ClassID:

135654

E21B43/283 - CPC Classification

Classification description:

Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells; Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent in association with a fracturing process

Recent Application in this class:
#1
20260098463
2026-04-09

METHODS OF IMPROVED CAVERN RUBBLIZATION FOR ENHANCED POTASH RECOVERY

#2
20260071529
2026-03-12

Method and Materials for Employing Fractures in Mining Operations

#3
20260022631
2026-01-22

SYSTEMS AND METHODS FOR HORIZONTAL WELLS FOR IN-SITU MINING WITH OR WITHOUT ELECTROKINETIC ASSISTANCE

#4
20250389179
2025-12-25

In Situ Leaching of Copper From Porphyry Copper Ore Bodies Through Stimulated Natural Fracture Networks

#5
20250320803
2025-10-16

USING ELECTRICAL RESERVOIR STIMULATION TO ENGINEER A GEOLOGIC BATTERY FOR LONG-TERM ENERGY STORAGE AND HYDROGEN GENERATION

#6
20250223898
2025-07-10

METHODS OF IMPROVED CAVERN RUBBLIZATION FOR ENHANCED POTASH RECOVERY

#7
20250115806
2025-04-10

DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#8
20250115805
2025-04-10

NOVEL DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#9
20250085030
2025-03-13

Fracturing Hot Rock

#10
20250011644
2025-01-09

NOVEL DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#11
20250011643
2025-01-09

NOVEL DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#12
20240301277
2024-09-12

Methods for Stimulating a Hydrocarbon-bearing Formation by Perforating a Wellbore and Introducing an Acidic Composition in the Wellbore

#13
20240279533
2024-08-22

DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#14
20240254383
2024-08-01

NOVEL DOWNHOLE METHODS AND COMPOSITIONS USED IN SUCH

#15
20240191128
2024-06-13

Methods for Stimulating a Hydrocarbon-bearing Formation by Perforating a Wellbore and Introducing an Acidic Composition in the Wellbore

#16
20240141770
2024-05-02

METHODS OF IMPROVED CAVERN RUBBLIZATION FOR ENHANCED POTASH RECOVERY

#17
20240116789
2024-04-11

REMOVAL OF CHELATED IRON FROM PRODUCED WATER

#18
20230353017
2023-11-02

ENCODERLESS VECTOR CONTROL FOR VFD IN HYDRAULIC FRACTURING APPLICATIONS

#19
20230130169
2023-04-27

Fracturing hot rock

#20
20230125900
2023-04-27

Method for fracking of simulation of hydrocarbon bearing formation

#21
20230120003
2023-04-20

Methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing an acidic composition in the wellbore

#22
20230034895
2023-02-02

Methods for stimulating hydrocarbon-bearing formations

#23
20220363981
2022-11-17

Methods for stimulating hydrocarbon-bearing formations

#24
20220064519
2022-03-03

VISCOELASTIC COMPOSITIONS FOR MATRIX ACIDIZING

#25
20220049156
2022-02-17

Methods for spotting acid in a wellbore

#26
20210254445
2021-08-19

Methods for recovering a mineral from a mineral-bearing deposit

#27
20210230476
2021-07-29

Methods for stimulating a hydrocarbon-bearing formation by perforating a wellbore and introducing and acidic composition in the wellbore

#28
20210189855
2021-06-24

Use of sulfonic acids in downhole methods

#29
20200392805
2020-12-17

DEVICES AND METHODS FOR GENERATING RADIALLY PROPOGATING ULTRASONIC WAVES AND THEIR USE

#30
20200362681
2020-11-19

Encoderless vector control for VFD in hydraulic fracturing applications

#31
20200340346
2020-10-29

Mineral recovery

#32
20200263080
2020-08-20

Downhole methods

#33
20200048529
2020-02-13

Treating seawater for hydrocarbon production

#34
20190368330
2019-12-05

Horizontal line drive selective solution mining methods

#35
20190345807
2019-11-14

Methods for stimulating hydrocarbon-bearing formations

#36
20190345376
2019-11-14

Methods for stimulating hydrocarbon-bearing formations

#37
20190225867
2019-07-25

Treating seawater for hydrocarbon production

#38
20190093454
2019-03-28

Actuable downhole tools for attachment to tubular strings

#39
20190010795
2019-01-10

Methods for deep reservoir stimulation using acid-forming fluids

#40
20180362840
2018-12-20

Hydrogels of graft polymers for acid diversion

#41
20180313182
2018-11-01

WELLBORE SLEEVE INJECTOR AND METHOD OF USE

#42
20180291720
2018-10-11

Compositions and methods for controlled delivery of acid

#43
20180156020
2018-06-07

Multi-well solution mining exploitation of an evaporite mineral stratum

#44
20170226407
2017-08-10

Composition comprising ultrafine cellulose fibers

#45
20170167239
2017-06-15

Traveling undercut solution mining systems and methods

#46
20170002658
2017-01-05

IN-SITU LEACHING OF ORE DEPOSITS LOCATED IN IMPERMEABLE UNDERGROUND FORMATIONS

#47
20160356139
2016-12-08

Batch solution mining using lithological displacement of an evaporite mineral stratum and mineral dissolution with stationary solvent

#48
20160356118
2016-12-08

Method to minimize brine contamination and/or gas migration during in situ trona solution mining

#49
20160115774
2016-04-28

Traveling undercut solution mining systems and methods

#50
20150345266
2015-12-03

Method for treating and producing from a subterranean region

#51
20150307769
2015-10-29

Permeability of subterranean reservoirs using acid diversion

#52
20150260025
2015-09-17

Multi-well solution mining exploitation of an evaporite mineral stratum

#53
20150211345
2015-07-30

Methods and systems for stimulating a subterranean formation containing a carbonate mineral

#54
20150159081
2015-06-11

Composition and method for treating subterranean formation

#55
20150068753
2015-03-12

Apparatus and method for solution mining using cycling process

#56
20140374107
2014-12-25

Methods and systems for acidizing subterranean formations with treatment fluids containing dual-functioning chelating agents

#57
20140225415
2014-08-14

Traveling undercut solution mining systems and methods

#58
20130171048
2013-07-04

Solution mining of ore containing sodium carbonate and bicarbonate

#59
20110127825
2011-06-02

Traveling undercut solution mining systems and methods

#60
20110107877
2011-05-12

Remedial heap treatment

#61
20070186724
2007-08-16

Remedial heap treatment

#62
20060120942
2006-06-08

Sodium carbonate and sodium bicarbonate production

#63
17685954
2023-07-11

Inducing subterranean formation complexity