ClassID:

104304

C09K8/516 - 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 plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material

Recent Application in this class:
#301
20160186044
2016-06-30

Core-shell triggered release systems

#302
20160168965
2016-06-16

Compositions and methods for treating a subterranean formation

#303
20160160108
2016-06-09

Solids-free diverting agents and methods related thereto

#304
20160160106
2016-06-09

Wellbore treatment fluids containing nano-carbohydrate based sheets and methods of using the same

#305
20160137903
2016-05-19

Lost circulation material

#306
20160130497
2016-05-12

Encapsulated internal filter cake breakers with improved release properties

#307
20160122618
2016-05-05

COMPOSITIONS INCLUDING A PARTICULATE BRIDGING AGENT AND FIBERS AND METHODS OF TREATING A SUBTERRANEAN FORMATION WITH THE SAME

#308
20160122617
2016-05-05

Degradable balls for use in subterranean applications

#309
20160115364
2016-04-28

Wellbore servicing compositions and methods of making and using same

#310
20160108306
2016-04-21

Latent curing agent compatible with low pH frac fluids

#311
20160069155
2016-03-10

High strength dissolvable compositions for use in subterranean wells

#312
20160068735
2016-03-10

Compositions and methods for fiber-containing grout

#313
20160068733
2016-03-10

Wellbore fluids comprising mineral particles and methods relating thereto

#314
20160024863
2016-01-28

Preventing fluid loss

#315
20160010424
2016-01-14

Magnetorheological fluids and methods of using same

#316
20150344766
2015-12-03

Enhanced wellbore strengthening solution

#317
20150330197
2015-11-19

Use of an acid soluble or degradable solid particulate and an acid liberating or acid generating composite in the stimulation of a subterranean formation

#318
20150300131
2015-10-22

Self-degradable hydraulic diversion systems and methods for making and using same

#319
20150299557
2015-10-22

Use of organoclay as emulsifier in polymeric gels for water permeability reduction

#320
20150275607
2015-10-01

Method of treating subterranean formation using shrinkable fibers

#321
20150252245
2015-09-10

Swellable compositions for borehole applications

#322
20150252244
2015-09-10

Methods and compositions for using temporary compacted materials as well servicing fluids in a subterranean formation

#323
20150204176
2015-07-23

Methods for increased hydrocarbon recovery through mineralization sealing of hydraulically fractured rock followed by refracturing

#324
20150204161
2015-07-23

Method of improving cleanout of a wellbore

#325
20150184495
2015-07-02

Compressible carbonaceous particulate material and method of making same

#326
20150166872
2015-06-18

Methods for treating a well bore within an underground formation

#327
20150166869
2015-06-18

Enhanced acid soluble wellbore strengthening solution

#328
20150159465
2015-06-11

Methods for minimizing overdisplacement of proppant in fracture treatments

#329
20150159076
2015-06-11

Acid soluble defluidizing pills

#330
20150133346
2015-05-14

Filtrate control agents in solid form

#331
20150126415
2015-05-07

Drilling fluids with nano and granular particles and their use for wellbore strengthening

#332
20150087560
2015-03-26

Polyglycolic acid resin short fibers for use in well treatment fluid

#333
20150083423
2015-03-26

Method for improving isolation of flow to completed perforated intervals

#334
20150068748
2015-03-12

Compositions and methods for diverting injected fluids to achieve improved hydrocarbon fluid recovery

#335
20150051119
2015-02-19

Polyester resin composition and molded article of same

#336
20150041132
2015-02-12

Method of using diverter and proppant mixture

#337
20150041131
2015-02-12

Methods and compositions for using temporary, slow degrading, particulate agents in a subterranean formation

#338
20150027707
2015-01-29

Engineered methods and materials for wellbore strengthening in subterranean operations

#339
20150008044
2015-01-08

Lost circulation drilling fluids comprising elastomeric rubber particles and a method for decreasing whole mud loss using such composition

