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Valve arrangements in drilling fluid circulation systems
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CPC
E21B21/10
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E
FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B21/00
Methods or apparatus for flushing boreholes
Current Industry
E21B21/10
Valve arrangements in drilling fluid circulation systems
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Patents Grants
last 30 patents
Information
Patent Grant
Automated drilling-fluid additive system and method
Patent number
12,366,128
Issue date
Jul 22, 2025
Kyle Collins
E21 - EARTH DRILLING MINING
Information
Patent Grant
Extended reach tool for a bottom hole assembly
Patent number
12,366,131
Issue date
Jul 22, 2025
KLX Energy Services LLC
Ryan Nyberg
E21 - EARTH DRILLING MINING
Information
Patent Grant
Reconfigurable flow in drilling and measurements tools
Patent number
12,366,137
Issue date
Jul 22, 2025
Schlumberger Technology Corporation
Harmel Defretin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Valve cartridge
Patent number
12,359,517
Issue date
Jul 15, 2025
SPM Oil & Gas Inc.
Daryl James Belshan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Desander assembly for plunger lift system
Patent number
12,359,550
Issue date
Jul 15, 2025
Daniel J. Snyder
E21 - EARTH DRILLING MINING
Information
Patent Grant
Managed pressure drilling manifold and methods
Patent number
12,352,119
Issue date
Jul 8, 2025
Opla Energy Ltd.
Hossein Khorshidian
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and system for maintaining constant back pressure during man...
Patent number
12,345,108
Issue date
Jul 1, 2025
Pruitt Tool & Supply Co.
Martyn Parker
E21 - EARTH DRILLING MINING
Information
Patent Grant
Choke system with capacity for passage of large debris
Patent number
12,338,708
Issue date
Jun 24, 2025
SRI ENERGY, INC.
Alagarsamy Sundararajan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Well-killing system for ultra-deep well drilling with co-existence...
Patent number
12,331,602
Issue date
Jun 17, 2025
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Bangtang Yin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wireless remote control method and system for controllable rotary s...
Patent number
12,312,934
Issue date
May 27, 2025
CHENGDU UNIVERSITY OF TECHNOLOGY
Jianguo Zhao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole method and associated apparatus
Patent number
12,312,912
Issue date
May 27, 2025
Hydropulsion Limited
Brian Storie
E21 - EARTH DRILLING MINING
Information
Patent Grant
Modular managed pressure drilling choke system
Patent number
12,297,704
Issue date
May 13, 2025
Pruitt Tool & Supply Co.
Martyn Parker
G05 - CONTROLLING REGULATING
Information
Patent Grant
Hydraulic trigger for isolation valves
Patent number
12,297,929
Issue date
May 13, 2025
Schlumberger Technology Corporation
Bo Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Friction reduction assembly
Patent number
12,297,708
Issue date
May 13, 2025
IMPULSE DOWNHOLE SOLUTIONS LTD.
Douglas Kinsella
E21 - EARTH DRILLING MINING
Information
Patent Grant
Float valve apparatus having metal-to-metal seals and method for us...
Patent number
12,291,940
Issue date
May 6, 2025
BL Sales & Management, Inc.
Robert J. Lejeune
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling head assembly with latching system and fluid retention mec...
Patent number
12,286,849
Issue date
Apr 29, 2025
Joshua Grant Turner
E21 - EARTH DRILLING MINING
Information
Patent Grant
Electromagnetic reversal downhole pressure intensifier
Patent number
12,276,191
Issue date
Apr 15, 2025
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Hualin Liao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Float equipment for use with composite casing or liner string
Patent number
12,270,262
Issue date
Apr 8, 2025
DOWNHOLE PRODUCTS LIMITED
Alexander Craig Mackay
E21 - EARTH DRILLING MINING
Information
Patent Grant
Lost circulation material tool
Patent number
12,270,268
Issue date
Apr 8, 2025
Saudi Arabian Oil Company
Bandar S. Al-Malki
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for automatic drill out
Patent number
12,252,943
Issue date
Mar 18, 2025
Tetra Technologies, Inc.
Virgilio Garcia Soule
E21 - EARTH DRILLING MINING
Information
Patent Grant
High temperature fluid-driven dual-mode circulation tool
Patent number
12,252,944
Issue date
Mar 18, 2025
PROSHALE LLC
Martin Mauro Nebiolo
E21 - EARTH DRILLING MINING
Information
Patent Grant
Differential pressure activated inflow control device (ICD) install...
Patent number
12,234,720
Issue date
Feb 25, 2025
Saudi Arabian Oil Company
Mubarak A. Muraikhi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure release during drilling
Patent number
12,196,049
Issue date
Jan 14, 2025
ConocoPhillips Company
Gunvald Nesheim
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods for wellbore liner installation under managed p...
