ClassID:

104362

C09K8/94 - 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 characterised by their form or by the form of their components, e.g. encapsulated material Foams

Recent Application in this class:
#1
20250230352
2025-07-17

SYSTEMS AND METHODS FOR STORING AN ENERGY- STORAGE FLUID WITHIN A SUBTERRANEAN FORMATION HAVING SUPPRESSED MICROBIAL ACTIVITY

#2
20250122421
2025-04-17

COMPOSITIONS AND METHODS FOR PRESSURE PROTECTION

#3
20240384158
2024-11-21

COMPOSITIONS AND METHODS FOR FOAM STIMULATION

#4
20240336832
2024-10-10

Propoxylates for foam enhancement

#5
20240240074
2024-07-18

COMPOSITIONS FOR STIMULATION OPERATIONS

#6
20230313025
2023-10-05

Superheated phase changing nanodroplets for hydrocarbon reservoir applications

#7
20230183562
2023-06-15

Compositions and methods for pressure protection

#8
20230084576
2023-03-16

Compositions and methods for pressure protection

#9
20230023003
2023-01-26

Viscoelastic surfactant-based treatment fluids for use with lost circulation materials

#10
20220290031
2022-09-15

AQUEOUS FOAM COMPOSITIONS AND METHODS OF MAKING AND USING THEREOF

#11
20220169918
2022-06-02

Enhancing foam stability using allium sativum oil

#12
20220025252
2022-01-27

Method for improving aquifer remediation using in-situ generated nitrogen foam

#13
20220025246
2022-01-27

Hydrocarbon based carrier fluid

#14
20210355374
2021-11-18

ENHANCING FOAM STABILITY USING ALLIUM SATIVUM OIL

#15
20210246363
2021-08-12

Method of improving rock hardness in carbonate formations

#16
20210214509
2021-07-15

Lignocellulose nanofibril material, stable foam system based thereon, preparation method and application thereof

#17
20210071068
2021-03-11

Methane hydrates improved hydrostatic pressure of foam fracturing

#18
20210040375
2021-02-11

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

#19
20210002991
2021-01-07

Methods for pressure protection using a gas

#20
20210002990
2021-01-07

Methods for improving hydrocarbon production from an unconventional subterranean formation

#21
20210002544
2021-01-07

Methods for pressure protection using a foamed pressure protection composition

#22
20210002444
2021-01-07

Methods for foam stimulation

#23
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

#24
20200157406
2020-05-21

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

#25
20200123886
2020-04-23

Optimized foam application for hydrocarbon well stimulation

#26
20190380940
2019-12-19

Foam boosting saccharide blend

#27
20190322923
2019-10-24

Methods for dispersing proppant

#28
20190284920
2019-09-19

Method for dewatering and operating coal seam gas wells

#29
20190249076
2019-08-15

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

#30
20190119560
2019-04-25

Modified nano-graphite particle three-phase foam profile control and flooding system and preparation method thereof

#31
20190112522
2019-04-18

Aqueous-based epoxy resin microemulsion

#32
20190093007
2019-03-28

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

#33
20190085236
2019-03-21

Siloxane surfactant additives for oil and gas applications

#34
20190055828
2019-02-21

SYSTEMS AND METHODS OF OPTIMIZING Y-GRADE NGL FRACTURING FLUIDS

#35
20190055461
2019-02-21

Systems and methods of optimizing Y-Grade NGL unconventional reservoir stimulation fluids

#36
20190032463
2019-01-31

Remedial treatment of wells with voids behind casing

#37
20180298271
2018-10-18

In situ solid organic pillar placement in fracture networks

#38
20180291719
2018-10-11

Method of treating a subterranean formation with natural gas

#39
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

#40
20180238153
2018-08-23

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

#41
20180222854
2018-08-09

Alpha-olefin sulfonic dimer acid process

#42
20180171215
2018-06-21

Composition of an organic foaming additive for high temperature and high salinity

