E21B 34 - Valve arrangements for boreholes or wells

Patents for E21B 34 - Valve arrangements for boreholes or wells (14,685)
10/2013
10/24/2013	US20130277059 Apparatus, Systems and Methods for Bypassing a Flow Control Device
10/24/2013	US20130277058 Flow control device, method and production adjustment arrangement
10/24/2013	US20130277043 Inflow assembly
10/24/2013	US20130276901 Apparatus, Systems and Methods for a Flow Control Device
10/23/2013	EP2652260A2 Controlling flow of steam into and/or out of a wellbore
10/23/2013	EP2652252A2 Geothermal energy production
10/23/2013	EP2652251A2 Restricting production of gas or gas condensate into a wellbore
10/23/2013	EP2652248A2 Controlling flow between a wellbore and an earth formation
10/23/2013	EP2652241A1 Downhole completion
10/23/2013	EP2652240A1 An inflow assembly
10/23/2013	CN203248119U Lifting-hanging type oil pipe oil drain device
10/23/2013	CN203248118U Layering acidification throttle device
10/23/2013	CN203248117U Drilling water stopping device and drilling system
10/23/2013	CN203248116U Floating-seal-type gate valve applied to drill pipe and drilling device
10/23/2013	CN203248115U Reverse-Z-shaped opened pressing ring in test valve
10/23/2013	CN103362483A Horizontal well gravel-packed string and pressure control valves thereof
10/23/2013	CN103362475A Anti-theft airtight quick sampling valve
10/23/2013	CN103362474A High-pressure cleanable check valve
10/22/2013	US8561704 Flow energy dissipation for downhole injection flow control devices
10/22/2013	US8561703 Compliant dart-style reverse-flow check valve
10/17/2013	WO2013155343A1 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus
10/17/2013	WO2013155257A2 A downhole tool for use in a drill string
10/17/2013	WO2013154682A1 Adjustable flow control device
10/17/2013	WO2013017859A3 A downhole device for data acquisition during hydraulic fracturing operation and method thereof
10/17/2013	WO2012149426A3 Annular pressure release sub
10/17/2013	WO2012129016A3 Sliding stage cementing tool
10/17/2013	US20130269951 Apparatus and Method to Remotely Control Fluid Flow in Tubular Strings and Wellbore Annulus
10/17/2013	US20130269950 Method of simultaneously stimulating multiple zones of a formation using flow rate restrictors
10/17/2013	US20130269928 Downhole tool for use in a drill string
10/16/2013	CN203239340U Needle-tube-type freeze-proof sampling valve
10/16/2013	CN203239324U Anti-freezing pressure gage sampling valve
10/16/2013	CN203239307U Impulse type steam distributing tubular column
10/16/2013	CN203239288U High-pressure gas lift valve capable of being thrown and pulled
10/16/2013	CN203239287U Steam distributing valve and subdivision steam injection process pipe column
10/16/2013	CN203239286U Impulse type steam distributing valve
10/16/2013	CN203239285U Safety valve
10/16/2013	CN203239284U Synchronous separated mining reversing valve
10/16/2013	CN203239283U Vent valve of oil well casing
10/16/2013	CN203239282U Gas recovery wellhead main passage valve device capable of being replaced under pressure
10/16/2013	CN203239281U Anti-freezing anti-theft sampling valve
10/16/2013	CN203239280U Anti-theft anti-freezing sampling valve
10/16/2013	CN203239279U Key-needle-tube-type antitheft freeze-proof sampling valve
10/16/2013	CN101688441B Producing resources using heated fluid injection
10/15/2013	US8555988 Low equivalent circulation density setting tool
10/15/2013	US8555983 Apparatus and method for activating and deactivating a downhole tool
10/15/2013	US8555960 Pressure actuated ported sub for subterranean cement completions
10/15/2013	US8555956 Linear induction motor-operated downhole tool
10/10/2013	WO2013151686A2 System and method for reservoir pressure data analysis
