ClassID:

104360

C09K8/905 - 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 based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose Biopolymers

Recent Application in this class:
#1
20240401098
2024-12-05

SCALABLE PROCESS FOR ON-SITE BIOPOLYMER PRODUCTION FOR ENHANCED OIL RECOVERY PROJECTS

#2
20240384162
2024-11-21

SILICA-ENCAPSULATED TRACERS FOR USE IN FRACTURING FLUIDS AND METHODS OF PREPARATION AND ETCHING THEREOF

#3
20240336831
2024-10-10

Liquid suspension composition for wellbore operations, and methods of making and using same

#4
20230020371
2023-01-19

Storable liquid suspension of hollow particles

#5
20220363983
2022-11-17

STABLE NON-AQUEOUS SUSPENSIONS OF WATER-SOLUBLE POLYSACCHARIDES, AND METHODS FOR TREATING OIL AND/OR GAS WELLS WITH A FRACTURING FLUID COMPRISING SUCH AND WATER

#6
20220220367
2022-07-14

Salt tolerant friction reducer

#7
20220220364
2022-07-14

Decreasing proppant embedment with amine-functionalized polysaccharides

#8
20210277303
2021-09-09

Storable liquid suspension of hollow particles

#9
20210238471
2021-08-05

Hydrocarbon formation treatment micellar solutions

#10
20210139766
2021-05-13

Decreasing proppant embedment with amine-functionalized polysaccharides

#11
20210009892
2021-01-14

BETA-GLUCAN COMPOSITIONS INCLUDING SURFACTANT

#12
20200131421
2020-04-30

Nanocelluloses and biogums for viscosity modification

#13
20200123435
2020-04-23

Brine resistant silica sol

#14
20190382645
2019-12-19

Hydrocarbon formation treatment micellar solutions

#15
20190309213
2019-10-10

In-situ hydrogen sulfide mitigation

#16
20190241789
2019-08-08

Treatment fluids comprising recycled drilling cuttings and method of use

#17
20190225871
2019-07-25

Brine resistant silica sol

#18
20190202941
2019-07-04

Phosphonated polysaccharides and gels and process for making same

#19
20180362840
2018-12-20

Hydrogels of graft polymers for acid diversion

#20
20180362839
2018-12-20

In situ generation of pH control agents

#21
20180346787
2018-12-06

Modified biopolymers for diversion, conformance, and fluid loss control

#22
20180291261
2018-10-11

Hydrocarbon formation treatment micellar solutions

#23
20180258344
2018-09-13

Subterranean stimulation operations utilizing degradable pre-coated particulates

#24
20170362486
2017-12-21

Biopolymer composite for water-based treatment fluids

#25
20170335177
2017-11-23

PROPPANT MATERIALS FOR ADDITIVE DELIVERY

#26
20170275527
2017-09-28

Composition and method for improved treatment fluid

#27
20170101578
2017-04-13

Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing

#28
20170066961
2017-03-09

Method of breaking metal-crosslinked polymers

#29
20170002261
2017-01-05

LOW MOLECULAR WEIGHT GUAR AS GELLING AGENT ADDITIVE

#30
20160376497
2016-12-29

Enhanced viscosity of polymer solutions in high salinity brines

#31
20160376495
2016-12-29

LIQUID SLURRIES OF MICRON- AND NANO-SIZED SOLIDS FOR USE IN SUBTERRANEAN OPERATIONS

#32
20160298028
2016-10-13

Wellbore servicing materials and methods of making and using same

#33
20160289544
2016-10-06

Method for treating a subterranean formation

#34
20160215602
2016-07-28

Delayed crosslinking composition or reaction product thereof for treatment of a subterranean formation

#35
20160115373
2016-04-28

Method for Improving Guar Hydration

#36
20160083641
2016-03-24

Solids free gellable treatment fluids

#37
20160032700
2016-02-04

COMPOSITIONS AND METHODS FOR TREATING SUBTERRANEAN FORMATIONS

#38
20150369027
2015-12-24

WELL TREATMENT METHOD AND SYSTEM

#39
20150337638
2015-11-26

HYDROCARBON STIMULATION BY ENERGETIC CHEMISTRY

#40
20150275251
2015-10-01

Methods of biosynthesizing bacterial extracellular galactomannan polysaccharides and subunits thereof for use in subterranean formation operations