#340
20140360728
2014-12-11

Degradable composite materials and uses

#341
20140352959
2014-12-04

Diverting systems for use in low temperature well treatment operations

#342
20140326452
2014-11-06

Hydrolyzable particle compositions, treatment fluids and methods

#343
20140323361
2014-10-30

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

#344
20140290945
2014-10-02

Methods of zonal isolation and treatment diversion

#345
20140284053
2014-09-25

Methods and compositions for use in oil and/or gas wells

#346
20140274815
2014-09-18

Modified deformed reinforcement fibers, methods of making, and uses

#347
20140262255
2014-09-18

Methods for improving the sweep efficiency of gas injection

#348
20140138087
2014-05-22

Method of re-fracturing using borated galactomannan gum

#349
20140135237
2014-05-15

Expandable coating for solid particles and associated methods of use in subterranean treatments

#350
20140110177
2014-04-24

Green directional drilling fluid composition

#351
20140100304
2014-04-10

Encapsulated activator and its use to trigger a gelling system by physical means

#352
20140090844
2014-04-03

Swellable elastomer and its use in acidizing or matrix stimulation

#353
20140060843
2014-03-06

Wellbore servicing compositions and methods of making and using same

#354
20140051612
2014-02-20

Swellable article

#355
20140041870
2014-02-13

Method for reducing permeability of a subterranean reservoir

#356
20130341025
2013-12-26

Method of using phthalic and terephthalic acids and derivatives thereof in well treatment operations

#357
20130319670
2013-12-05

METHODS FOR SERVICING SUBTERRANEAN WELLS

#358
20130306317
2013-11-21

Degradable polymer and legume particulates for well treatment

#359
20130296199
2013-11-07

Drilling lost circulation material

#360
20130292123
2013-11-07

Degradable balls for use in subterranean applications

#361
20130292116
2013-11-07

Methods for Controlling Formation Fines Migration

#362
20130244910
2013-09-19

Lost circulation materials and methods of using the same

#363
20130157906
2013-06-20

Nano-sized particle-coated proppants for formation fines fixation in proppant packs

#364
20130137610
2013-05-30

Dual-functional breaker for hybrid fluids of viscoelastic surfactant and polymer

#365
20130133887
2013-05-30

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

#366
20130130947
2013-05-23

Use of composites having deformable core and viscosifying agent coated thereon in well treatment operations

#367
20130126164
2013-05-23

RELEASING ACTIVATORS DURING WELLBORE OPERATIONS

#368
20130123394
2013-05-16

Swellable material using soy spent flakes

#369
20130112414
2013-05-09

Engineered methods and materials for wellbore strengthening in subterranean operations

#370
20130081821
2013-04-04

Reinforcing Amorphous PLA with Solid Particles for Downhole Applications

#371
20130056215
2013-03-07

Disintegrative Particles to Release Agglomeration Agent for Water Shut-Off Downhole

#372
20130035263
2013-02-07

Agent and composition for oilfield applications

#373
20120325471
2012-12-27

ENCAPSULATED MATERIALS AND THEIR USE IN OIL AND GAS WELLS

#374
20120322695
2012-12-20

Methods for controlling lost circulation in a subterranean well and materials there for

#375
20120285695
2012-11-15

DESTRUCTIBLE CONTAINERS FOR DOWNHOLE MATERIAL AND CHEMICAL DELIVERY

#376
20120285692
2012-11-15

Methods of zonal isolation and treatment diversion

#377
20120285691
2012-11-15

Permeability modification and water shut off composition and process

#378
20120285683
2012-11-15

Reducing or stopping the uncontrolled flow of fluid such as oil from a well

#379
20120283155
2012-11-08

Controlling Coal Fines in Coal Bed Operations

#380
20120267112
2012-10-25

WELL SERVICE COMPOSITIONS AND METHODS

#381
20120267102
2012-10-25

Nano-Sized Particles for Formation Fines Fixation

#382
20120247762
2012-10-04

Anti-channeling pack-off particles used in a production section of an oil-gas well, and completion method and production method using such particles