#43
20180163118
2018-06-14

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

#44
20180149006
2018-05-31

Gas diverter for well and reservoir stimulation

#45
20180142139
2018-05-24

PROPPANTS FOR HYDRAULIC FRACTURING TECHNOLOGIES

#46
20180135397
2018-05-17

Gas diverter for well and reservoir stimulation

#47
20180127641
2018-05-10

Microbubbles for heat and/or gas generation in subterranean formations

#48
20180127640
2018-05-10

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

#49
20180127360
2018-05-10

AMINO ACID BASED AMPHOTERIC SURFACTANT

#50
20180030340
2018-02-01

Methods of preparing treatment fluids comprising anhydrous ammonia for use in subterranean formation operations

#51
20180010038
2018-01-11

Foam forming compositions comprising a particulate inorganic material

#52
20170298268
2017-10-19

Y-Grade NGL stimulation fluids

#53
20170292057
2017-10-12

Hydrocarbon based carrier fluid

#54
20170275520
2017-09-28

Low temperature waterless stimulation fluid

#55
20170247997
2017-08-31

A METHOD OF TREATING A SUBTERRANEAN FORMATION

#56
20170240804
2017-08-24

Foam composition

#57
20170218256
2017-08-03

Treatment of Subterranean Formations with Compositions Including Mycelium

#58
20170137702
2017-05-18

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

#59
20170107421
2017-04-20

Aminosulphonate foam stabilizers

#60
20170082528
2017-03-23

Device for evaluating foaming property of gas-soluble surfactant and application thereof

#61
20170058190
2017-03-02

Proppants for hydraulic fracturing technologies

#62
20160347990
2016-12-01

Foam-forming surfactant compositions

#63
20160319184
2016-11-03

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

#64
20160312108
2016-10-27

Hydrocarbon-based fracturing fluid composition, system, and method

#65
20160257879
2016-09-08

Foam assisted liquid removal using alcohol ether sulfonates

#66
20160230062
2016-08-11

Methods and systems for sequestering carbon dioxide in a subterranean formation

#67
20160194551
2016-07-07

Method for removing bitumen to enhance formation permeability

#68
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

#69
20160122628
2016-05-05

Y-grade NGL stimulation fluids

#70
20160075932
2016-03-17

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

#71
20160068736
2016-03-10

REVERSIBLE FOAMED WELLBORE FLUIDS

#72
20150307772
2015-10-29

Compositions and methods for making aqueous slurry

#73
20150232744
2015-08-20

Foamed chelating agent treatment fluids for use in subterranean matrix stimulations and subterranean and surface cleanout operations

#74
20150148268
2015-05-28

Foamers for downhole injection

#75
20150126417
2015-05-07

Surfactant composition

#76
20150107832
2015-04-23

Process to produce oil or gas from a subterranean formation using a chelating agent

