ClassID:

104341

C09K8/70 - 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 for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams

Recent Application in this class:
#301
20140323361
2014-10-30

Treatment of subterranean formations using a composition including a linear triblock copolymer and inorganic particles

#302
20140305649
2014-10-16

Submicron particles surfactant method for improved oil recovery from subterranean reservoirs

#303
20140290945
2014-10-02

Methods of zonal isolation and treatment diversion

#304
20140274817
2014-09-18

Methods and compositions for stimulating the production of hydrocarbons from subterranean formations

#305
20140262295
2014-09-18

Encapsulated proppants

#306
20140251626
2014-09-11

Method of enhancing the complexity of a fracture network within a subterranean formation

#307
20140178324
2014-06-26

Compositions with pH responsive copolymer containing MAEP and/or MAHP and method for using same

#308
20140171345
2014-06-19

Well treatment composites for use in well treatment fluids

#309
20140144643
2014-05-29

Water-in-oil emulsion composition and method of treating subterranean formation using same

#310
20140131040
2014-05-15

PROPPANT PILLAR PLACEMENT IN A FRACTURE WITH HIGH SOLID CONTENT FLUID

#311
20140116711
2014-05-01

Expanded wellbore servicing materials and methods of making and using same

#312
20140090844
2014-04-03

Swellable elastomer and its use in acidizing or matrix stimulation

#313
20140076565
2014-03-20

Thermally-activated, high temperature particulate suspending agents and methods relating thereto

#314
20140054035
2014-02-27

Methods for propping fractures using proppant-laden aggregates and shear-thickening fluids

#315
20140045731
2014-02-13

Equipment for preparing curved fibers

#316
20130341023
2013-12-26

Use of metal silicides in hydrocarbon production and transportation

#317
20130338048
2013-12-19

Breakers for gelled fracturing fluids

#318
20130327527
2013-12-12

Method to enhance fiber bridging

#319
20130324444
2013-12-05

SYSTEM AND METHOD FOR DELIVERING TREATMENT FLUID

#320
20130308414
2013-11-21

Automatic flow control in mixing fracturing gel

#321
20130306321
2013-11-21

LIQUEFIED INDUSTRIAL GAS BASED SOLUTION IN HYDRAULIC FRACTURING

#322
20130306317
2013-11-21

Degradable polymer and legume particulates for well treatment

#323
20130288934
2013-10-31

Composite Solids System to Prepare Polymer Solutions for Hydraulic Fracturing Treatments

#324
20130237461
2013-09-12

Delivery of particulate material below ground

#325
20130220608
2013-08-29

MODIFIED PARTICULATE WEIGHTING AGENTS AND METHODS OF USING THE SAME

#326
20130196883
2013-08-01

Cellulose nanowhiskers in well services

#327
20130192838
2013-08-01

Non-hydraulic fracturing systems, methods, and processes

#328
20130137609
2013-05-30

APHRON-CONTAINING FRACTURING FLUID

#329
20130133887
2013-05-30

Methods for initiating new fractures in a completed wellbore having existing fractures present

#330
20130126163
2013-05-23

METHOD OF FRACTURING WITH APHRON CONTAINING FLUIDS

#331
20130105167
2013-05-02

Method for enhancing fracture conductivity

#332
20130090270
2013-04-11

Method to complex metals in aqueous treating fluids for VES-gelled fluids

#333
20130056205
2013-03-07

Systems, materials, and methods for recovering material from bedrock using supercritical argon compositions

#334
20130035265
2013-02-07

Methods for treating fibers

#335
20130035263
2013-02-07

Agent and composition for oilfield applications

#336
20130023448
2013-01-24

Methods for Treating Hydrocarbon-Servicing Fluids and Wastewater and Fluids Produced Using the Same

#337
20120325473
2012-12-27

CATALYTIC POLYMER BEAD COMPOSITIONS; PROCESSIING FOR THEIR PRODUCTION; AND THEIR USE IN GENERATING AND EXTRACTING NATURAL GAS, LIGHT CRUDE OIL, OR SEQUENCES OR MIXTURES THEREOF

#338
20120325472
2012-12-27

Heterogeneous proppant placement in a fracture with removable extrametrical material fill

#339
20120305255
2012-12-06

Method of treating the near-wellbore zone of the reservoir

#340
20120305245
2012-12-06

Methods to improve stability of high solid content fluid

#341
20120285692
2012-11-15

Methods of zonal isolation and treatment diversion

#342
20120283148
2012-11-08

Methods and Compositions for Hydrocarbon-Based Crosslinking Additives with Non-Detectable BTEX Levels

