ClassID:

135656

E21B43/29 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells Obtaining a slurry of minerals, e.g. by using nozzles

Sub-classes:
Recent Application in this class:
#1
20250389180
2025-12-25

DENSITY MANIPULATION TO ACHIEVE A GRAVITY STABLE FLUID INTERFACE DURING THE RECOVERY OF SUBSURFACE BRINES

#2
20250172062
2025-05-29

COAL MINING SYSTEM AND METHOD OF DUAL CIRCULATION DRILLING WITH MECHANICAL REAMING AND ABRASIVE JET

#3
20250116161
2025-04-10

HIGH PRESSURE FLUID JET DRILL SYSTEM

#4
20250075605
2025-03-06

Fluidized coal mining method utilizing self-energy storage of coal seam

#5
20240337161
2024-10-10

METHOD AND SYSTEM FOR MINING

#6
20230220758
2023-07-13

METHODS OF INTERPRETING A PLURALITY OF TIME-SERIES DATASETS GENERATED FROM OPERATION OF HYDROCARBON WELLS

#7
20230203947
2023-06-29

Multi-energy complementary system for co-associated abandoned mine and use method

#8
20230193735
2023-06-22

Air lifting sand

#9
20230112110
2023-04-13

Method for recovering rare-earth mud, and recovery system

#10
20220154567
2022-05-19

Method and system for mining

#11
20220112802
2022-04-14

Perforation cluster design method and system based on a hybrid model to predict proppant distribution

#12
20220098965
2022-03-31

Apparatus and methods for hydrocarbon recovery

#13
20210293255
2021-09-23

Pumping system

#14
20210254445
2021-08-19

Methods for recovering a mineral from a mineral-bearing deposit

#15
20210230979
2021-07-29

Production nozzle for solvent-assisted recovery

#16
20210131255
2021-05-06

Processes and configurations for subterranean resource extraction

#17
20200340333
2020-10-29

Method of extracting gas from tectonically-deformed coal seam in-situ by depressurizing horizontal well cavity

#18
20200291754
2020-09-17

Hydrate solid-state fluidization mining method and system under underbalanced reverse circulation condition

#19
20200003039
2020-01-02

Water jet mining system and method

#20
20190338627
2019-11-07

Hydraulic hoisting of potash and other evaporite ores

#21
20190323330
2019-10-24

METHOD AND APPARATUS FOR UTILIZATION OF WATER PRODUCED FROM SUBTERRANEAN HYDROCARBON RESERVES IN MINING OF ASSOCIATED MINERAL DEPOSITS

#22
20190308204
2019-10-10

Weighted median method for PST control signal determination

#23
20190249493
2019-08-15

Method of drilling vertical and horizontal pathways to mine for solid natural resources

#24
20190017332
2019-01-17

Multi-purpose through conduit wet-mate connector and method

#25
20180371324
2018-12-27

Microorganism Mediated Liquid Fuels

#26
20180362404
2018-12-20

Cement admixture

#27
20180347333
2018-12-06

BLENDING MINED OIL SAND ORES FOR BITUMEN EXTRACTION OPERATIONS

#28
20180291710
2018-10-11

Coated Nozzle Cap/Sleeve

#29
20170241266
2017-08-24

Assessment and production of minerals by directed horizontal drilling

#30
20170089199
2017-03-30

Water jet mining system and method

#31
20160326871
2016-11-10

Surface access borehole resource extraction method

#32
20150107905
2015-04-23

HYDRAULIC BOREHOLE MINING SYSTEM AND METHOD

#33
20140332095
2014-11-13

Pump apparatus

#34
20140241803
2014-08-28

Apparatus and methods for forming and using subterranean salt cavern

#35
20140162336
2014-06-12

Microorganism mediated liquid fuels

#36
20130112399
2013-05-09

Erosion resistant flow nozzle for downhole tool

#37
20130043031
2013-02-21

Manifold string for selectivity controlling flowing fluid streams of varying velocities in wells from a single main bore

#38
20110315397
2011-12-29

PRODUCING HYDROCARBON MATERIAL FROM A LAYER OF OIL SAND

#39
20110315379
2011-12-29

PRODUCING HYDROCARBON MATERIAL FROM A LAYER OF OIL SAND

#40
20110308804
2011-12-22

Downhole mixing tool

#41
20110206459
2011-08-25

Apparatus and methods for forming and using subterranean salt cavern

#42
20110120704
2011-05-26

PRODUCING HYDROCARBON FLUID FROM A LAYER OF OIL SAND

#43
20110114311
2011-05-19

METHOD OF PRODUCING HYDROCARBON FLUID FROM A LAYER OF OIL SAND

#44
20100226837
2010-09-09

PRODUCTION OF METAL PRODUCTS DIRECTLY FROM UNDERGROUND ORE DEPOSITS

#45
20100051283
2010-03-04

Subterranean methods of processing hydrocarbon fluid-containing deposits and hydrocarbon recovery arrangements for recovering hydrocarbon-containing fluid from hydrocarbon-containing deposits

#46
20080122286
2008-05-29

Recovery of bitumen by hydraulic excavation

#47
20050218711
2005-10-06

Method and means for recovering hydrocarbons from oil sands by underground mining

#48
18915252
2025-03-04

Coal and coalbed methane mining system based on ground drilling, method and related device

#49
18377616
2024-11-12

High pressure fluid jet drill system

#50
15813878
2019-08-27

Method and apparatus for utilization of water produced from subterranean hydrocarbon reserves in mining of associated mineral deposits

#51
15203342
2018-06-12

Low-frequency pulsing sonic and hydraulic mining method

#52
15202694
2018-06-12

Low-frequency pulsing sonic and hydraulic mining system