ClassID:

104342

C09K8/703 - 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 characterised by their form or by the form of their components, e.g. foams Foams

Recent Application in this class:
#1
20260132330
2026-05-14

HIGH-TEMPERATURE FOAM FRACTURING FLUID WITH SYNTHETIC POLYMER

#2
20260078297
2026-03-19

STABILIZED CO2 FOAM COMPOSITIONS FOR SUBTERANEAN FRACTURING APPLICATIONS AND COMPOSITIONS RELATED THERETO

#3
20250376911
2025-12-11

SYSTEMS AND METHODS FOR RECOVERING AMMONIA FROM A SUBSURFACE FORMATION

#4
20250354051
2025-11-20

FOAMING AGENTS, GAS MOBILITY CONTROL AGENTS, METHODS, AND SYSTEMS FOR ENHANCED OIL RECOVERY

#5
20250243401
2025-07-31

FOAMED ACID SYSTEM STABILIZED BY TWO DIMENSIONAL-GRAPHENE AND SURFACTANT COMPOSITE FOR FRACTURING APPLICATION

#6
20250059434
2025-02-20

EMULSIONS CONTAINING WATER-SOLUBLE ACID RETARDING AGENTS AND METHODS OF MAKING AND USING

#7
20240418068
2024-12-19

METHOD FOR HYDRAULIC FRACTURING OF CONVENTIONAL AND UNCONVENTIONAL RESERVOIRS BY INTRODUCING ENERGIZED FLUID

#8
20240400889
2024-12-05

FOAMED ACID SYSTEM STABILIZED BY TWO DIMENSIONAL-GRAPHENE AND SURFACTANT COMPOSITE FOR FRACTURING APPLICATION

#9
20240384160
2024-11-21

STABILIZED CO2 FOAM COMPOSITIONS FOR SUBTERANEAN FRACTURING APPLICATIONS AND COMPOSITIONS RELATED THERETO

#10
20240183261
2024-06-06

ACID CLEANING SYSTEM AND METHOD

#11
20240182780
2024-06-06

Lignin-based fracturing fluids and related methods

#12
20240159131
2024-05-16

Method of Enhancing Foam Stability for Stimulation of Low Pressure Reservoirs

#13
20240018413
2024-01-18

Pillar fracturing

#14
20240010909
2024-01-11

Pillar fracturing

#15
20240010908
2024-01-11

Pillar fracturing

#16
20230323194
2023-10-12

FOAM STABILIZATION USING NANOPARTICLES

#17
20230303912
2023-09-28

FOAMING AGENTS, GAS MOBILITY CONTROL AGENTS, METHODS, AND SYSTEMS FOR ENHANCED OIL RECOVERY

#18
20230257645
2023-08-17

Emulsions containing water-soluble acid retarding agents and methods of making and using

#19
20230183560
2023-06-15

Attenuated acid formulations for acid stimulation

#20
20230183552
2023-06-15

Foamed scale removal and inhibition method for subterranean formation

#21
20220389304
2022-12-08

Methods of using olefin sulfonates

#22
20220372361
2022-11-24

Olefin sulfonate compositions

#23
20220363979
2022-11-17

OLEFIN SULFONATES

#24
20220220366
2022-07-14

Reactive hydraulic fracturing fluid

#25
20220220365
2022-07-14

Reactive hydraulic fracturing fluid

#26
20220127522
2022-04-28

Treatment of subterranean formations

#27
20220025251
2022-01-27

Diverting agents for well stimulation

#28
20220017813
2022-01-20

Pillar fracturing

#29
20210380872
2021-12-09

EMULSIONS CONTAINING WATER-SOLUBLE ACID RETARDING AGENTS AND METHODS OF MAKING AND USING

#30
20210277301
2021-09-09

Fracturing fluid composition and method for in situ generation of geomimetic crystal network proppants

#31
20210215028
2021-07-15

Hybrid fracturing treatment with natural gas

#32
20210207021
2021-07-08

Foamed treatment fluids comprising nanoparticles

#33
20210198558
2021-07-01

Reactive hydraulic fracturing fluid

#34
20210189224
2021-06-24

Omniphobic emulsions for mitigating gas condensate banking and methods of making and using same

