135532 ⎘
Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for locking the closing element in open or closed position
Sub-classes:SAFETY VALVE HARNESSING WEIGHT AND GRAVITY FOR FAIL-SAFE CLOSURE
#2BALL SCREW AND ELECTRIC BRAKE FOR A TUBING-RETRIEVABLE SAFETY VALVE
#3TUBING AND CONTROL LINE HYDROSTATIC-INSENSITIVE SINGLE CONTROL LINE SAFETY VALVE
#4DUAL SLEEVE VALVE SYSTEM
#5SAFETY VALVE HARNESSING WEIGHT AND GRAVITY FOR FAIL-SAFE CLOSURE
#6SPRING ASSEMBLY INCLUDING TWO SEPARATE INDEPENDENT WAVE SPRINGS
#7MULTIPRESSURE CYCLING VALVE FOR A TOE PORT
#8Convertible valve for use in a subterranean well
#9ANNULUS ACTIVATED DRAIN VALVE, METHOD AND SYSTEM
#10DOWNHOLE VALVE ASSEMBLY WITH CEMENT-ISOLATED FLOWPATH
#11VALVE ASSEMBLY FOR INFLATABLE PACKERS
#12HYDRAULIC LOCK APPARATUS
#13Pressure actuated valve for use during installation and commission of a production string
#14Safety valve for a fluid extraction well installation
#15Autofill, circulation, and production valve for well completion systems
#16Liquid spring communication sub
#17Pressure-activated valve assemblies and methods to remotely activate a valve
#18HYDRAULIC INDEXING SYSTEM
#19Valve assembly, a production tubing system and a production tubing sub
#20Universal wireless actuator for surface-controlled subsurface safety valve
#21Electrostatic motor control of a sub surface safety valve
#22Downhole tool actuator with viscous fluid clearance paths
#23Circulation valve
#24Stopping fluid flow through a stuck open inflow control valve
#25Expandable metal packer system with pressure control device
#26Multiple port opening method with single pressure activation
#27Locking backpressure valve
#28Locking backpressure valve with shiftable valve sleeve
#29Locking backpressure valve
#30Multi-piston activation mechanism
#31Methods and systems for a toe sleeve
#32Quick closing valve system and methodology
#33Smart circulation sub
#34Downhole apparatus
#35Pressure operated apparatus and method
#36Single-line control system for a well tool
#37Squeeze packer and method of setting a squeeze packer
#38High integrity protection system for hydrocarbon flow lines
#39CROSSOVER VALVE SYSTEM AND METHOD FOR GAS PRODUCTION
#40Hydraulic indexing system
#41Methods and systems for a toe sleeve
#42System and method for stimulating a well
#43Testable sliding sleeve valve
#44Control line pressure controlled safety valve equalization
#45Fluid injection valve
#46Stored-energy pressure activated completion and testing tools and methods of use
#47Subterranean Valve Testing, Lubricating, and Sealing Device
#48Methods and systems for controlling substances flowing through in an inner diameter of a tool
#49High integrity protection system for hydrocarbon flow lines
#50Pressure exchanger wear prevention
#51Hydraulic port collar
#52Hydraulic port collar
#53Bidirectional downhole isolation valve
#54Splitflow valve and method of use
#55Switchable crossover tool with hydraulic transmission
#56Methods and systems for a pin point frac sleeves system
#57Methods and systems for a bridge plug
#58Downhole sub with hydraulically actuable sleeve valve
#59DIFFERENTIAL SAFETY VALVE
#60Closeable sleeve assembly and method of use
#61Pressure activated completion tools and methods of use
#62Managed pressure reverse cementing
#63Methods and systems for controlling substances flowing through in an inner diameter of a tool
#64Toe valve
#65Hydraulic fluid distribution assembly
#66Valve and method
#67Tool assembly and process for drilling branched or multilateral wells with whip-stock
#68Annulus access valve
#69Downhole completion tool
#70Flow control assembly
#71Subsurface safety valve with permanent lock open feature
#72Lock ring hold open device for frac sleeve
#73Tubing retrievable injection valve assembly
#74Downhole valve
#75Method and apparatus for injecting fluid into spaced injection zones in an oil/gas well
#76Magnetic flow valve for borehole use
#77Resettable sliding sleeve for downhole flow control assemblies
#78Methods and systems for setting and unsetting packers within a well
#79Pressure operated apparatus and method
#80Interventionless pressure operated sliding sleeve with backup operation with intervention
#81Annulus isolation valve assembly
#82Time-delayed downhole tool
#83Interventionless pressure operated sliding sleeve
#84Dual barrier injection valve with a variable orifice
#85Subsurface safety valve for cable deployed electrical submersible pump
#86MECHANICALLY LOCKABLE AND UNLOCKABLE HYDRAULICALLY ACTIVATED VALVE, BOREHOLE SYSTEM AND METHOD
#87Stage cementing tool
#88Remote hydraulic control of downhole tools
#89Tubing retrievable injection valve assembly
#90Multi-zone fracturing with full wellbore access
#91Methods and systems for stimulating and restimulating a well
#92DIFFERENTIAL FILL VALVE ASSEMBLY FOR CASED HOLE
#93Methods and systems for a pin point frac sleeves system
#94Failsafe valve system
#95CONTROLLED OPENING VALVE
#96Downhole completion tool
#97Pressure cycle actuated injection valve
#98Toe valve
#99Oil field tubular and an internal sleeve for use therewith, and a method of deactivating a float valve within the oil field tubular
