ClassID:

104345

C09K8/725 - CPC Classification

Classification description:

Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations; Compositions for stimulating production by acting on the underground formation; Compositions for forming crevices or fractures; Eroding chemicals, e.g. acids Compositions containing polymers

Recent Application in this class:
#1
20250388801
2025-12-25

FURFURYL ALCOHOL MONOMER CONSOLIDATION TREATMENT

#2
20250282990
2025-09-11

SYSTEM AND METHOD FOR CONSUMING ACIDIC FLUIDS IN WELLS

#3
20250237138
2025-07-24

TRACER COMPOSITIONS

#4
20250237137
2025-07-24

TRACER COMPOSITIONS

#5
20250215308
2025-07-03

TREATMENT FLUIDS HAVING OIL-SOLUBLE DRAG REDUCING AGENTS FOR WELLBORE OPERATIONS

#6
20250084300
2025-03-13

RADIATION ACTIVATED WELL TREATMENT

#7
20250075122
2025-03-06

ADDITIVES TO PREVENT THERMAL THINNING IN POLYMER GEL SYSTEMS

#8
20240360355
2024-10-31

LOW VISCOSITY POLYMER-BASED RETARDED ACID

#9
20240141225
2024-05-02

Polyester diverting agents for low-temperature oil wells

#10
20240018412
2024-01-18

VISCOSIFYING FRICTION REDUCERS

#11
20230416598
2023-12-28

ACIDIZING COMPOSITIONS FOR IMPROVED FLUID PERFORMANCE

#12
20230332035
2023-10-19

DILUTED CATIONIC FRICTION REDUCERS

#13
20230279284
2023-09-07

Methods for making and using retarded acid compositions for well stimulation

#14
20230265742
2023-08-24

DEVICE FOR TREATING A BOTTOM-HOLE FORMATION OF A WELLBORE

#15
20230183560
2023-06-15

Attenuated acid formulations for acid stimulation

#16
20230147740
2023-05-11

Diverting agent and method of filling fracture in well using the same

#17
20230121527
2023-04-20

Diverter acid fluid composition for the stimulation of reservoirs by matrix acidification

#18
20220251441
2022-08-11

Polyester diverting agents for low-temperature oil wells

#19
20220235644
2022-07-28

Methods for targeted chemical treatment of well bores

#20
20220220355
2022-07-14

Embedded treatment fluid additives for use in subterranean formation operations

#21
20220162383
2022-05-26

Silane-Functionalized Polyalkyleneimine Clay Stabilizer for Treatment of Subterranean Formations

#22
20220098472
2022-03-31

Composition and Method for Breaking Synthetic-Polymer-Type Stimulation Fluids

#23
20220017808
2022-01-20

Diluted cationic friction reducers

#24
20210403800
2021-12-30

ANTI-CAKING OR BLOCKING AGENT FOR TREATING SOLID ACID PRECURSOR ADDITIVES USED IN TREATING SUBTERRANEAN FORMATIONS

#25
20210340433
2021-11-04

Acid emulsifier technology for continuous mixed emulsified acid systems

#26
20210292639
2021-09-23

Method of acidizing a subterranean formation comprising a gelling agent

#27
20210277302
2021-09-09

Methods for making and using retarded acid compositions for well stimulation

#28
20210238473
2021-08-05

Injection method for solid retarded acid

#29
20210222056
2021-07-22

Delivery of Halogens to a Subterranean Formation

#30
20210222055
2021-07-22

Delivery of halogens to a subterranean formation

#31
20210222054
2021-07-22

Fracturing fluid compositions and methods for making and using same

#32
20210214604
2021-07-15

Compositions and methods for cross-linking hydratable polymers using produced water

#33
20210198560
2021-07-01

Acidizing compositions for improved fluid performance

#34
20210189225
2021-06-24

Fluids for applications in downhole tools

#35
20210131252
2021-05-06

FRACTURING A FORMATION WITH MORTAR SLURRY

#36
20210079292
2021-03-18

Composition to reduce friction reducer fouling in wellbores

#37
20210062075
2021-03-04

Compositions and methods for acid diversion during acid stimulation of subterranean formations

#38
20210054722
2021-02-25

DEVICE FOR TREATING A BOTTOM-HOLE FORMATION WELLBORE

#39
20210054261
2021-02-25

Acidizing solution for dissolution of clay mineral and preparation method thereof

#40
20210032530
2021-02-04

Methods and compositions for acidizing and stabilizing formation of fracture faces in the same treatment