#35
20210047558
2021-02-18

Defoaming composition comprising a tall-oil-derived surfactant

#36
20210040375
2021-02-11

Foaming Agent Composition and Method for Removing Hydrocarbon Liquids from Subterranean Wells

#37
20210024815
2021-01-28

Methods for treating a subterranean formation with a foamed acid system

#38
20210024814
2021-01-28

Oxidizers for carbon dioxide-based fracturing fluids

#39
20210024813
2021-01-28

Compositions for treating a subterranean formation with a foamed system and corresponding methods

#40
20210024812
2021-01-28

Organic salts of oxidizing anions as energetic materials

#41
20200392399
2020-12-17

Omniphobic emulsions for mitigating gas condensate banking and methods of making and using same

#42
20200385630
2020-12-10

Use of liquid natural gas for well treatment operations

#43
20200370404
2020-11-26

Foam from low cost petroleum sulfonate surfactants for fracturing along with wettability alteration

#44
20200282373
2020-09-10

Testing method for evaluating the effect of CO2 reaction rate of acid rock plate

#45
20200270514
2020-08-27

WELL TREATMENT METHODS

#46
20200190396
2020-06-18

Geochemically-driven wettability modification for subterranean surfaces

#47
20200172791
2020-06-04

Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity

#48
20200165512
2020-05-28

Acidizing and interfacial tension reducing hydrolysable oils for subterranean treatments

#49
20200157406
2020-05-21

Ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof

#50
20200056464
2020-02-20

Hydraulic fracturing using multiple fracturing fluids sequentially

#51
20200024507
2020-01-23

Processes for fracturing using shape memory alloys

#52
20190353021
2019-11-21

FRACTURING A FORMATION WITH MORTAR SLURRY

#53
20190300781
2019-10-03

Liquid gas treatment fluids for use in subterranean formation operations

#54
20190264095
2019-08-29

In situ formed inorganic solids in fracture networks

#55
20190249076
2019-08-15

Methods and systems incorporating N-(phosphonoalkyl)iminodiacetic acid particulates

#56
20190177606
2019-06-13

METHODS AND MATERIALS FOR GENERATING CONDUCTIVE CHANNELS WITHIN FRACTURE GEOMETRY

#57
20190085236
2019-03-21

Siloxane surfactant additives for oil and gas applications

#58
20190055828
2019-02-21

SYSTEMS AND METHODS OF OPTIMIZING Y-GRADE NGL FRACTURING FLUIDS

#59
20190055462
2019-02-21

Y-GRADE NGL FRACTURING FLUIDS

#60
20190040306
2019-02-07

Enhancing acid fracture conductivity

#61
20180334614
2018-11-22

Enhancing acid fracture conductivity

#62
20180334613
2018-11-22

Enhancing acid fracture conductivity

#63
20180334612
2018-11-22

Enhancing acid fracture conductivity

#64
20180328147
2018-11-15

Fracturing fluids and methods of treating hydrocarbon formations

#65
20180306006
2018-10-25

Methods of using superabsorbent polymers for fracturing and sand control applications

#66
20180298271
2018-10-18

In situ solid organic pillar placement in fracture networks

#67
20180291719
2018-10-11

Method of treating a subterranean formation with natural gas

#68
20180273830
2018-09-27

Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity

#69
20180265773
2018-09-20

AQUEOUS PARTICULATE SLURRIES AND METHODS OF MAKING THE SAME

#70
20180244980
2018-08-30

Emulsions containing water-soluble acid retarding agents and methods of making and using

#71
20180238153
2018-08-23

Use of gaseous phase natural gas as a carrier fluid during a well intervention operation

#72
20180237685
2018-08-23

Micro-proppant fracturing fluid compositions for enhancing complex fracture network performance

#73
20180163118
2018-06-14

Foaming agent composition and method for removing hydrocarbon liquids from subterranean wells