#343
20120270758
2012-10-25

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#344
20120267105
2012-10-25

Control of particulate entrainment by fluids

#345
20120252706
2012-10-04

Method of using composites in the treatment of wells

#346
20120247776
2012-10-04

Hydrocarbon-based fracturing fluid compositions, methods of preparation and methods of use

#347
20120247764
2012-10-04

Proppant pillar placement in a fracture with high solid content fluid

#348
20120245061
2012-09-27

Enhancing drag reduction properties of slick water systems

#349
20120245060
2012-09-27

Cross-linkers for hydraulic fracturing fluid

#350
20120241158
2012-09-27

Radical trap in oil and gas stimulation operations

#351
20120208729
2012-08-16

Polymeric acid precursor compositions and methods

#352
20120190596
2012-07-26

Mutual solvent-soluble and/or alcohol blends-soluble particles for viscoelastic surfactant fluids

#353
20120184469
2012-07-19

Stimulated Liquid-Sensitive Subterranean Formations

#354
20120181033
2012-07-19

Nanohybrid phase interfaces for foaming in oil field applications

#355
20120181019
2012-07-19

Nanohybrid phase interfaces for altering wettability in oil field applications

#356
20120175120
2012-07-12

METHOD FOR INTERVENTION OPERATIONS IN SUBSURFACE HYDROCARBON FORMATIONS

#357
20120168165
2012-07-05

METHOD FOR INTERVENTION OPERATIONS IN SUBSURFACE HYDROCARBON FORMATIONS

#358
20120160499
2012-06-28

Process for transporting fracture (“frac”) fluid additives to oil and gas wells utilizing ion exchange resin

#359
20120138290
2012-06-07

METHODS TO STIMULATE BIOGENIC METHANE PRODUCTION FROM HYDROCARBON-BEARING FORMATIONS

#360
20120132421
2012-05-31

Hydrolyzable particle compositions, treatment fluids and methods

#361
20120118566
2012-05-17

Fracturing systems and methods utilyzing metacritical phase natural gas

#362
20120111563
2012-05-10

METHODS TO DELIVER FLUIDS ON A WELL SITE WITH VARIABLE SOLIDS CONCENTRATION FROM SOLID SLURRIES

#363
20120048557
2012-03-01

Delivery of particulate material below ground

#364
20120048555
2012-03-01

Delivery of particulate material below ground

#365
20120048554
2012-03-01

Delivery of particulate material below ground

#366
20120048549
2012-03-01

Polymer Emulsions And Well Treatment Fluids

#367
20120048548
2012-03-01

Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids

#368
20120037371
2012-02-16

Well servicing fluid

#369
20120012316
2012-01-19

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

#370
20120006549
2012-01-12

Well servicing fluid

#371
20110319302
2011-12-29

Method of treating a wellbore at high temperature in contact with carbon dioxide

#372
20110319301
2011-12-29

Polymer delivery in well treatment applications

#373
20110312858
2011-12-22

COMPOSITION AND METHODS FOR OILFIELD APPLICATION

#374
20110312857
2011-12-22

Drilling, drill-in and completion fluids containing nanoparticles for use in oil and gas field applications and methods related thereto

#375
20110297382
2011-12-08

Process for transporting fracture (“FRAC”) fluid additives to oil and gas wells utilizing ion exchange resin

#376
20110272156
2011-11-10

Hydraulic fracturing

#377
20110257050
2011-10-20

Dry blend fracturing fluid additives

#378
20110253366
2011-10-20

Curable fiber

#379
20110237467
2011-09-29

NANOPARTICLE-DENSIFIED COMPLETION FLUIDS

#380
20110198089
2011-08-18

METHODS TO REDUCE SETTLING RATE OF SOLIDS IN A TREATMENT FLUID

#381
20110196125
2011-08-11

Degradable Polymers for Hydrocarbon Extraction

#382
20110192615
2011-08-11

Degradable Polymers for Hydrocarbon Extraction

#383
20110192606
2011-08-11

Degradable Polymers for Hydrocarbon Extraction

#384
20110192605
2011-08-11

Degradable Polymers for Hydrocarbon Extraction

#385
20110186297
2011-08-04

Applications of smart fluids in well service operations

#386
20110168395
2011-07-14

Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations

#387
20110136703
2011-06-09

Compositions for Stimulating Liquid-Sensitive Subterranean Formations

#388
20110114322
2011-05-19

Surfactant based viscoelastic fluids and methods of using the same

#389
20110105370
2011-05-05

BREAKERS FOR GELLED FRACTURING FLUIDS

#390
20110100634
2011-05-05

Downhole chemical delivery system and method

#391
20110092696
2011-04-21

High performance low residue guar for hydraulic fracturing and other applications