#41
20210017445
2021-01-21

Carbonate reservoir filtration-loss self-reducing acid

#42
20200399529
2020-12-24

Viscosifying friction reducers

#43
20200397093
2020-12-24

Boosters for breakers containing iron compounds

#44
20200270514
2020-08-27

WELL TREATMENT METHODS

#45
20200231869
2020-07-23

Encapsulation and controlled delivery of strong mineral acids

#46
20200231868
2020-07-23

Encapsulation and controlled delivery of strong mineral acids

#47
20200172796
2020-06-04

Diverting agent and method of filling fracture in well using the same

#48
20200062881
2020-02-27

Surface-active two-tailed hydrophobic associated polymer and preparation method thereof

#49
20190330519
2019-10-31

Chelating agent for reservoir acidification and stimulating injection and its preparation method and application

#50
20190316031
2019-10-17

Injection stimulation agent for water injection well and the preparation method and application thereof

#51
20190309218
2019-10-10

INHIBITION OF PRECIPITATION DURING SANDSTONE ACIDIZING

#52
20190276732
2019-09-12

Distributing an amorphic degradable polymer in wellbore operations

#53
20190264542
2019-08-29

Flow control system for a non-newtonian fluid in a subterranean well

#54
20190256766
2019-08-22

Method of acidizing a subterranean formation comprising a gelling agent

#55
20190249516
2019-08-15

LOW PRESSURE RESERVOIR COMPOSITE PLUG DRILL OUT

#56
20190249065
2019-08-15

Embedded treatment fluid additives for use in subterranean formation operations

#57
20190241796
2019-08-08

POLYMERIC DRAG REDUCING COMPOSITIONS AND METHODS FOR REDUCING DRAG AND/OR INCREASING VISCOSITY OF FLUIDS IN OIL AND/OR GAS WELLS

#58
20190241789
2019-08-08

Treatment fluids comprising recycled drilling cuttings and method of use

#59
20190233719
2019-08-01

Polylactic acid/acid-soluble hard particulate blends as degradable diverting agents

#60
20190225876
2019-07-25

COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS

#61
20190100692
2019-04-04

Compositions and methods for cross-linking hydratable polymers using produced water

#62
20190093007
2019-03-28

Methods and compositions for treating a subterranean formation with a polymeric additive composite

#63
20190093005
2019-03-28

High Temperature Crosslinked Fracturing Fluids

#64
20190062621
2019-02-28

Methods of controlling viscosity of acids

#65
20190048246
2019-02-14

AQUEOUS AMPHOLYTE POLYMER CONTAINING SOLUTIONS FOR SUBTERRANEAN APPLICATIONS

#66
20190040311
2019-02-07

METHODS FOR ENHANCING APPLICATIONS OF ELECTRICALLY CONTROLLED PROPELLANTS IN SUBTERRANEAN FORMATIONS

#67
20190016946
2019-01-17

High temperature crosslinked fracturing fluids

#68
20180362840
2018-12-20

Hydrogels of graft polymers for acid diversion

#69
20180291512
2018-10-11

Low water solubility compositions for use in corrosion protection

#70
20180274348
2018-09-27

Method of acidizing of subterranean formations in well operations

#71
20180273834
2018-09-27

METHODS FOR MAKING AND USING RETARDED ACID COMPOSITIONS FOR WELL STIMULATION

#72
20180273832
2018-09-27

Methods and systems for forming a fracturing fluid from a source of metal-laden water

#73
20180265635
2018-09-20

Silane-functionalized polyalkyleneimine clay stabilizer for treatment of subterranean formations

#74
20180244974
2018-08-30

Diluted cationic friction reducers

#75
20180237680
2018-08-23

Core-shell particles for treatment of subterranean formations

#76
20180223180
2018-08-09

Wrinkled capsules for treatment of subterranean formations

#77
20180215995
2018-08-02

Controlled release of well treatment agents into oil wells

#78
20180202278
2018-07-19

Method of using diverter and proppant mixture

#79
20180171203
2018-06-21

Suspending agents obtained by micellar polymerization

#80
20180148635
2018-05-31

Polymeric systems for particle dispersion

#81
20180148634
2018-05-31

Fluid composition for stimulation in the field of oil or gas production

#82
20180134947
2018-05-17

METHODS FOR TREATING HIGH TEMPERATURE SUBTERRANEAN FORMATIONS

#83
20180030339
2018-02-01

Chemical products for adhesive applications

#84
20180030335
2018-02-01

Method of forming a fracturing fluid from produced water

#85
20170355900
2017-12-14

PRODUCED WATER BORATE CROSSLINKING COMPOSITIONS AND METHOD OF USE

#86
20170342314
2017-11-30

Self-diverting acidizing system

#87
20170335174
2017-11-23

Method of stimulating a subterranean formation using an acid precursor composition