#74
20180149006
2018-05-31

Gas diverter for well and reservoir stimulation

#75
20180135397
2018-05-17

Gas diverter for well and reservoir stimulation

#76
20180127641
2018-05-10

Microbubbles for heat and/or gas generation in subterranean formations

#77
20180127640
2018-05-10

Chelating etching agent stimulation and proppant stabilization of low-permeability subterranean formations

#78
20180044577
2018-02-15

Forming proppant packs having proppant-free channels therein in subterranean formation fractures

#79
20180044573
2018-02-15

Method of fracking using silicone surfactants

#80
20180022985
2018-01-25

METHOD OF USING CATIONIC POLYMERS COMPRISING IMIDAZOLIUM GROUPS FOR PERMANENT CLAY STABILIZATION

#81
20180010038
2018-01-11

Foam forming compositions comprising a particulate inorganic material

#82
20170275521
2017-09-28

L-GRADE STIMULATION FLUID

#83
20170275520
2017-09-28

Low temperature waterless stimulation fluid

#84
20170247997
2017-08-31

A METHOD OF TREATING A SUBTERRANEAN FORMATION

#85
20170240804
2017-08-24

Foam composition

#86
20170240800
2017-08-24

Inorganic fine particle reinforced foam system for oil-gas field and preparation method thereof

#87
20170210976
2017-07-27

Perforation balls and methods of using the same

#88
20170152433
2017-06-01

Cationic polymers for foam fracturing applications

#89
20170137702
2017-05-18

Method for modification and delivery of proppant during well operations, method for hydraulic fracturing and method for gravel packing

#90
20170044425
2017-02-16

Stability improvement of COfoam for enhanced oil recovery applications using polyelectrolytes and polyelectrolyte complex nanoparticles

#91
20160319184
2016-11-03

Degradable reticulated foam particulates for use in forming highly conductive proppant packs

#92
20160312108
2016-10-27

Hydrocarbon-based fracturing fluid composition, system, and method

#93
20160298435
2016-10-13

Gas diverter for well and reservoir stimulation

#94
20160289549
2016-10-06

Fracturing fluids and methods of treating hydrocarbon formations

#95
20160289547
2016-10-06

Methods of using superabsorbent polymers for fracturing and sand control applications

#96
20160289542
2016-10-06

FRACTURING FLUIDS AND METHODS OF TREATING HYDROCARBON FORMATIONS

#97
20160289541
2016-10-06

Use of superabsorbent polymers for pressure control and diversion applications

#98
20160289530
2016-10-06

Drilling fluids with leakoff control and drill cuttings removal sweeps

#99
20160230062
2016-08-11

Methods and systems for sequestering carbon dioxide in a subterranean formation

#100
20160194551
2016-07-07

Method for removing bitumen to enhance formation permeability

#101
20160177171
2016-06-23

Multifunctional foaming composition with wettability modifying, corrosion inhibitory and mineral scale inhibitory/dispersants properties for high temperature and ultra high salinity

#102
20160145486
2016-05-26

WELLBORE SERVICING COMPOSITIONS AND METHODS OF MAKING AND USING SAME

#103
20160075932
2016-03-17

Foamed fluid compositions having high salinity using anionic surfactants and methods therefor

