ClassID:

104358

C09K8/887 - page 2 - 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 containing cross-linking agents

Recent Application in this class:
#301
20110015100
2011-01-20

Method of treating subterranean formations with carboxylated guar derivatives

#302
20100326658
2010-12-30

Method and composition to increase viscosity of crosslinked polymer fluids

#303
20100323929
2010-12-23

Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer

#304
20100319922
2010-12-23

Methods of fracturing subterranean formations using sulfonated gelling agent polymers

#305
20100314115
2010-12-16

Swellable polymer with cationic sites

#306
20100292109
2010-11-18

Swellable polymers with hydrophobic groups

#307
20100288495
2010-11-18

Methods of treating subterranean wells using changeable additives

#308
20100204069
2010-08-12

METHOD OF STIMULATING SUBTERRANEAN FORMATION USING LOW pH FLUID

#309
20100186966
2010-07-29

Method of improving performance and efficiency of wellbore pump for hydrocarbon production

#310
20100184631
2010-07-22

PROVISION OF VISCOUS COMPOSITIONS BELOW GROUND

#311
20100175880
2010-07-15

Method of using crosslinkable brine containing compositions

#312
20100175877
2010-07-15

METHOD OF DESIGNING AND EXECUTING A WELL TREATMENT

#313
20100147515
2010-06-17

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

#314
20100130388
2010-05-27

Method for treating wellbore in a subterranean formation with high density brines and complexed metal crosslinkers

#315
20100126726
2010-05-27

Alkaline β-mannanase containing compositions useful for the hydrolysis of guar in high pH environments and methods related thereto

#316
20100093891
2010-04-15

Self-Viscosifying and Self-Breaking Gels

#317
20100093565
2010-04-15

System, method, and apparatus for utilizing divalent brines in viscosified well treatment fluids

#318
20100056403
2010-03-04

Metal free crosslinking of galactomannan

#319
20100056401
2010-03-04

Partially neutralized polyhydroxy acids for well treatments

#320
20100038086
2010-02-18

Conformance Control Through Stimulus-Responsive Materials

#321
20100022418
2010-01-28

Method and composition to increase viscosity of crosslinked polymer fluids

#322
20100016182
2010-01-21

Method of treating a well with a gel stabilizer

#323
20090227479
2009-09-10

Zirconium-based cross-linking composition for use with high pH polymer solutions

#324
20090221453
2009-09-03

Treatment Fluid With Oxidizer Breaker System and Method

#325
20090205824
2009-08-20

Polymeric microspheres as degradable fluid loss additives in oilfield applications

#326
20090192058
2009-07-30

Method of fracturing with phenothiazine stabilizer

#327
20090192051
2009-07-30

HIGH TEMPERATURE STABILIZER FOR WELL TREATMENT FLUIDS AND METHODS OF USING SAME

#328
20090181865
2009-07-16

Well Treatment Composition Crosslinkers and Uses Thereof

#329
20090151945
2009-06-18

Process to prepare borozirconate solution and use as a cross-linker in hydraulic fracturing fluids

#330
20090131282
2009-05-21

Solid zirconium-based cross-linking agent and use in oil field applications

#331
20090114390
2009-05-07

HIGH TEMPERATURE AQUEOUS-BASED ZIRCONIUM CROSSLINKING COMPOSITION AND USE

#332
20090105097
2009-04-23

Degradable Friction Reducer

#333
20090082228
2009-03-26

Viscosity reduction

#334
20090023615
2009-01-22

Polymer delivery in well treatment applications

#335
20090023614
2009-01-22

Polymer delivery in well treatment applications

#336
20090018036
2009-01-15

CONFORMANCE IMPROVEMENT ADDITIVE, CONFORMANCE TREATMENT FLUID MADE THEREFROM, METHOD OF IMPROVING CONFORMANCE IN A SUBTERRANEAN FORMATION

#337
20080300152
2008-12-04

Methods and compositions for crosslinking polymers with boronic acids

#338
20080280790
2008-11-13

Well treatment with complexed metal crosslinkers

#339
20080280788
2008-11-13

Well treatment with ionic polymer gels

#340
20080234147
2008-09-25

Method of treating subterranean formation with crosslinked polymer fluid

#341
20080182762
2008-07-31

Rheology controlled heterogeneous particle placement in hydraulic fracturing

#342
20080115932
2008-05-22

Method and apparatus for delayed flow or pressure change in wells

#343
20080085843
2008-04-10

Method of treating a subterranean formation with an oil-based composition containing a polysaccharide-based water-superabsorbent material