#41
20150252251
2015-09-10

CROSS-LINKERS FOR HYDRAULIC FRACTURING FLUID

#42
20150247395
2015-09-03

Free-Flowing Aqueous Compositions And Processes For Enhancing The Production Rate Of Mineral Oil And/Or Natural Gas From An Underground Deposit Comprising Mineral Oil And/Or Natural Gas

#43
20150232743
2015-08-20

ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF MULTI-CHAIN POLYMER VISCOSIFIED FLUID

#44
20150203746
2015-07-23

Methods for using polymers in boron-laden fluids

#45
20150197686
2015-07-16

Treatment fluids comprising viscosifying agents and methods of using the same

#46
20150129226
2015-05-14

Thickening of fluids

#47
20150087560
2015-03-26

Polyglycolic acid resin short fibers for use in well treatment fluid

#48
20150060072
2015-03-05

METHODS OF TREATMENT OF A SUBTERRANEAN FORMATION WITH COMPOSITE POLYMERIC STRUCTURES FORMED IN SITU

#49
20150057195
2015-02-26

Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing

#50
20150045260
2015-02-12

Thermal insulating fluids

#51
20140329724
2014-11-06

Crosslinking chitosan for reducing permeability in a well

#52
20140303046
2014-10-09

Wellbore servicing materials and methods of making and using same

#53
20130274149
2013-10-17

FLUIDS AND METHODS INCLUDING NANOCELLULOSE

#54
20130133890
2013-05-30

ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF MULTI-CHAIN POLYMER VISCOSIFIED FLUID

#55
20120325482
2012-12-27

Alkaline persulfate for low-temperature breaking of multi-chain polymer viscosified fluid

#56
20120285688
2012-11-15

Method of well treatment using synthetic polymers

#57
20120277128
2012-11-01

Fluids comprising chitosan crosslinked by titanate

#58
20120273207
2012-11-01

CHITOSAN AS BIOCIDE IN OILFIELD FLUIDS

#59
20120245060
2012-09-27

Cross-linkers for hydraulic fracturing fluid

#60
20120231977
2012-09-13

Thermal insulating fluids

#61
20120227971
2012-09-13

Sulfates and phosphates as allosteric effectors in mannanohydrolase enzyme breakers

#62
20120208726
2012-08-16

COMPOSITION AND METHOD FOR REMOVING FILTER CAKE

#63
20110251111
2011-10-13

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

#64
20110245113
2011-10-06

Method of subterranean formation treatment

#65
20100147515
2010-06-17

Surface modification for cross-linking or breaking interactions with injected fluid

#66
20080081771
2008-04-03

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

#67
20070287638
2007-12-13

Use of dicarbonyl compounds for increasing the thermal stability of biopolymers in the field of oil and gas exploration

#68
20070062703
2007-03-22

Polymer mixtures for crosslinked fluids

#69
20070062702
2007-03-22

Polymer mixtures for crosslinked fluids

#70
20060205607
2006-09-14

Methods of treating subterranean zones and viscous aqueous fluids containing xanthan and a combination cross-linker-breaker

#71
20060166837
2006-07-27

Methods of treating subterranean formations with heteropolysaccharides based fluids

#72
20060081369
2006-04-20

Divinyl sulfone crosslinking agents and methods of use in subterranean applications

#73
20050261138
2005-11-24

Viscosified treatment fluids comprising scleroglucan or diutan and associated methods

#74
20050006091
2005-01-13

Methods of treating subterranean zones and viscous aqueous fluids containing xanthan and a combination cross-linker—breaker

#75
18590758
2025-01-14

Mussel biomimetic heat-resistant and salt-tolerant thickener, preparation method therefor, and gel fracturing fluid, preparation method and use thereof

#76
18352214
2023-12-19

Structural stabilizer for fiber and conventional proppant complex in efficient proppant migration and placement technology of fractured well and preparation method