#392
20110082058
2011-04-07

Method for preparing curved fibers

#393
20110077445
2011-03-31

Generating natural gas from heavy hydrocarbons

#394
20110071056
2011-03-24

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#395
20110053813
2011-03-03

Methods to reduce settling rate of solids in a treatment fluid

#396
20110028354
2011-02-03

Method of Stimulating Subterranean Formation Using Low pH Fluid Containing a Glycinate Salt

#397
20100323931
2010-12-23

STABILISED EMULSIONS

#398
20100288500
2010-11-18

Fiber aggregate

#399
20100282468
2010-11-11

FRACTURING FLUID COMPOSITIONS COMPRISING SOLID EPOXY PARTICLES AND METHODS OF USE

#400
20100270023
2010-10-28

Methods and compositions for packing void spaces and stabilizing formations surrounding a wellbore

#401
20100267593
2010-10-21

Control of particulate entrainment by fluids

#402
20100263870
2010-10-21

METHODS OF CONTACTING AND/OR TREATING A SUBTERRANEAN FORMATION

#403
20100263866
2010-10-21

Multifunctional particles for downhole formation treatments

#404
20100252262
2010-10-07

Methods using low concentrations of gas bubbles to hinder proppant settling

#405
20100216672
2010-08-26

Treatment fluids comprising relative permeability modifiers and methods of use

#406
20100204069
2010-08-12

METHOD OF STIMULATING SUBTERRANEAN FORMATION USING LOW pH FLUID

#407
20100200234
2010-08-12

In situ conversion of heavy hydrocarbons to catalytic gas

#408
20100197526
2010-08-05

Method for making particulate slurries and particulate slurry compositions

#409
20100184631
2010-07-22

PROVISION OF VISCOUS COMPOSITIONS BELOW GROUND

#410
20100181065
2010-07-22

Fluid loss additive and breaking agent

#411
20100175875
2010-07-15

Squeeze process for reactivation of well treatment fluids containing a water-insoluble adsorbent

#412
20100167963
2010-07-01

Well treatment

#413
20100101796
2010-04-29

Hydrocarbon-based fracturing fluid compositions, methods of preparation and methods of use

#414
20100096139
2010-04-22

Method for Intervention Operations in Subsurface Hydrocarbon Formations

#415
20100089581
2010-04-15

Methods for treating a subterranean formation by introducing a treatment fluid containing a proppant and a swellable particulate and subsequently degrading the swellable particulate

#416
20100032171
2010-02-11

Supercritical pentane as an extractant for oil shale

#417
20100018710
2010-01-28

FRACTURING FLUID COMPOSITIONS, METHODS OF PREPARATION AND METHODS OF USE

#418
20100004146
2010-01-07

Leak-Off Control Agent

#419
20090314488
2009-12-24

Electrically and/or magnetically active coated fibres for wellbore operations

#420
20090286703
2009-11-19

Mutual solvent-soluble and/or alcohol blends-soluble particles for viscoelastic surfactant fluids

#421
20090286699
2009-11-19

Reversible surfactants and methods of use in subterranean formations

#422
20090266765
2009-10-29

Methods for recharging nanoparticle-treated beds

#423
20090255677
2009-10-15

Micro-crosslinked gels and associated methods

#424
20090247430
2009-10-01

Elongated particle breakers in low pH fracturing fluids

#425
20090176667
2009-07-09

Expandable particulates and methods of their use in subterranean formations

#426
20090176665
2009-07-09

Self-degrading fibers and associated methods of use and manufacture

#427
20090137432
2009-05-28

pH Sensitive Emulsion System

#428
20090131284
2009-05-21

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

#429
20090124522
2009-05-14

Cement compositions and methods utilizing nano-hydraulic cement

#430
20090071653
2009-03-19

COMPOSITION AND METHOD FOR CLEANING FORMATION FACES

#431
20090038855
2009-02-12

Variable density fluids and methods of use in subterranean formations

#432
20090038799
2009-02-12

System, Method, and Apparatus for Combined Fracturing Treatment and Scale Inhibition