#100Remotely operated production valve
#101Force multiplyer used to actuate a ball valve
#102Stage tool for wellbore cementing
#103Annular barrier and downhole system for low pressure zone
#104Pressure balanced setting tool
#105Pressure activated completion tools and methods of use
#106Indexing dart system and method for wellbore fluid treatment
#107Ball valve and remotely releasable connector for drill string
#108Maintaining a downhole valve in an open position
#109Retrievable plugging tool for tubing
#110Method and apparatus for smooth bore toe valve
#111Cement head system and method for operating a cement head system
#112Flow activated valve
#113Bidirectional downhole isolation valve
#114Dual barrier injection valve with a variable orifice
#115Reverse flow catch-and-release tool and method
#116Downhole communication valve and method of use
#117Activation mechanism for a downhole tool and a method thereof
#118Downhole tool
#119Regulation of flow through a well tool spring
#120Deep set subsurface safety valve with a micro piston latching mechanism
#121Drill with remotely controlled operating modes and system and method for providing the same
#122Wellbore stimulation tool, assembly and method
#123Isolation valve with debris control and flow tube protection
#124Well treatment device, method, and system
#125Well treatment device, method, and system
#126Method and apparatus for injecting fluid into spaced injection zones in an oil/gas well
#127Multi-pressure toe valve
#128Downhole isolation valve
#129Chemical injection valve system
#130Method and apparatus for actuating a downhole tool
#131Crossover valve system and method for gas production
#132Tubing retrievable injection valve assembly
#133Apparatus, system and method for treating a reservoir using re-closeable sleeves and novel use of a shifting tool
#134Downhole assembly having isolation tool and method
#135Well barrier
#136Failsafe subsurface controlled safety valve
#137Wireline retrievable injection valve assembly with a variable orifice
#138Pressure differential device with constant pressure drop
#139Drill string check valve
#140Communication and lock open safety valve system and method
#141Well intervention pressure control valve
#142Tubing pressure operated downhole fluid flow control system
#143Interventionless downhole screen and method of actuation
#144Convertible valve with retained conversion element
#145Pressure dependent wellbore lock actuator mechanism
#146Dual barrier injection valve
#147Configurable and expandable fluid metering system
#148Pressure actuated ported sub for subterranean cement completions
#149Stage tool for wellbore cementing
#150Pressure responsive downhole tool with low pressure lock open feature and related methods
#151Selectively operated two way check valve for subterranean use
#152Remote hydraulic control of downhole tools
#153Flow control assembly
#154Float valve hold open devices and methods therefor
#155Downhole tools, systems and methods of using
#156Remote and manual actuated a well tool
#157Gravel pack circulating sleeve with locking features
#158Differential safety valve
#159Safety valve with lockout capability and methods of use
#160Downhole tool and method
#161Locking mechanism for downhole positioning of sleeves
#162Bottom hole assembly for wellbore completion
#163Switch between redundant control systems for a subsurface safety valve
#164Hydraulic cycle opening sleeve
#165Methods of operating well bore stimulation valves
#166Method and apparatus for smooth bore toe valve
#167Annular barrier with a self-actuated device
#168Downhole activation system using magnets and method thereof
#169Downhole completion tool
#170Flow stop valve
#171Dual magnetic sensor actuation assembly
#172Assembly for toe-to-heel gravel packing and reverse circulating excess slurry
#173Downhole sub with hydraulically actuable sleeve valve
#174Method for deploying subsurface safety valve having integral pack off
#175Downhole control system having a versatile manifold and method for use of same
#176Bidirectional downhole isolation valve
#177Pressure testing valve and method of using the same
#178Pressure testing valve and method of using the same
#179Isolation valve with debris control and flow tube protection
#180Method for individually servicing a plurality of zones of a subterranean formation
#181System and method for servicing a wellbore
#182Shear valve
#183Downhole activation system using magnets and method thereof
#184Pressure actuated ported sub for subterranean cement completions
#185Casing valves system for selective well stimulation and control
#186Method of completing a multi-zone fracture stimulation treatment of a wellbore
#187Sliding sleeve valve and method for fluid treating a subterranean formation
#188Reclosable multi zone isolation tool and method for use thereof
#189Deep set subsurface safety valve with a micro piston latching mechanism
#190Reclosable multi zone isolation tool and method for use thereof
#191Flow control system with variable staged adjustable triggering device