#344
20080070810
2008-03-20

Methods of preparing degradable materials and methods of use in subterranean formations

#345
20080015120
2008-01-17

Application of degradable polymers in sand control

#346
20070281871
2007-12-06

SELF-HYDRATING, SELF-CROSSLINKING GUAR COMPOSITIONS AND METHODS

#347
20070270316
2007-11-22

Aqueous alcohol well treatment fluid and method of using the same

#348
20070256836
2007-11-08

Methods of treating a subterranean formation with a treatment fluid having surfactant effective to increase the thermal stability of the fluid

#349
20070225175
2007-09-27

Application of degradable polymers in well fluids

#350
20070191233
2007-08-16

Cross-linking composition and method of use

#351
20070187642
2007-08-16

Zirconium cross-linking composition and methods of use

#352
20070114035
2007-05-24

Method and composition of preparing polymeric fracturing fluids

#353
20070089881
2007-04-26

Methods of fracturing formations using quaternary amine salts as viscosifiers

#354
20070062703
2007-03-22

Polymer mixtures for crosslinked fluids

#355
20070062702
2007-03-22

Polymer mixtures for crosslinked fluids

#356
20060278390
2006-12-14

Crosslinkable polymer compositions and associated methods

#357
20060264334
2006-11-23

Non-damaging fracturing fluids and methods for their use

#358
20060247136
2006-11-02

Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods

#359
20060243449
2006-11-02

Acidic treatment fluids comprising scleroglucan and/or diutan and associated methods

#360
20060240995
2006-10-26

Methods of using resins in subterranean formations

#361
20060229213
2006-10-12

Fluids comprising zirconium isopropylamine crosslinking agents and associated methods

#362
20060225884
2006-10-12

Fluids comprising zirconium isopropylamine crosslinking agents and associated methods

#363
20060211580
2006-09-21

Well treating compositions containing water superabsorbent material and method of using the same

#364
20060205607
2006-09-14

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

#365
20060205605
2006-09-14

Well treatment composition crosslinkers and uses thereof

#366
20060196662
2006-09-07

Methods and compositions for servicing fluids comprising derivatized cellulose gelling agents

#367
20060189709
2006-08-24

Polymer Crosslinking System Comprising Soluble Zr(IV), Carbonate and Bicarbonate Ions

#368
20060185850
2006-08-24

Methods of treating subterranean formations using derivatized gelling agents

#369
20060166837
2006-07-27

Methods of treating subterranean formations with heteropolysaccharides based fluids

#370
20060162928
2006-07-27

Process for treating a formation

#371
20060142165
2006-06-29

Methods and compositions for treating subterranean formations using sulfonated gelling agent polymers

#372
20060116295
2006-06-01

Method of delaying the setting time of crosslinked lost circulation control pills

#373
20060047027
2006-03-02

Well treatment fluids containing a multimodal polymer system

#374
20060030493
2006-02-09

Crosslinked treatment fluid compositions and methods

#375
20060003900
2006-01-05

Methods and compositions for crosslinking polymers with boronic acids

#376
20050272612
2005-12-08

Method of fracturing using guar-based well treating fluid

#377
20050269101
2005-12-08

Methods of treating subterranean formations using low-molecular-weight fluids

#378
20050269100
2005-12-08

Methods of treating subterranean formations using low-molecular-weight fluids

#379
20050261139
2005-11-24

Well treatment fluid and methods with oxidized polysaccharide-based polymers

#380
20050137094
2005-06-23

Subterranean formation treatment fluids and methods of using such fluids

#381
20050101491
2005-05-12

Cellulosic suspensions employing alkali formate brines as carrier liquid

#382
20050101490
2005-05-12

Cellulosic suspensions of alkali formate and method of using the same

#383
20050090406
2005-04-28

Methods of preparing and using clean viscous well treating fluids and compositions

#384
20050045326
2005-03-03

Production-enhancing completion methods

#385
20050016733
2005-01-27

Well treatment fluid compositions and methods for their use

#386
20050006091
2005-01-13

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

#387
16396010
2020-02-04

Skid-mounted dispersed particle gel production device, dispersed particle gel and preparation method and use thereof

#388
14483068
2015-07-07

Gelling agent for water shut-off in oil and gas wells