#77
20150080271
2015-03-19

Foam or viscosified composition containing a chelating agent

#78
20150075776
2015-03-19

OPTIMIZATION OF BIOGENIC METHANE PRODUCTION FROM HYDROCARBON SOURCES

#79
20150068751
2015-03-12

Siloxane surfactant additives for oil and gas applications

#80
20140345878
2014-11-27

Syntactic foam frac ball and methods of using same

#81
20140323362
2014-10-30

Defoamer formulation and methods for making and using same

#82
20140216739
2014-08-07

Heat scavenging method for thermal recovery process

#83
20130341020
2013-12-26

Methods of using nanoparticle suspension aids in subterranean operations

#84
20130331301
2013-12-12

Methods for using complementary surfactant compositions

#85
20130098622
2013-04-25

Downhole polymer foam applications

#86
20130081820
2013-04-04

HOSTILE ENVIRONMENT STABLE COMPOSITIONS AND DRILLING AND FRACTURING FLUIDS CONTAINING SAME

#87
20130045898
2013-02-21

POLYESTER AMIDE FOAMERS

#88
20130045052
2013-02-21

System and method for treating an excavation activity

#89
20130029883
2013-01-31

GAS GENERATING SYSTEM FOR STIMULATION AND DELIQUIFICATION

#90
20130025869
2013-01-31

Thermally stable, nonionic foaming agent for foam fracturing fluids

#91
20120270758
2012-10-25

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#92
20120220502
2012-08-30

COMPOSITIONS COMPRISING ALKYLALKOXYSULFONATES FOR THE PRODUCTION OF HIGH TEMPERATURE STABLE FOAMS

#93
20120157354
2012-06-21

FRICTION REDUCER

#94
20120125620
2012-05-24

Foamers for downhole injection

#95
20120071370
2012-03-22

Defoamer formulation and methods for making and using same

#96
20120071366
2012-03-22

Complementary surfactant compositions and methods for making and using same

#97
20120037371
2012-02-16

Well servicing fluid

#98
20120006551
2012-01-12

Method of fracturing with phenothiazine stabilizer

#99
20110315383
2011-12-29

GELATION ACCELERATION

#100
20110265997
2011-11-03

VISCOSIFICATION AND FOAMING OF POLYACRYLAMIDES

#101
20110251111
2011-10-13

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

#102
20110240309
2011-10-06

COMPOSITION SUITABLE FOR PRODUCTION OF FOAM EXTINGUISHANTS

#103
20110224109
2011-09-15

Reversible Peptide Surfactants For Oilfield Applications

#104
20110174478
2011-07-21

Apparatus for continuous downhole fluid release and well evaluation

#105
20110155378
2011-06-30

FOAM OPTIMIZATION METHOD FOR DELIQUIFYING WELLS

#106
20110120719
2011-05-26

Proppants for hydraulic fracturing technologies

#107
20110071060
2011-03-24

FOAMERS FOR DOWNHOLE INJECTION

#108
20110071056
2011-03-24

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#109
20110067873
2011-03-24

Use of foam shape memory polymer to transport acid or other wellbore treatments

#110
20100167963
2010-07-01

Well treatment

#111
20100044050
2010-02-25

Fluorinated surfactants and methods of using the same

#112
20100044049
2010-02-25

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

#113
20100044048
2010-02-25

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

#114
20090298719
2009-12-03

Method for treating subterranean formation with enhanced viscosity foam

#115
20090023613
2009-01-22

Polysaccharide treatment fluid and method of treating a subterranean formation

#116
20080305971
2008-12-11

Polysaccharide treatment fluid and method of treating a subterranean formation

#117
20080269080
2008-10-30

Wellbore treatment compositions containing foam extenders and methods of use thereof

#118
20080236815
2008-10-02

Method for continous downhole fluid release and well evaluation

#119
20080200351
2008-08-21

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

#120
20080108526
2008-05-08

Saponified fatty acids as viscosity modifiers for viscoelastic surfactant-gelled fluids

#121
20080081771
2008-04-03

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

#122
20080004187
2008-01-03

Energized fluids and methods of use thereof

#123
20070293404
2007-12-20

Subterranean Treatment Methods using Methanol Containing Foams

#124
20070181307
2007-08-09

Synergistic surfactant compositions for unloading fluids from oil and gas wells

#125
20070129257
2007-06-07

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

#126
20070079963
2007-04-12

Process for foaming a wet hydrocarbon composition

#127
20070042913
2007-02-22

Wellbore treatment compositions containing foam extenders and methods of use thereof

#128
20060260815
2006-11-23

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

#129
20060258543
2006-11-16

Degradable surfactants and methods for use

#130
20060243439
2006-11-02

Method and apparatus for continuous downhole fluid release

#131
20060234870
2006-10-19

Methods and compositions for delaying the release of treatment chemicals

#132
20060178276
2006-08-10

Energized fluids and methods of use thereof

#133
20060166837
2006-07-27

Methods of treating subterranean formations with heteropolysaccharides based fluids

#134
20060166836
2006-07-27

Energized fluids and methods of use thereof

#135
17708672
2023-07-25

Superheated phase changing nanodroplets for hydrocarbon reservoir applications

#136
17553892
2023-05-09

Slow settling micro-proppants for far field stimulation