#104
20150377002
2015-12-31

ENVIRONMENTALLY FRIENDLY BASE FLUIDS AND METHODS FOR MAKING AND USING SAME

#105
20150376999
2015-12-31

DOWNHOLE POLYMER FOAM APPLICATIONS

#106
20150307772
2015-10-29

Compositions and methods for making aqueous slurry

#107
20150148268
2015-05-28

Foamers for downhole injection

#108
20150080271
2015-03-19

Foam or viscosified composition containing a chelating agent

#109
20150075776
2015-03-19

OPTIMIZATION OF BIOGENIC METHANE PRODUCTION FROM HYDROCARBON SOURCES

#110
20150068751
2015-03-12

Siloxane surfactant additives for oil and gas applications

#111
20140345878
2014-11-27

Syntactic foam frac ball and methods of using same

#112
20140345875
2014-11-27

Syntactic Foam Frac Ball and Methods of Using Same

#113
20140323362
2014-10-30

Defoamer formulation and methods for making and using same

#114
20140251625
2014-09-11

Foamed fracturing fluids and methods for treating hydrocarbon bearing formations

#115
20140174723
2014-06-26

Defoaming agent compositions and methods of making and using same

#116
20140116702
2014-05-01

Expanded Wellbore Servicing Materials and Methods of Making and Using Same

#117
20140110117
2014-04-24

Modified nonionic surfactant formulations for enhanced oil recovery

#118
20140102699
2014-04-17

Defoaming agent compositions and methods of making and using same

#119
20140060828
2014-03-06

Methods for hindering settling of proppant aggregates in subterranean operations

#120
20130341020
2013-12-26

Methods of using nanoparticle suspension aids in subterranean operations

#121
20130331301
2013-12-12

Methods for using complementary surfactant compositions

#122
20130292116
2013-11-07

Methods for Controlling Formation Fines Migration

#123
20130252853
2013-09-26

Process for drilling subterranean cavities

#124
20130220605
2013-08-29

Non-hydraulic fracturing and cold foam proppant delivery systems, methods, and processes

#125
20130098622
2013-04-25

Downhole polymer foam applications

#126
20130081820
2013-04-04

HOSTILE ENVIRONMENT STABLE COMPOSITIONS AND DRILLING AND FRACTURING FLUIDS CONTAINING SAME

#127
20130032346
2013-02-07

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

#128
20130029883
2013-01-31

GAS GENERATING SYSTEM FOR STIMULATION AND DELIQUIFICATION

#129
20130025869
2013-01-31

Thermally stable, nonionic foaming agent for foam fracturing fluids

#130
20120329684
2012-12-27

Polymeric gel system and methods for making and using same in hydrocarbon recovery

#131
20120283154
2012-11-08

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

#132
20120261126
2012-10-18

Methods and compositions for controlling formation fines and reducing proppant flow-back

#133
20120181019
2012-07-19

Nanohybrid phase interfaces for altering wettability in oil field applications

#134
20120130030
2012-05-24

Polycarboxylic acid gelling agents

#135
20120129734
2012-05-24

Use of hydrophobically associated copolymer as an additive in specific oilfield applications