#383
20120245060
2012-09-27

Cross-linkers for hydraulic fracturing fluid

#384
20120211227
2012-08-23

Well treatment compositions and methods utilizing nano-particles

#385
20120205102
2012-08-16

Well treatment

#386
20120202717
2012-08-09

APPLICATION OF DEGRADABLE FIBERS IN INVERT EMULSION FLUIDS FOR FLUID LOSS CONTROL

#387
20120192768
2012-08-02

Lost circulation compositions and associated methods

#388
20120190593
2012-07-26

PERMEABILITY BLOCKING WITH STIMULI-RESPONSIVE MICROCOMPOSITES

#389
20120186494
2012-07-26

Cement compositions and methods utilizing nano-clay

#390
20120184469
2012-07-19

Stimulated Liquid-Sensitive Subterranean Formations

#391
20120181035
2012-07-19

Methods of preparing degradable materials

#392
20120181034
2012-07-19

High temperature temporary diverter and lost circulation material

#393
20120181019
2012-07-19

Nanohybrid phase interfaces for altering wettability in oil field applications

#394
20120178651
2012-07-12

Clay Stabilization With Nanoparticles

#395
20120152538
2012-06-21

Compositions and methods relating to establishing circulation in stand-alone-screens without using washpipes

#396
20120138538
2012-06-07

Rechargeable surface active porous media for removal of organic materials from aqueous fluids

#397
20120132421
2012-05-31

Hydrolyzable particle compositions, treatment fluids and methods

#398
20120108472
2012-05-03

Thermoplastic cellulosic fiber blends as lost circulation materials

#399
20120067581
2012-03-22

MECHANISM FOR TREATING SUBTERANEAN FORMATIONS WITH EMBEDDED ADDITIVES

#400
20120065108
2012-03-15

FLUORINATED POLYMERIC MICROPARTICLES AND USES THEREOF AS FLUID REDUCING ADDITIVES

#401
20120048550
2012-03-01

Methods useful for controlling fluid loss in subterranean formations

#402
20120037368
2012-02-16

CONTROLLED RELEASE PROPPANT

#403
20120031612
2012-02-09

Swellable Elastomer for Water Shut Off in Gravel Pack

#404
20120024530
2012-02-02

Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate

#405
20120000652
2012-01-05

Well treatment fluid

#406
20120000651
2012-01-05

High solids content slurry systems and methods

#407
20110297375
2011-12-08

Composition for borehole treatment

#408
20110290493
2011-12-01

Compositions and methods for completing subterranean wells

#409
20110278011
2011-11-17

MATERIALS AND METHODS FOR TEMPORARILY OBSTRUCTING PORTIONS OF DRILLED WELLS

#410
20110237468
2011-09-29

METHODS FOR BLOCKING UNDERGROUND FORMATIONS

#411
20110237465
2011-09-29

Release of Chemical Systems for Oilfield Applications by Stress Activation

#412
20110220363
2011-09-15

Method of enhancing productivity of a formation with unhydrated borated galactomannan gum