Patent number
12,188,336
Issue date
Jan 7, 2025
BP Corporation North America Inc.
Jeffrey Smith
E21 - EARTH DRILLING MINING
Information
Patent Grant
Circulating valve and associated system and method
Patent number
12,180,792
Issue date
Dec 31, 2024
Thru Tubing Solutions, Inc.
Brock W. Watson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Debris catch for managed pressure drilling
Patent number
12,173,568
Issue date
Dec 24, 2024
Pruitt Tool & Supply Co.
Benjamin Micah Spahn
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pulsed power drilling with multiple selective drilling fluids
Patent number
12,173,605
Issue date
Dec 24, 2024
Halliburton Energy Services, Inc.
Daniel D. Gleitman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Stall detection and recovery for mud motors
Patent number
12,168,924
Issue date
Dec 17, 2024
Helmerich & Payne, Inc.
Fergus Hopwood
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for downhole in-situ mixing using dual, concen...
Patent number
12,163,385
Issue date
Dec 10, 2024
Saudi Arabian Oil Company
Amjad Shaarawi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling mud screen system and methods thereof
Patent number
12,163,388
Issue date
Dec 10, 2024
Black Diamond Oilfield Rentals LLC
Christopher M. Biggerstaff
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR PNEUMATIC SOURCE SELECTION
Publication number
20250137349
Publication date
May 1, 2025
Tally Productions Systems, LLC
Robert G. Roycroft
E21 - EARTH DRILLING MINING
Information
Patent Application
ROTATIONAL FLOW TRIM FOR A FLOW CONTROL VALVE
Publication number
20250129688
Publication date
Apr 24, 2025
Halliburton Energy Services, Inc.
Matthew S. GRAY
E21 - EARTH DRILLING MINING
Information
Patent Application
DESANDER ASSEMBLY FOR PLUNGER LIFT SYSTEM
Publication number
20250122792
Publication date
Apr 17, 2025
Daniel J. Snyder
E21 - EARTH DRILLING MINING
Information
Patent Application
WELL-KILLING SYSTEM FOR ULTRA-DEEP WELL DRILLING WITH CO-EXISTENCE...
Publication number
20250116163
Publication date
Apr 10, 2025
China University of Petroleum (East China)
Bangtang YIN
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR CONTAINMENT OF FLOWBACK FLUIDS OF WELLBORE
Publication number
20250101820
Publication date
Mar 27, 2025
RAFA Gulf Contracting Company
Majed Faiz ALAHMARI
E21 - EARTH DRILLING MINING
Information
Patent Application
APPARATUS FOR CONTROLLING A DOWNHOLE DEVICE
Publication number
20250101825
Publication date
Mar 27, 2025
NXG TECHNOLOGIES LIMITED
Colin MACKIE
E21 - EARTH DRILLING MINING
Information
Patent Application
PULSED POWER DRILLING WITH MULTIPLE SELECTIVE DRILLING FLUIDS
Publication number
20250101808
Publication date
Mar 27, 2025
Halliburton Energy Services, Inc.
Daniel D. Gleitman
E21 - EARTH DRILLING MINING
Information
Patent Application
COILED TUBING CONVEYED ELECTRICAL ORIENTER
Publication number
20250101810
Publication date
Mar 27, 2025
THRU TUBING SOLUTIONS, INC.
Nigel ROWCLIFFE
E21 - EARTH DRILLING MINING
Information
Patent Application
STALL DETECTION AND RECOVERY FOR MUD MOTORS
Publication number
20250059876
Publication date
Feb 20, 2025
Helmerich & Payne, Inc.
Fergus Hopwood
E21 - EARTH DRILLING MINING
Information
Patent Application
ELECTROMAGNETIC REVERSAL DOWNHOLE PRESSURE INTENSIFIER
Publication number
20250043635
Publication date
Feb 6, 2025
China University of Petroleum (East China)
Hualin LIAO
E21 - EARTH DRILLING MINING
Information
Patent Application
Flow Control Choke With Wear Decoupling
Publication number
20250012154
Publication date
Jan 9, 2025
Halliburton Energy Services, Inc.
Hasib Uddin
E21 - EARTH DRILLING MINING
Information
Patent Application
VALVE CARTRIDGE
Publication number
20250003300
Publication date
Jan 2, 2025
SPM OIL & GAS INC.
Daryl James Belshan
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND APPARATUS FOR DOWNHOLE IN-SITU MIXING USING DUAL, CONCEN...