#136
20120073817
2012-03-29

Tethered polymers used to enhance the stability of microemulsion fluids

#137
20120071370
2012-03-22

Defoamer formulation and methods for making and using same

#138
20120071367
2012-03-22

Environmentally friendly base fluids and methods for making and using same

#139
20120071366
2012-03-22

Complementary surfactant compositions and methods for making and using same

#140
20120067586
2012-03-22

Aqueous foaming compositions with high tolerance to hydrocarbons

#141
20120024529
2012-02-02

Stimuli-responsive high viscosity pill

#142
20120006551
2012-01-12

Method of fracturing with phenothiazine stabilizer

#143
20110315383
2011-12-29

GELATION ACCELERATION

#144
20110287983
2011-11-24

TREATMENT FLUIDS MADE OF HYDANTOIN DERIVATIVES FOR OPERATIONS IN A WELL

#145
20110251111
2011-10-13

Foaming agent for subterranean formations treatment, and methods of use thereof

#146
20110240309
2011-10-06

COMPOSITION SUITABLE FOR PRODUCTION OF FOAM EXTINGUISHANTS

#147
20110237470
2011-09-29

METHOD TO DECREASE VISCOSITY OF GELLED OIL

#148
20110224109
2011-09-15

Reversible Peptide Surfactants For Oilfield Applications

#149
20110168396
2011-07-14

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

#150
20110143970
2011-06-16

VISCOELASTIC FLUIDS CONTAINING HYDROXYETHYL CELLULOSE

#151
20110071060
2011-03-24

FOAMERS FOR DOWNHOLE INJECTION

#152
20110030958
2011-02-10

Method for treating subterranean formation with degradable material

#153
20110005760
2011-01-13

System and method for low damage fracturing

#154
20100331223
2010-12-30

Acidic viscosity enhancer for viscoelastic surfactant fluids

#155
20100234248
2010-09-16

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

#156
20100181070
2010-07-22

Methods of designing treatment fluids based on solid-fluid interactions

#157
20100175874
2010-07-15

Fiber laden energized fluids and methods of use thereof

#158
20100167963
2010-07-01

Well treatment

#159
20100132948
2010-06-03

Delayed breaking of well treatment fluids

#160
20100122815
2010-05-20

Foamed gel systems for fracturing subterranean formations, and methods for making and using same

#161
20100113308
2010-05-06

Hydrocarbon fluid compositions and methods for using same

#162
20100044050
2010-02-25

Fluorinated surfactants and methods of using the same

#163
20100044049
2010-02-25

Green coal bed methane fracturing fluid compositions, methods of preparation and methods of use

#164
20100044048
2010-02-25

Non-toxic, green fracturing fluid compositions, methods of preparation and methods of use

#165
20100029515
2010-02-04

HYDROCARBON FLUIDS AND METHODS OF USING SAME

#166
20100025038
2010-02-04

METHODS OF USING STABLE HYDROCARBON FOAMS

#167
20100018707
2010-01-28

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

#168
20090298719
2009-12-03

Method for treating subterranean formation with enhanced viscosity foam

#169
20090255668
2009-10-15

Clean fluid systems for partial monolayer fracturing

#170
20090188639
2009-07-30

Use of water-soluble polymer complexes in aqueous systems

#171
20090181865
2009-07-16

Well Treatment Composition Crosslinkers and Uses Thereof

#172
20090025934
2009-01-29

System and method for low damage fracturing

#173
20090023613
2009-01-22

Polysaccharide treatment fluid and method of treating a subterranean formation

#174
20080305971
2008-12-11

Polysaccharide treatment fluid and method of treating a subterranean formation

#175
20080269080
2008-10-30

Wellbore treatment compositions containing foam extenders and methods of use thereof

#176
20080251252
2008-10-16

Polymeric gel system and methods for making and using same in hydrocarbon recovery

#177
20080217012
2008-09-11

Gelled emulsions and methods of using the same

#178
20080200351
2008-08-21

Method of recycling fracturing fluids using a self-degrading foaming composition

#179
20080081771
2008-04-03

Foaming agent for subterranean formations treatment, and methods of use thereof

#180
20080070812
2008-03-20

Carbon dioxide foamed fluids

#181
20080051301
2008-02-28

Surfactants not toxic to bacteria

#182
20080039346
2008-02-14

Methods for effecting controlled break in pH dependent foamed fracturing fluid

#183
20080026957
2008-01-31

Treatment and Production of Subterranean Formations with Heteropolysaccharides

#184
20080011486
2008-01-17

BIODEGRADABLE FOAM COMPOSITIONS FOR OIL FIELD OPERATIONS

#185
20080011478
2008-01-17

Methods and compositions for controlling formation fines and reducing proppant flow-back

#186
20080004187
2008-01-03

Energized fluids and methods of use thereof

#187
20070293404
2007-12-20

Subterranean Treatment Methods using Methanol Containing Foams

#188
20070277978
2007-12-06

Silicone-tackifier matrixes and methods of use thereof

#189
20070203029
2007-08-30

Foamed treatment fluids and associated methods

#190
20070199708
2007-08-30

Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments

#191
20070197402
2007-08-23

Hydrocarbon fluids and methods of using same

#192
20070187105
2007-08-16

Foamed treatment fluids and associated methods

#193
20070129257
2007-06-07

Method for foaming a hydrocarbon drilling fluid and for producing light weight hydrocarbon fluids

#194
20070123429
2007-05-31

Recyclable foamed fracturing fluids and methods of using the same

#195
20070087941
2007-04-19

Storable fracturing suspensions containing ultra lightweight proppants in xanthan based carriers and methods of using the same