10/10/2013	WO2013151658A1 Well tools selectively responsive to magnetic patterns
10/10/2013	WO2013151534A1 Downhole circulating valve having a metal-to-metal seal and method for operating same
10/10/2013	WO2013150304A2 Wellbore completion
10/10/2013	WO2013150283A2 Fluid vent assembly and method of venting fluid
10/10/2013	WO2013150280A2 Downhole actuator
10/10/2013	WO2012160377A3 Improved flow control system
10/10/2013	US20130264069 Pump-through fluid loss control device
10/10/2013	US20130264068 Reverse cementing valve
10/10/2013	US20130264066 Hybrid fluid lift valve for commingling gas production
10/10/2013	US20130264063 Downhole completion
10/10/2013	US20130264062 Protection of a safety valve in a subterranean well
10/10/2013	CA2773407A1 Hybrid fluid lift valve for commingling gas production
10/09/2013	CN203230395U Intelligent downhole throttle device
10/09/2013	CN203230386U Outer sliding sleeve type oil drain device
10/09/2013	CN203230385U Dual valve device of external casing packer
10/09/2013	CN203230384U Double-ball downhole shut-in device
10/09/2013	CN203230383U Multifunctional rotating adjusting type oil nozzle valve device
10/09/2013	CN203230382U Adjustable disc oil nipple valve
10/09/2013	CN203230381U Automatic oil well exhaust valve and gas purifying device
10/09/2013	CN203230380U Multifunctional hydraulic flat valve for drilling machine under pressure
10/09/2013	CN203230379U Self-reset splash-proof device of kelly bar
10/09/2013	CN203230378U Valve handle anti-theft device for oil and gas fields
10/09/2013	CN203230370U Three-position multifunctional three-tube wellhead device
10/09/2013	CN103348096A Segmented collapsible ball seat allowing ball recovery
10/09/2013	CN102084084B Choke trim assembly
10/08/2013	US8550176 Wellbore bypass tool and related methods of use
10/08/2013	US8550172 Plural barrier valve system with wet connect
10/08/2013	US8550166 Self-adjusting in-flow control device
10/04/2013	CA2775330A1 Reverse cementing valve
10/03/2013	WO2013148015A1 Barrier valve system and method of closing same by withdrawing upper completion
10/03/2013	WO2013148007A2 Activation-indicating wellbore stimulation assemblies and methods of using the same
10/03/2013	WO2013147638A1 Manometer needle valve
10/03/2013	US20130255962 Downhole Circulating Valve Having a Metal-To-Metal Seal and Method for Operating Same
10/03/2013	US20130255961 Method and system for running barrier valve on production string
10/03/2013	US20130255960 Method and apparatus for autonomous downhole fluid selection with pathway dependent resistance system
10/03/2013	US20130255958 Retrofit barrier valve system
10/03/2013	US20130255946 Method for single trip fluid isolation
10/03/2013	US20130255938 Activation-Indicating Wellbore Stimulation Assemblies and Methods of Using the Same
10/03/2013	US20130255934 Downhole Circulating Valve Having a Metal-To-Metal Seal
10/02/2013	EP2643549A1 Valve apparatus
10/02/2013	EP2643548A2 Eccentric safety valve
10/02/2013	EP2643544A1 Downhole punch component
10/02/2013	CN203223207U Gas-liquid joint control subsurface safety valve device
10/02/2013	CN203223206U Combined valve body
10/02/2013	CN103334733A Sliding sleeve for fast fracturing
10/02/2013	CN103334731A Multi-stage fracturing sliding sleeve preventing halfway unlocking
10/02/2013	CN103334715A Casing valve for use in unbalanced drilling
10/01/2013	US8544554 Restricting production of gas or gas condensate into a wellbore
10/01/2013	US8544553 Sealing apparatus and method for a downhole tool
10/01/2013	US8544552 System for pulse-injecting fluid into a borehole
10/01/2013	US8544551 Methods and devices for isolating wellhead pressure
10/01/2013	US8544549 Downhole deployment valves

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