#433
20090023615
2009-01-22

Polymer delivery in well treatment applications

#434
20090023614
2009-01-22

Polymer delivery in well treatment applications

#435
20090014179
2009-01-15

In situ conversion of heavy hydrocarbons to catalytic gas

#436
20080280786
2008-11-13

DEFOAMER/ANTIFOAMER COMPOSITIONS AND METHODS OF USING SAME

#437
20080200352
2008-08-21

Degradable material assisted diversion or isolation

#438
20080194431
2008-08-14

Crosslinked polymer solutions and methods of use

#439
20080190610
2008-08-14

Fracture Clean up Method

#440
20080182762
2008-07-31

Rheology controlled heterogeneous particle placement in hydraulic fracturing

#441
20080149335
2008-06-26

Activation mechanism applicable for oilfield chemicals products

#442
20080119374
2008-05-22

Polymeric acid precursor compositions and methods

#443
20080115935
2008-05-22

IN SITU CONVERSION OF HEAVY HYDROCARBONS TO CATALYTIC GAS

#444
20080108526
2008-05-08

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

#445
20080039347
2008-02-14

Treatment fluids comprising clarified xanthan and associated methods

#446
20080027157
2008-01-31

Degradable particulates and associated methods

#447
20080026961
2008-01-31

Well cementing slurries containing fibers

#448
20080026960
2008-01-31

Degradable particulates and associated methods

#449
20080026955
2008-01-31

Degradable particulates and associated methods

#450
20080009423
2008-01-10

Self-degrading fibers and associated methods of use and manufacture

#451
20070238623
2007-10-11

Degradable particulates as friction reducers for the flow of solid particulates and associated methods of use

#452
20070204996
2007-09-06

Treatment fluids comprising friction reducers and antiflocculation additives and associated methods

#453
20070204991
2007-09-06

Liquified petroleum gas fracturing system

#454
20070197400
2007-08-23

Powder composition

#455
20070173417
2007-07-26

Porous composites containing hydrocarbon-soluble well treatment agents and methods for using the same

#456
20070155630
2007-07-05

Compositions for stimulating liquid-sensitive subterranean formations

#457
20070151729
2007-07-05

Methods of stimulating liquid-sensitive subterranean formations

#458
20070131423
2007-06-14

Method of extracting hydrocarbons

#459
20070117723
2007-05-24

Bromine-based sulfamate stabilized breaker composition and process

#460
20070087941
2007-04-19

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

#461
20070037713
2007-02-15

Methods and compositions for reducing the viscosity of treatment fluids used in subterranean operations

#462
20070034376
2007-02-15

Methods and compositions for reducing the viscosity of treatment fluids used in subterranean operations

#463
20060234872
2006-10-19

Low damage treatment fluids and methods of using the same

#464
20060234870
2006-10-19

Methods and compositions for delaying the release of treatment chemicals

#465
20060169449
2006-08-03

Self-degrading fibers and associated methods of use and manufacture

#466
20060157248
2006-07-20

Well treatment with dissolvable polymer

#467
20060124302
2006-06-15

Well treating compositions for slow release of treatment agents and methods of using the same

#468
20060124301
2006-06-15

Method of inhibiting or controlling formation of inorganic scales

#469
20060058198
2006-03-16

Dry blend fracturing fluid additives

#470
20050269087
2005-12-08

Well cementing slurries containing fibers

#471
20050252659
2005-11-17

Degradable additive for viscoelastic surfactant based fluid systems

#472
20050215438
2005-09-29

Polymersome compositions and associated methods of use

#473
20050202978
2005-09-15

Polymer-based, surfactant-free, emulsions and methods of use thereof

#474
20050202977
2005-09-15

Surfactant-free emulsions and methods of use thereof

#475
20050161262
2005-07-28

Variable density treatment fluids and methods of using such fluids in subterranean formations

#476
20050113263
2005-05-26

Differential etching in acid fracturing

#477
20050113262
2005-05-26

Methods of drilling wellbores using variable density fluids comprising coated elastic particles

#478
18755865
2025-09-16

POSS-based hybrid supercritical COthickener and preparation method thereof

#479
18738472
2025-10-14

Methods and compositions for thermally shocking subsurface formations

#480
17446067
2023-08-01

Polyacrylamide drag reducer compositions

#481
16415396
2020-04-21

Methods of inhibiting corrosion with a pyrazine corrosion inhibitor