Publication number
20240426181
Publication date
Dec 26, 2024
Saudi Arabian Oil Company
Amjad Shaarawi
E21 - EARTH DRILLING MINING
Information
Patent Application
PRESSURE MANAGEMENT DEVICE FOR DRILLING SYSTEM
Publication number
20240410250
Publication date
Dec 12, 2024
Opla Energy Ltd.
Vitaliy SHPAK
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEMS AND METHODS FOR CONDITION MONITORING OF TOP DRIVE INTERNAL...
Publication number
20240401435
Publication date
Dec 5, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Raymond Netecke
E21 - EARTH DRILLING MINING
Information
Patent Application
RETURN EXHAUST ASSEMBLY FOR A REVERSE CIRCULATION HAMMER
Publication number
20240352796
Publication date
Oct 24, 2024
IGNIS TECHNOLOGIES PTY LTD
Peter Warwick BOSWELL
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDRAULIC TRIGGER FOR ISOLATION VALVES
Publication number
20240353023
Publication date
Oct 24, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Bo Chen
E21 - EARTH DRILLING MINING
Information
Patent Application
TURBULENCE REDUCING DOWNHOLE APPARATUS
Publication number
20240337166
Publication date
Oct 10, 2024
DRILLING TOOLS INTERNATIONAL, INC.
DAVID BARKER
E21 - EARTH DRILLING MINING
Information
Patent Application
FLUID OPERATED MOTOR FOR RUNNING CASING WITH BYPASS FOR PUMPING LOS...
Publication number
20240328260
Publication date
Oct 3, 2024
Deep Casing Tools Limited
Rafael Villa de Santana
E21 - EARTH DRILLING MINING
Information
Patent Application
DIFFERENTIAL PRESSURE ACTIVATED INFLOW CONTROL DEVICE (ICD) INSTALL...
Publication number
20240328305
Publication date
Oct 3, 2024
Saudi Arabian Oil Company
Mubarak A. Muraikhi
E21 - EARTH DRILLING MINING
Information
Patent Application
FULLY INTEGRATED FLOW CONTROL MODULE
Publication number
20240318528
Publication date
Sep 26, 2024
BAKER HUGHES ENERGY TECHNOLOGY UK LIMITED
Scott Macdonald
E21 - EARTH DRILLING MINING
Information
Patent Application
TERMINAL MODULES FOR DOWNHOLE FORMATION TESTING TOOLS
Publication number
20240309760
Publication date
Sep 19, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Miroslav Slapal
E21 - EARTH DRILLING MINING
Information
Patent Application
DESANDER ASSEMBLY FOR PLUNGER LIFT SYSTEM
Publication number
20240280010
Publication date
Aug 22, 2024
Daniel J. Snyder
E21 - EARTH DRILLING MINING
Information
Patent Application
ROTARY STEERABLE SYSTEM
Publication number
20240263522
Publication date
Aug 8, 2024
OnTarget Drilling, LLC
Sylvain Bedouet
E21 - EARTH DRILLING MINING
Information
Patent Application
SELECTABLE HOLE TRIMMER AND METHODS THEREOF
Publication number
20240183227
Publication date
Jun 6, 2024
Black Diamond Oilfield Rentals LLC
Steven R. Radford
E21 - EARTH DRILLING MINING
Information
Patent Application
CHOKE SYSTEM WITH CAPACITY FOR PASSAGE OF LARGE DEBRIS
Publication number
20240159125
Publication date
May 16, 2024
SRI ENERGY, INC.
Alagarsamy Sundararajan
E21 - EARTH DRILLING MINING
Information
Patent Application
EMERGENCY DISCONNECT ISOLATION VALVE
Publication number
20240125201
Publication date
Apr 18, 2024
SPOKED SOLUTIONS LLC
Bryce Elliott RANDLE
E21 - EARTH DRILLING MINING
Information
Patent Application
EXTENDED REACH TOOL FOR A BOTTOM HOLE ASSEMBLY
Publication number
20240117696
Publication date
Apr 11, 2024
KLX ENERGY SERVICES LLC
Ryan Nyberg
E21 - EARTH DRILLING MINING
Information
Patent Application
CIRCULATION SUB
Publication number
20240117691
Publication date
Apr 11, 2024
Black Diamond Oilfield Rentals LLC
Christopher Biggerstaff
E21 - EARTH DRILLING MINING
Information
Patent Application
WIRELESS REMOTE CONTROL METHOD AND SYSTEM FOR CONTROLLABLE ROTARY S...
Publication number
20240093589
Publication date
Mar 21, 2024
Chengdu University of Technology
Jianguo ZHAO
E21 - EARTH DRILLING MINING