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Valve arrangements in drilling fluid circulation systems
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CPC
E21B21/10
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FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B21/00
Methods or apparatus for flushing boreholes
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E21B21/10
Valve arrangements in drilling fluid circulation systems
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Patents Grants
last 30 patents
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
Information
Patent Grant
Blowout preventer assembly
Patent number
12,152,447
Issue date
Nov 26, 2024
Mike Trosper
E21 - EARTH DRILLING MINING
Information
Patent Grant
Active intelligent wellbore pressure control system
Patent number
12,146,374
Issue date
Nov 19, 2024
SOUTHWEST PETROLEUM UNIVERSITY
Hongtao Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Desander assembly for plunger lift system
Patent number
12,140,012
Issue date
Nov 12, 2024
Daniel J. Snyder
E21 - EARTH DRILLING MINING
Information
Patent Grant
Kelly valve
Patent number
12,134,943
Issue date
Nov 5, 2024
M&M INTERNATIONAL, LLC
Tripp Cappel Staples
E21 - EARTH DRILLING MINING
Information
Patent Grant
Turbulence reducing downhole apparatus
Patent number
12,110,748
Issue date
Oct 8, 2024
DRILLING TOOLS INTERNATIONAL, INC.
David Barker
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure management device for drilling system
Patent number
12,091,934
Issue date
Sep 17, 2024
Opla Energy Ltd.
Vitaliy Shpak
E21 - EARTH DRILLING MINING
Information
Patent Grant
Resettable pressure relief valve system and method for use when dri...
Patent number
12,084,929
Issue date
Sep 10, 2024
Pruitt Tool & Supply Co.
Martyn Parker
E21 - EARTH DRILLING MINING
Information
Patent Grant
Generating pressure waves in a flowline or a wellbore
Patent number
12,071,822
Issue date
Aug 27, 2024
Halliburton Energy Services, Inc.
David Bennett
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fully integrated flow control module
Patent number
12,065,904
Issue date
Aug 20, 2024
Baker Hughes Energy Technology UK Limited
Scott Macdonald
E21 - EARTH DRILLING MINING
Information
Patent Grant
Return exhaust assembly for a reverse circulation hammer
Patent number
12,055,016
Issue date
Aug 6, 2024
IGNIS TECHNOLOGIES PTY LTD
Peter Warwick Boswell
E21 - EARTH DRILLING MINING
Information
Patent Grant
Straddle packer testing system
Patent number
12,049,821
Issue date
Jul 30, 2024
Saudi Arabian Oil Company
Krzysztof Karol Machocki
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automatic choking hydraulic shock reduction valve
Patent number
12,031,403
Issue date
Jul 9, 2024
Hydril USA Distribution LLC
Alexander McAuley
E21 - EARTH DRILLING MINING
Information
Patent Grant
Self-cleaning filter sub and methods of use
Patent number
12,031,398
Issue date
Jul 9, 2024
Saudi Arabian Oil Company
Atallah N. Alharbi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic trigger for isolation valves
Patent number
12,025,238
Issue date
Jul 2, 2024
Schlumberger Technology Corporation
Bo Chen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Operation of a recirculation circuit for a fluid pump of a hydrauli...
Patent number
12,024,962
Issue date
Jul 2, 2024
Caterpillar Inc.
Shawn M. Damm
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sand flushing above blanking plug
Patent number
12,018,537
Issue date
Jun 25, 2024
Saudi Arabian Oil Company
Hussain Al Majid
E21 - EARTH DRILLING MINING
Information
Patent Grant
Dual flow converted auto-fill float valve
Patent number
12,012,812
Issue date
Jun 18, 2024
DOWNHOLE PRODUCTS LIMITED
Darko Arsoski
E21 - EARTH DRILLING MINING
Information
Patent Grant
System and method for reducing gas break out in MPD metering with b...
Patent number
12,007,264
Issue date
Jun 11, 2024
Pruitt Tool & Supply Co.
Martyn Parker
G01 - MEASURING TESTING
Information
Patent Grant
Float valve assembly for drilling and workover operations
Patent number
12,006,789
Issue date
Jun 11, 2024
Saudi Arabian Oil Company
Naif Mohsen Mosleh Alharbi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Gas lift valve
Patent number
12,000,248
Issue date
Jun 4, 2024
Petroleum Technology Company AS
Kristian Harestad
E21 - EARTH DRILLING MINING
Information
Patent Grant
Flow diversion valve for downtool tool assembly
Patent number
12,000,228
Issue date
Jun 4, 2024
Wellbore Integrity Solutions LLC
David A. Stokes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure compensation device with accumulator group for controlled...