#192Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus
#193Wireline retrievable injection valve assembly with a variable orifice
#194Dual closure system for well system
#195Wiper plug elements and methods of stimulating a wellbore environment
#196Downhole activation system using magnets and method thereof
#197Apparatus and method for fracturing a well
#198Tubing retrievable injection valve assembly
#199Responsively activated wellbore stimulation assemblies and methods of using the same
#200Well barrier
#201Valve for hydraulic fracturing through cement outside casing
#202Valve for hydraulic fracturing through cement outside casing
#203Injection of fluid into selected ones of multiple zones with well tools selectively responsive to magnetic patterns
#204INJECTION OF FLUID INTO SELECTED ONES OF MULTIPLE ZONES WITH WELL TOOLS SELECTIVELY RESPONSIVE TO MAGNETIC PATTERNS
#205Flow stop valve
#206Tubular valving system and method
#207One trip toe-to-heel gravel pack and liner cementing assembly
#208Flow control screen assembly having remotely disabled reverse flow control capability
#209FLAPPER VALVE
#210Downhole tool
#211Casing relief valve
#212Stage tool for wellbore cementing
#213Remotely operated production valve and method
#214System and method for servicing a wellbore
#215Method for individually servicing a plurality of zones of a subterranean formation
#216Subsurface safety valve for high temperature and high pressure wells
#217Completion assembly for stimulating, segmenting and controlling ERD wells
#218Downhole tool
#219Downhole tool
#220Delayed opening wellbore tubular port closure
#221Gravel pack bypass assembly
#222Gravel pack assembly for bottom up/toe-to-heel packing
#223Multi-zone fracturing completion
#224Downhole material delivery
#225Downhole valve tool and method of use
#226Pump through circulating and or safety circulating valve
#227Isolation valve with debris control and flow tube protection
#228Irregularly shaped flapper closure and sealing surfaces
#229Multi-zone fracturing completion
#230System and method for servicing a wellbore
#231Tubing pressure insensitive control system
#232Pressure equalising devices
#233Controller for a Downhole Tool
#234Bottom hole assembly with ported completion and methods of fracturing therewith
#235Hydrostatic flapper stimulation valve and method
#236Downhole sub with hydraulically actuable sleeve valve
#237Casing shoes and methods of reverse-circulation cementing of casing
#238FLAPPER VALVE
#239FLAPPER VALVE AND METHOD
#240Operation of casing valves system for selective well stimulation and control
#241Flow stop valve and method
#242System and method for servicing a wellbore
#243Well tool with combined actuation of multiple valves
#244Hydraulic lockout device for pressure controlled well tools
#245Tubing pressure insensitive control system
#246Valve device and associated methods of selectively communicating between an interior and an exterior of a tubular string
#247Lock open and control system access apparatus for a downhole safety valve
#248Surface controlled subsurface safety valve having integral pack-off
#249Capillary hanger arrangement for deploying control line in existing wellhead
#250Mechanical bi-directional isolation valve
#251Multi-cycle isolation valve and mechanical barrier
#252Reverse action flow activated shut-off valve
#253Hydraulically openable ported sub
#254Hydraulic Bi-Directional Rotary Isolation Valve
#255Pressure equalising devices
#256Step ratchet mechanism
#257Casing valves system for selective well stimulation and control
#258Flapper latch
#259Multi-purpose pressure operated downhole valve
#260Valve for equalizer sand screens
#261Casing shoes and methods of reverse-circulation cementing of casing
#262Casing Shoes and Methods of Reverse-Circulation Cementing of Casing
#263Casing shoes and methods of reverse-circulation cementing of casing
#264Casing shoes and methods of reverse-circulation cementing of casing
#265Valve
#266Step ratchet mechanism
#267Flapper valve for use in downhole applications
#268Completion suspension valve system
#269Downhole flow control apparatus, operable via surface applied pressure
#270Subsurface safety valves and methods of use
#271System and method for downhole operation using pressure activated and sleeve valve assembly
#272Lubricator valve with rotational flip-flap arm
#273Reverse cementing float equipment
#274Safety valve for use in an injection well
#275Non-elastomer cement through tubing retrievable safety valve
#276Safety valve with extension springs
#277Casing shoes and methods of reverse-circulation cementing of casing
#278Safety valve lock out system and method
#279Lock for a downhole tool with a reset feature
#280Method and apparatus for selective injection or flow control with through-tubing operation capacity
#281Lock mechanism for a sliding sleeve
#282Cement-through, tubing retrievable safety valve
#283Cement control ring
#284Ball screw and electric brake for a tubing-retrievable safety valve
#285Dart valve with centralizer
#286Downhole safety valve and method of application
#287Downhole pump bypass valve apparatuses and methods