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Production of coal-bed methane
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E21B43/006
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Mining
E21B
EARTH DRILLING
E21B43/00
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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E21B43/006
Production of coal-bed methane
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Patents Grants
last 30 patents
Information
Patent Grant
Cracking permeability increasing method combining hydraulic fractur...
Patent number
12,078,034
Issue date
Sep 3, 2024
China University of Mining and Technology
Wei Yang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Continuous circulating concentric casing managed equivalent circula...
Patent number
12,006,799
Issue date
Jun 11, 2024
Robert Gardes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrogen production, storage and recovery
Patent number
11,959,364
Issue date
Apr 16, 2024
TERRAH2 LLC
Eva Vinegar
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydrogen storage and recovery with fracture monitoring
Patent number
11,680,466
Issue date
Jun 20, 2023
TERRAH2 LLC
Eva Vinegar
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Multi-level cross mining areas surface well pattern deployment method
Patent number
11,649,701
Issue date
May 16, 2023
Taiyuan University of Technology
Zhen Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Stimulation and continuous recovery of biogenic gas from coal beds
Patent number
11,598,194
Issue date
Mar 7, 2023
Michael S. Perry
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Hybrid power generation system combines renewable energy with direc...
Patent number
11,588,332
Issue date
Feb 21, 2023
GLENROCK VENTURES II, LLC
Ari Mark Bernstein
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Underground coal gasification and associated systems and methods
Patent number
11,441,408
Issue date
Sep 13, 2022
Ergo Exergy Technologies Inc.
Mikhail Blinderman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Full-length screen pipe hole protection device and method with pres...
Patent number
11,396,810
Issue date
Jul 26, 2022
Shandong University of Science and Technology
Guanhua Ni
E21 - EARTH DRILLING MINING
Information
Patent Grant
Fracturing device for extraction of coalbed methane in low permeabi...
Patent number
11,242,736
Issue date
Feb 8, 2022
China University of Geosciences (Beijing)
Shu Tao
E21 - EARTH DRILLING MINING
Information
Patent Grant
Continuous circulating concentric casing managed equivalent circula...
Patent number
11,203,921
Issue date
Dec 21, 2021
Robert Gardes
E21 - EARTH DRILLING MINING
Information
Patent Grant
Steeply-inclined ultra-thick coal seam gas control method based on...
Patent number
11,149,527
Issue date
Oct 19, 2021
Shandong University of Science and Technology
Gang Wang
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for extracting gas by fracturing coal seam through combinati...
Patent number
11,131,172
Issue date
Sep 28, 2021
China University of Mining and Technology
Baiquan Lin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Underground coal gasification and associated systems and methods
Patent number
11,125,069
Issue date
Sep 21, 2021
Ergo Exergy Technologies Inc.
Mikhail Blinderman
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure oscillation simulation device of deep coalbed methane and...
Patent number
11,120,710
Issue date
Sep 14, 2021
SOUTHWEST PETROLEUM UNIVERSITY
Xiangchen Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for precisely extracting coal-mine gas
Patent number
11,060,384
Issue date
Jul 13, 2021
China University of Mining and Technology
Chuanjie Zhu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Machine learning for production prediction
Patent number
11,053,789
Issue date
Jul 6, 2021
Schlumberger Technology Corporation
Gabriel Maher
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Modeling method for gas production of CBM reservoir rocks
Patent number
11,008,837
Issue date
May 18, 2021
Korea Gas Corporation
Kihong Kim
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for analyzing coalbed methane geological selection of multi-...
Patent number
11,008,859
Issue date
May 18, 2021
China University of Mining and Technology
Caifang Wu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of extracting coal bed methane using carbon dioxide
Patent number
10,968,725
Issue date
Apr 6, 2021
1304338 Alberta Ltd.
Jose Lourenco
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Device and method for water drainage and gas production by pressure...
Patent number
10,883,350
Issue date
Jan 5, 2021
Maohe Shen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Permeability enhancement method for coalbed methane wells by using...
Patent number
10,858,913
Issue date
Dec 8, 2020
China University of Mining and Technology
Bai quan Lin
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for dewatering and operating coal seam gas wells
Patent number
10,738,586
Issue date
Aug 11, 2020
The University of Queensland
Victor Rudolph
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Exploitation method and exploitation well pattern for coalbed metha...
