that rotates on a pivot and is actuated by relative rotation...
US20100212963 Measurement while drilling apparatus and method of using the same  
A method and apparatus used to transmit information to the surface from a subsurface location during the process of drilling a borehole is described. A novel pressure pulse generator or “pulser”...
US20160194935 ADJUSTABLE CHOKE DEVICE FOR A PRODUCTION TUBE  
Variable flow, internally adjustable choke (100) configured to be incorporated into a production tubing (200) of a subterranean well (300). The internally adjustable choke (100) includes a...
US20160160606 ACTUATION ASSEMBLIES, HYDRAULICALLY ACTUATED TOOLS FOR USE IN SUBTERRANEAN BOREHOLES INCLUDING ACTUATION ASSEMBLIES AND RELATED METHODS  
Actuation assemblies include a valve assembly comprising a valve sleeve configured to rotate to selectively enable fluid flow through at least one aperture in the valve sleeve and into at least...
US20160123112 CHOKE  
A choke controlling fluid flow in a well has a conduit with an inlet and an outlet, and a flow restrictor comprising first and second choke members (10,20), one of which (20) rotates relative to...
US20160115767 WELL TOOL WITH INDEXING DEVICE  
A well tool can include an operator device with an operator profile and at least two routes, and an indexing device with a cam and a cam follower including a structure. The structure engages the...
US20160115764 METHODS AND APPARATUS RELATED TO AN EXPANDABLE PORT COLLAR  
A method and apparatus for cementing a casing string in a wellbore includes installing an expandable port collar in the casing string; providing cement from the casing string through at least one...
US20160076338 DOWNHOLE ADJUSTABLE STEAM INJECTION MANDREL  
A steam injection mandrel comprises a housing generally defining an axial flow bore and comprising one or more ports, an inner mandrel disposed within the housing, and a slot formed in the inner...
US20160017689 GRAVITY-BASED CASING ORIENTATION TOOLS AND METHODS  
Disclosed are systems and methods of orienting wellbore tubulars using gravity. Some disclosed orientation indicating devices include a housing defining a first flow channel and being arrangeable...
US20150376984 BRIDGE-TYPE CONCENTRIC CONTINUOUSLY ADJUSTABLE WATER DISTRIBUTOR  
The present invention provides a bridge concentric continuously adjustable water regulator, comprising: an outer tube; an adjusting sleeve disposed in the outer tube; a concentric valve connected...
US20150354318 AUTOMATIC TUBING DRAIN  
An automatic tubing drain for rotary pumps automatically closes when the pump starts and opens when the pump stops using reactive torque generated by the pump.
US20150337627 FLOW RINGS FOR REGULATING FLOW IN AUTONOMOUS INFLOW CONTROL DEVICE ASSEMBLIES  
Disclosed are wellbore flow control devices that allow on-site field adjustments to flow characteristics. One autonomous inflow control device (AICD) assembly includes a base pipe defining one or...
US20150315870 Composite Wellbore Ball Valve  
A composite wellbore ball valve has a spherical, fiber reinforced composite ball valve closure. The closure has an interior, central through-bore and an annular metallic sealing surface. A ball...

Matches 1 - 50 out of 53 1 2 >