Patent number
12,000,222
Issue date
Jun 4, 2024
CNPC BOHAI DRILING ENGINEERING COMPANY LIMITED
Jinshan Ma
G05 - CONTROLLING REGULATING
Information
Patent Grant
Removably mounted actuator assembly
Patent number
12,000,501
Issue date
Jun 4, 2024
M & M Oil Tools, LLC
Andy Paul Todd
E21 - EARTH DRILLING MINING
Information
Patent Grant
Managed pressure drilling control system with continuously variable...
Patent number
11,988,064
Issue date
May 21, 2024
Weatherford Technology Holdings, LLC
Paul R. Northam
E21 - EARTH DRILLING MINING
Information
Patent Grant
Selectively bypassing float collar
Patent number
11,988,053
Issue date
May 21, 2024
Saudi Arabian Oil Company
Peter Ido Egbe
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drape hose quick connect for managed pressure drilling
Patent number
11,982,134
Issue date
May 14, 2024
Schlumberger Technology Corporation
Harold Tenorio
E21 - EARTH DRILLING MINING
Information
Patent Grant
Jet flow adjustment method for rotary steerable downhole release
Patent number
11,982,146
Issue date
May 14, 2024
China National Petroleum Corporation
Jichuan Zhang
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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
Information
Patent Application
GENERATING PRESSURE WAVES IN A FLOWLINE OR A WELLBORE
Publication number
20240052714
Publication date
Feb 15, 2024
Halliburton Energy Services, Inc.
David Bennett
E21 - EARTH DRILLING MINING
Information
Patent Application
FRICTION REDUCTION ASSEMBLY
Publication number
20240035348
Publication date
Feb 1, 2024
IMPULSE DOWNHOLE SOLUTIONS LTD.
Douglas KINSELLA
E21 - EARTH DRILLING MINING
Information
Patent Application
AUTOMATED DRILLING-FLUID ADDITIVE SYSTEM AND METHOD
Publication number
20240018836
Publication date
Jan 18, 2024
Kyle Collins
E21 - EARTH DRILLING MINING
Information
Patent Application
RECONFIGURABLE FLOW IN DRILLING AND MEASUREMENTS TOOLS
Publication number
20230417127
Publication date
Dec 28, 2023
SCHLUMBERGER TECHNOLOGY CORPORATION
Harmel Defretin
E21 - EARTH DRILLING MINING
Information
Patent Application
CIRCULATING VALVE AND ASSOCIATED SYSTEM AND METHOD
Publication number
20230349247
Publication date
Nov 2, 2023
THRU TUBING SOLUTIONS, INC.
Brock W. WATSON
E21 - EARTH DRILLING MINING
Information
Patent Application
SAND FLUSHING ABOVE BLANKING PLUG
Publication number
20230313624
Publication date
Oct 5, 2023
Saudi Arabian Oil Company
Hussain Al Majid
E21 - EARTH DRILLING MINING
Information
Patent Application
FLOAT VALVE ASSEMBLY FOR DRILLING AND WORKOVER OPERATIONS
Publication number
20230279738
Publication date
Sep 7, 2023
Saudi Arabian Oil Company
Naif Mohsen Mosleh Alharbi
E21 - EARTH DRILLING MINING
Information
Patent Application
Managed Pressure Drilling Manifold and Methods
Publication number
20230272683
Publication date
Aug 31, 2023
Opla Energy Ltd.
Hossein KHORSHIDIAN
E21 - EARTH DRILLING MINING
Information
Patent Application
DRAPE HOSE QUICK CONNECT FOR MANAGED PRESSURE DRILLING
Publication number
20230265725
Publication date
Aug 24, 2023
SCHLUMBERGER TECHNOLOGY CORPORATION
Harold TENORIO
E21 - EARTH DRILLING MINING
Information
Patent Application
Removably Mounted Actuator Assembly
Publication number
20230265941
Publication date
Aug 24, 2023
M & M Oil Tools, LLC
Andy Paul Todd
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEMS AND METHODS FOR WELLBORE LINER INSTALLATION UNDER MANAGED P...
Publication number
20230258057
Publication date
Aug 17, 2023
BP CORPORATION NORTH AMERICA INC.
Jeffrey SMITH
E21 - EARTH DRILLING MINING
Information
Patent Application
DESANDER ASSEMBLY FOR PLUNGER LIFT SYSTEM
Publication number
20230250716
Publication date
Aug 10, 2023
Daniel J. Snyder
E21 - EARTH DRILLING MINING
Information
Patent Application
ACTIVE INTELLIGENT WELLBORE PRESSURE CONTROL SYSTEM
Publication number
20230235636
Publication date
Jul 27, 2023
SOUTHWEST PETROLEUM UNIVERSITY
Hongtao LI
E21 - EARTH DRILLING MINING