#88
20170298266
2017-10-19

Delayed Viscosity Well Treatment Methods and Fluids

#89
20170292066
2017-10-12

Synthetic Acid Compositions Alternatives to Conventional Acids in the Oil and Gas Industry

#90
20170284167
2017-10-05

DOWNHOLE TOOL CONTAINING DOWNHOLE-TOOL MEMBER CONTAINING REACTIVE METAL AND DOWNHOLE-TOOL MEMBER CONTAINING DEGRADABLE RESIN COMPOSITION, AND WELL-DRILLING METHOD

#91
20170275527
2017-09-28

Composition and method for improved treatment fluid

#92
20170260444
2017-09-14

WELL TREATMENT FLUIDS CONTAINING BIODEGRADABLE ZIRCONIUM CROSSLINKER AND METHODS OF USING THE SAME

#93
20170253790
2017-09-07

Composition including a viscosifier and a hydrophobically-modified polymer that includes a nitrogen-containing repeating unit for treatment of subterranean formations

#94
20170233643
2017-08-17

Biopolymer based cationic surfactant for clay stabilization and prevention of sludging

#95
20170233641
2017-08-17

Polymeric metal crosslinker for shear tolerant fracturing fluid application

#96
20170226409
2017-08-10

TREATMENT FLUID AND VISCOSITY CONTROL

#97
20170226407
2017-08-10

Composition comprising ultrafine cellulose fibers

#98
20170226399
2017-08-10

Subterranean formation processing composition comprising ultrafine cellulose fibers

#99
20170226398
2017-08-10

Composition comprising ultrafine cellulose fibers

#100
20170218258
2017-08-03

Fines fixing agent having improved compatibility with organic complexed borate fracturing fluids

#101
20170218251
2017-08-03

Polyvinyl alcohol-based shale inhibitor

#102
20170210977
2017-07-27

Surfactant formulations and associated methods for reduced and delayed adsorption of the surfactant

#103
20170210976
2017-07-27

Perforation balls and methods of using the same

#104
20170183564
2017-06-29

Encapsulation and controlled delivery of strong mineral acids

#105
20170183563
2017-06-29

Self-suspending proppant particulates using canola protein-based hydrogel

#106
20170183561
2017-06-29

Well treatment fluids comprising cross-linkable polysaccharides

#107
20170158951
2017-06-08

High temperature crosslinked fracturing fluids

#108
20170145303
2017-05-25

Methods for increasing the surface area of fractures or to increase the depth of penetration fractures in low permeability oil and gas reservoirs containing shale to increase productivity

#109
20170096597
2017-04-06

FRICTION REDUCTION ENHANCEMENT

#110
20170009130
2017-01-12

Imidazolinium compounds as dual corrosion inhibitors

#111
20170002623
2017-01-05

Well treatment

#112
20160376881
2016-12-29

Well treatment methods and fluids with GLDA salt

#113
20160326425
2016-11-10

Wellbore servicing materials and methods of making and using same

#114
20160312109
2016-10-27

Boosters for breakers containing iron compounds

#115
20160289526
2016-10-06

TREATMENT OF SUBTERRANEAN FORMATIONS WITH COMPOSITIONS INCLUDING POLYETHER-FUNCTIONALIZED POLYSILOXANES

#116
20160272879
2016-09-22

Substantially solid acidizing composition for treatment of subterranean formations

#117
20160272876
2016-09-22

Fluid composition for stimulation in the field of oil or gas production

#118
20160272869
2016-09-22

Treatment fluids and uses thereof

#119
20160264855
2016-09-15

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#120
20160251567
2016-09-01

VISCOSIFYING FRICTION REDUCERS

#121
20160230066
2016-08-11

Compositions for treating subterranean formations

#122
20160230065
2016-08-11

Dual-purpose viscosifier and surface active additives and methods of use

#123
20160222284
2016-08-04

Injecting polyelectrolyte based sacrificial agents for use in unconventional formations

#124
20160168450
2016-06-16

ACID CURING AGENT INCLUSION AND METHOD FOR PRODUCING ACID CURING AGENT INCLUSION

#125
20160160108
2016-06-09

Solids-free diverting agents and methods related thereto

#126
20160160107
2016-06-09

Controlling flow in downhole operations

#127
20160145482
2016-05-26

COMPOSITIONS FOR TREATING SUBTERRANEAN FORMATIONS

#128
20160137905
2016-05-19

COMPOSITION FOR FINES AGGLOMERATION

#129
20160122625
2016-05-05

Hydrolyzable compounds for treatment of a subterranean formation and methods of using the same