Patent number
10,731,451
Issue date
Aug 4, 2020
PetroChina Company Limited
Yonggui Mei
E21 - EARTH DRILLING MINING
Information
Patent Grant
Coal seam gas production determination
Patent number
10,683,749
Issue date
Jun 16, 2020
Gas Sensing Technology Corp.
John Pope
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for removing gas from gas producing formations
Patent number
10,633,963
Issue date
Apr 28, 2020
Michael S. Perry
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for hydraulic communication with target well from relief well
Patent number
10,487,644
Issue date
Nov 26, 2019
Halliburton Energy Services, Inc.
Joe E. Hess
E21 - EARTH DRILLING MINING
Information
Patent Grant
Continuous circulating concentric casing managed equivalent circula...
Patent number
10,480,292
Issue date
Nov 19, 2019
Robert Gardes
E21 - EARTH DRILLING MINING
Information
Patent Grant
System and methods for controlled fracturing in formations
Patent number
10,400,568
Issue date
Sep 3, 2019
Chevron U.S.A. Inc.
Raymond Stanley Kasevich
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process of sustaining methane production in a subterranean carbonac...
Patent number
10,378,319
Issue date
Aug 13, 2019
Commonwealth Scientific and Industrial Research Organisation
David Lambourne
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Method for determining recovery factor of deep coal bed methane wells
Publication number
20240426210
Publication date
Dec 26, 2024
Exploration & Production Research Institute of SINOPEC North-China OIL & Gas...
Bo Hu
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining production shares of free gas and adsorbed g...
Publication number
20240410277
Publication date
Dec 12, 2024
Exploration & Production Research Institute of SINOPEC North-China OIL & Gas...
Bo Hu
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining adsorbed gas content during production proce...
Publication number
20240271524
Publication date
Aug 15, 2024
Exploration & Production Research Institute of SINOPEC North-China Oil & Glas...
Bo Hu
G01 - MEASURING TESTING
Information
Patent Application
Modeling Gas Desorption in a Subsurface Reservoir
Publication number
20240272057
Publication date
Aug 15, 2024
Saudi Arabian Oil Company
Moemen A. Abdelrahman
G01 - MEASURING TESTING
Information
Patent Application
CRACKING PERMEABILITY INCREASING METHOD COMBINING HYDRAULIC FRACTUR...
Publication number
20240110465
Publication date
Apr 4, 2024
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
WEI YANG
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for determining productivity of coalbed methane well without...
Publication number
20240093604
Publication date
Mar 21, 2024
Exploration & Production Research Institute of SINOPEC North-China OIL & Gas...
Bo Hu
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD AND APPARATUS FOR ASSISTING IN EXTRACTION OF FLUID FROM COAL...
Publication number
20230349237
Publication date
Nov 2, 2023
CFT Technologies Pty Ltd
Rodney Michael BRESNEHAN
E21 - EARTH DRILLING MINING
Information
Patent Application
COAL BED METHANE EXTRACTION AND UNDERGROUND CO2 STORAGE SYSTEM AND...
Publication number
20230235648
Publication date
Jul 27, 2023
EQT Corporation
Robert R. WINGO
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR DETERMINING SECONDARY RESERVOIR FORMATION BOUNDARIES AND...
Publication number
20230167718
Publication date
Jun 1, 2023
Hancheng Zaozhuang Industrial Co., Ltd.
Xiaoyan SUN
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDROGEN PRODUCTION, STORAGE AND RECOVERY
Publication number
20230167719
Publication date
Jun 1, 2023
TerraH2 LLC
Eva VINEGAR
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDROGEN PRODUCTION, STORAGE AND RECOVERY
Publication number
20230167720
Publication date
Jun 1, 2023
TerraH2 LLC
Eva VINEGAR
E21 - EARTH DRILLING MINING
Information
Patent Application
HYDROGEN PRODUCTION, STORAGE AND RECOVERY
Publication number
20230160284
Publication date
May 25, 2023
TerraH2 LLC
Eva VINEGAR
E21 - EARTH DRILLING MINING
Information
Patent Application
INTEGRATED METHOD AND STRUCTURE FOR IN-SITU HYDROGEN PRODUCTION FRO...