#196
20070044965
2007-03-01

Coarse-foamed fracturing fluids and associated methods

#197
20070042913
2007-02-22

Wellbore treatment compositions containing foam extenders and methods of use thereof

#198
20070042912
2007-02-22

Delayed tackifying compositions and associated methods involving controlling particulate migration

#199
20070034378
2007-02-15

Methods for effecting controlled break in pH dependent foamed fracturing fluid

#200
20070007010
2007-01-11

Methods and compositions for controlling formation fines and reducing proppant flow-back

#201
20060289165
2006-12-28

Methods for effecting controlled break in pH dependent foamed fracturing fluid

#202
20060260815
2006-11-23

Method of recycling fracturing fluids using a self-degrading foaming composition

#203
20060258543
2006-11-16

Degradable surfactants and methods for use

#204
20060247136
2006-11-02

Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods

#205
20060243446
2006-11-02

Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods

#206
20060234872
2006-10-19

Low damage treatment fluids and methods of using the same

#207
20060234870
2006-10-19

Methods and compositions for delaying the release of treatment chemicals

#208
20060229213
2006-10-12

Fluids comprising zirconium isopropylamine crosslinking agents and associated methods

#209
20060211775
2006-09-21

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

#210
20060205605
2006-09-14

Well treatment composition crosslinkers and uses thereof

#211
20060196662
2006-09-07

Methods and compositions for servicing fluids comprising derivatized cellulose gelling agents

#212
20060178277
2006-08-10

Fracturing fluid containing amphoteric glycinate surfactant

#213
20060178276
2006-08-10

Energized fluids and methods of use thereof

#214
20060166837
2006-07-27

Methods of treating subterranean formations with heteropolysaccharides based fluids

#215
20060166836
2006-07-27

Energized fluids and methods of use thereof

#216
20060148660
2006-07-06

Foamed viscoelastic surfactants

#217
20060148658
2006-07-06

Compositions for reducing the viscosity of treatment fluids

#218
20060144592
2006-07-06

Methods for reducing the viscosity of treatment fluids

#219
20060131021
2006-06-22

Method and composition for treating a subterranean formation with splittable foams

#220
20060113080
2006-06-01

Methods of fracturing using fly ash aggregates

#221
20060090895
2006-05-04

Foamed treatment fluids, foaming additives, and associated methods

#222
20060089266
2006-04-27

Methods of stabilizing surfaces of subterranean formations

#223
20060054324
2006-03-16

Fiber laden energized fluids and methods of use

#224
20060002879
2006-01-05

Methods of treating keratin based substrates

#225
20050267007
2005-12-01

High temperature foamer formulations for downhole injection

#226
20050183837
2005-08-25

Use of water-soluble polymer complexes in aqueous systems

#227
20050178553
2005-08-18

Two stage subterranean zone fracturing fluids and methods

#228
20050155765
2005-07-21

Friction reducers for fluids comprising carbon dioxide and methods of using friction reducers in fluids comprising carbon dioxide

#229
20050137114
2005-06-23

Foamer composition and methods for making and using same

#230
20050126781
2005-06-16

Methods of generating gas in well treating fluids

#231
20050124500
2005-06-09

Carbon dioxide foamed fluids

#232
20050077047
2005-04-14

Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid

#233
20050045335
2005-03-03

Systems and methods for treating a subterranean formation using carbon dioxide and a crosslinked fracturing fluid

#234
20050043188
2005-02-24

Recyclable foamed fracturing fluids and methods of using the same

#235
20050039919
2005-02-24

Methods of fracturing high temperature subterranean zones and foamed fracturing fluids therefor

#236
20050003965
2005-01-06

Hydraulic fracturing method

#237
19013691
2026-03-17

Hydrogen production from iron-rich formations

#238
17838667
2023-10-03

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

#239
17706116
2023-02-14

Energized fracturing fluid by generation of nitrogen gas

#240
17658275
2023-08-29

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

#241
15595108
2018-10-16

Enhancing acid fracture conductivity

#242
15442977
2018-07-10

Proppant drying system and method