#130
20160115374
2016-04-28

Fracturing fluid viscosity-controlling agent to be used in hydraulic fracturing

#131
20160108307
2016-04-21

Methods for etching fractures and microfractures in shale formations

#132
20160102236
2016-04-14

Hydrophobically and hydrophilically modified polysaccharides and methods of using the same for treatment of a subterranean formation

#133
20160083641
2016-03-24

Solids free gellable treatment fluids

#134
20160040060
2016-02-11

Treatment fluids comprising an alkali metal complexing agent and methods for use thereof

#135
20160040055
2016-02-11

Compositions for treating subterranean formations

#136
20160032176
2016-02-04

Compositions and methods for treating subterranean formations

#137
20160024367
2016-01-28

Ethylene viscosifier polymer for treatment of a subterranean formation

#138
20160017215
2016-01-21

Encapsulation and controlled delivery of strong mineral acids

#139
20150329763
2015-11-19

Stabilization of polyacrylamide emulsion formulations

#140
20150322329
2015-11-12

Methods and systems for iron control using a phosphinated carboxylic acid polymer

#141
20150307769
2015-10-29

Permeability of subterranean reservoirs using acid diversion

#142
20150300131
2015-10-22

Self-degradable hydraulic diversion systems and methods for making and using same

#143
20150166879
2015-06-18

SELF-DIVERTING EMULSIFIED ACID SYSTEMS FOR HIGH TEMPERATURE WELL TREATMENTS AND THEIR USE

#144
20150114648
2015-04-30

Parylene coated chemical entities for downhole treatment applications

#145
20150107844
2015-04-23

Stimulation method using biodegradable zirconium crosslinker

#146
20150080271
2015-03-19

Foam or viscosified composition containing a chelating agent

#147
20150075789
2015-03-19

Boronated biopolymer crosslinking agents and methods relating thereto

#148
20150068744
2015-03-12

Fluid mobility modifiers for increased production in subterranean formations

#149
20150053409
2015-02-26

Delayed viscosity well treatment methods and fluids

#150
20150041132
2015-02-12

Method of using diverter and proppant mixture

#151
20150013983
2015-01-15

Solid-supported crosslinker for treatment of a subterranean formation

#152
20150005204
2015-01-01

Methods of using downhole compositions including an ion-sequestering compound

#153
20140371114
2014-12-18

Far field diversion technique for treating subterranean formation

#154
20140367108
2014-12-18

Acidizing compositions including ampholyte polymers

#155
20140353042
2014-12-04

Self-triggering lost circulation control in carbonate formation

#156
20140352969
2014-12-04

Ampholyte polymers and methods of treating subterranean formations with the same

#157
20140352962
2014-12-04

Ampholyte polymeric compounds in subterranean applications

#158
20140352960
2014-12-04

Ampholyte polymeric compounds in subterranean applications

#159
20140352959
2014-12-04

Diverting systems for use in low temperature well treatment operations

#160
20140338907
2014-11-20

Wellbore servicing materials and methods of making and using same

#161
20140329725
2014-11-06

Dual retarded acid system for well stimulation

#162
20140315765
2014-10-23

Treatment of a subterranean formation with composition including a microorganism or compound generated by the same

#163
20140178325
2014-06-26

Anti-settling and thickening compositions and methods for using same

#164
20140116701
2014-05-01

Wellbore servicing materials and methods of making and using same

#165
20140087975
2014-03-27

Treatment fluid containing a corrosion inhibitor of a polymer including a silicone and amine group

#166
20140073540
2014-03-13

Acid-in-oil emulsion compositions and methods for treating hydrocarbon-bearing formations

#167
20140000890
2014-01-02

Fracturing fluids and methods for treating hydrocarbon-bearing formations

#168
20130005617
2013-01-03

SELF-DIVERTING EMULSIFIED ACID SYSTEMS FOR HIGH TEMPERATURE WELL TREATMENTS AND THEIR USE

#169
20120202921
2012-08-09

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#170
20120202719
2012-08-09

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#171
20110303415
2011-12-15

Far field diversion technique for treating subterranean formation

#172
20110105367
2011-05-05

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#173
20100319916
2010-12-23

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#174
20090305044
2009-12-10

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#175
20090286698
2009-11-19

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#176
20070066491
2007-03-22

Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications

#177
17838667
2023-10-03

Method and composition for acidizing a subsurface formation utilizing a nitrogen gas-generating treatment fluid

#178
17816795
2023-12-12

Method to attenuate acid reactivity of subterranean formations with omniphobic chemicals

#179
17658275
2023-08-29

Interfacial assembly of integrated silica nanoparticles and fluorosurfactant heterostructures in foamed fracturing fluids

#180
17643430
2023-05-16

Composition and method of using date palm fibers in hydraulic fracturing