Publication number
20230126834
Publication date
Apr 27, 2023
SOUTHWEST PETROLEUM UNIVERSITY
CHAOWEN WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND SYSTEMS FOR GREENHOUSE GAS CAPTURE AND SEQUESTRATION
Publication number
20220381122
Publication date
Dec 1, 2022
CARBON GEOCYCLE, INC.
John POPE
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND COAL GASIFICATION AND ASSOCIATED SYSTEMS AND METHODS
Publication number
20220372859
Publication date
Nov 24, 2022
Ergo Exergy Technologies Inc.
Mikhail BLINDERMAN
E21 - EARTH DRILLING MINING
Information
Patent Application
MULTI-LEVEL CROSS MINING AREAS SURFACE WELL PATTERN DEPLOYMENT METHOD
Publication number
20220251956
Publication date
Aug 11, 2022
TAIYUAN UNIVERSITY OF TECHNOLOGY
Zhen LI
E21 - EARTH DRILLING MINING
Information
Patent Application
UNDERGROUND COAL GASIFICATION AND ASSOCIATED SYSTEMS AND METHODS
Publication number
20220228471
Publication date
Jul 21, 2022
Ergo Exergy Technologies Inc.
Mikhail BLINDERMAN
E21 - EARTH DRILLING MINING
Information
Patent Application
FULL-LENGTH SCREEN PIPE HOLE PROTECTION DEVICE AND METHOD WITH PRES...
Publication number
20220205361
Publication date
Jun 30, 2022
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Guanhua NI
E21 - EARTH DRILLING MINING
Information
Patent Application
Continuous Circulating Concentric Casing Managed Equivalent Circula...
Publication number
20220170347
Publication date
Jun 2, 2022
Robert Gardes
E21 - EARTH DRILLING MINING
Information
Patent Application
Novel Protein Hydrolysate Composition that Increases Coalbed Methan...
Publication number
20220112423
Publication date
Apr 14, 2022
Bomi Patel-Framroze
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Hybrid Power Generation System Combines Renewable Energy With Direc...
Publication number
20220045518
Publication date
Feb 10, 2022
Glenrock Ventures II, LLC
Ari Mark BERNSTEIN
E21 - EARTH DRILLING MINING
Information
Patent Application
STEEPLY-INCLINED ULTRA-THICK COAL SEAM GAS CONTROL METHOD BASED ON...
Publication number
20210246767
Publication date
Aug 12, 2021
Gang WANG
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR EXTRACTING GAS BY FRACTURING COAL SEAM THROUGH COMBINATI...
Publication number
20210148205
Publication date
May 20, 2021
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Baiquan LIN
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR PRECISELY EXTRACTING COAL-MINE GAS
Publication number
20210040822
Publication date
Feb 11, 2021
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Chuanjie ZHU
E21 - EARTH DRILLING MINING
Information
Patent Application
Continuous Circulating Concentric Casing Managed Equivalent Circula...
Publication number
20200325756
Publication date
Oct 15, 2020
Robert Gardes
E21 - EARTH DRILLING MINING
Information
Patent Application
PERMEABILITY ENHANCEMENT METHOD FOR COALBED METHANE WELLS BY USING...
Publication number
20200240246
Publication date
Jul 30, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Bai quan LIN
E21 - EARTH DRILLING MINING
Information
Patent Application
BLOCKAGE REMOVAL AND PERMEABILITY ENHANCEMENT METHOD FOR COALBED ME...
Publication number
20200240245
Publication date
Jul 30, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Bai quan LIN
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR ANALYZING COALBED METHANE GEOLOGICAL SELECTION OF MULTI-...
Publication number
20200131902
Publication date
Apr 30, 2020
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Caifang WU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
EXPLOITATION METHOD AND EXPLOITATION WELL PATTERN FOR COALBED METHA...
Publication number
20190186252
Publication date
Jun 20, 2019
Petrochina Company Limited
Yonggui Mei
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD OF EXTRACTING COAL BED METHANE USING CARBON DIOXIDE
Publication number
20190040720
Publication date
Feb 7, 2019
1304342 Alberta Ltd.
Jose Lourenco
E21 - EARTH DRILLING MINING