#413
20110214862
2011-09-08

PARTICULATE BRIDGING AGENTS USED FOR FORMING AND BREAKING FILTERCAKES ON WELLBORES

#414
20110183874
2011-07-28

Lost circulation material for oilfield use

#415
20110183873
2011-07-28

Open-hole wellbore lining

#416
20110183871
2011-07-28

Method and composition for curing lost circulation

#417
20110168395
2011-07-14

Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations

#418
20110162854
2011-07-07

Open-hole wellbore lining

#419
20110162845
2011-07-07

Lost circulation compositions and associated methods

#420
20110139454
2011-06-16

Method for providing thixotrophy to fluids downhole

#421
20110136703
2011-06-09

Compositions for Stimulating Liquid-Sensitive Subterranean Formations

#422
20110120713
2011-05-26

Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate

#423
20110120712
2011-05-26

Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate

#424
20110100634
2011-05-05

Downhole chemical delivery system and method

#425
20110100625
2011-05-05

METHOD FOR FORMING AN ISOLATING PLUG

#426
20110098377
2011-04-28

Method of controlling water production through treating particles with RPMS

#427
20110098202
2011-04-28

Swellable compositions for borehole applications

#428
20110053809
2011-03-03

Degradable non-aqueous gel systems

#429
20110048711
2011-03-03

Methods of sonically activating cement compositions

#430
20110036577
2011-02-17

Manipulation of flow underground

#431
20110028358
2011-02-03

Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations

#432
20110000673
2011-01-06

Drilling fluid and method for reducing lost circulation

#433
20110000672
2011-01-06

Clay Stabilization with Nanoparticles

#434
20100323932
2010-12-23

METHODS FOR TREATING A WELL OR THE LIKE

#435
20100323931
2010-12-23

STABILISED EMULSIONS

#436
20100319915
2010-12-23

Application of degradable fibers in invert emulsion fluids for fluid loss control

#437
20100314113
2010-12-16

Dual-functional breaker for hybrid fluids of viscoelastic surfactant and polymer

#438
20100314108
2010-12-16

Dual-function nano-sized particles

#439
20100307747
2010-12-09

Engineered fibers for well treatments

#440
20100298175
2010-11-25

Lost circulation material for oilfield use

#441
20100286000
2010-11-11

Nano-sized particle-coated proppants for formation fines fixation in proppant packs

#442
20100252264
2010-10-07

Method of treating a subterranean formation with combined breaker and fluid loss additive

#443
20100216672
2010-08-26

Treatment fluids comprising relative permeability modifiers and methods of use

#444
20100210481
2010-08-19

Drilling fluids with redispersible polymer powders

#445
20100193244
2010-08-05

Drilling fluid additive for reducing lost circulation in a drilling operation

#446
20100193191
2010-08-05

Methods and compositions comprising a dual oil/water-swellable particle

#447
20100184631
2010-07-22

PROVISION OF VISCOUS COMPOSITIONS BELOW GROUND

#448
20100181110
2010-07-22

Green directional drilling fluid composition

#449
20100160187
2010-06-24

Methods and compositions for stabilizing unconsolidated particulates in a subterranean formation

#450
20100152070
2010-06-17

DRILLING LOST CIRCULATION MATERIAL

#451
20100126723
2010-05-27

Fluid loss control

#452
20100065269
2010-03-18

METHOD OF STABILIZING A WELL BORE OF A WELL PENETRATING A SUBTERRANEAN FORMATION

#453
20100056399
2010-03-04

Polyelectrolyte complexes for oil and gas applications

#454
20100032160
2010-02-11

Fluid loss compositions and methods of use for subterranean operations

#455
20100025039
2010-02-04

Cement compositions and methods utilizing nano-clay

#456
20100022419
2010-01-28

Composition and method for recovering hydrocarbon fluids from a subterranean reservoir

#457
20100000734
2010-01-07

Controlling coal fines in coal bed operations

#458
20090321142
2009-12-31

Well Drilling Method for Prevention of Lost Circulation of Drilling Muds

#459
20090314488
2009-12-24

Electrically and/or magnetically active coated fibres for wellbore operations

#460
20090312201
2009-12-17

Nano-Sized Particles for Formation Fines Fixation

#461
20090305915
2009-12-10

SUSPENSION OF CONCENTRATED PARTICULATE ADDITIVES CONTAINING OIL FOR FRACTURING AND OTHER FLUIDS

#462
20090301722
2009-12-10

System, method, and apparatus for injection well clean-up operations

#463
20090294179
2009-12-03

METHOD OF CONTROLLING FLUID LOSS AND MATERIALS USEFUL THEREIN

#464
20090275488
2009-11-05

Methods for increase gas production and load recovery

#465
20090264325
2009-10-22

Compositions comprising at least two different polymeric microparticles and methods for recovering hydrocarbon fluids from a subterranean reservoir

#466
20090264324
2009-10-22

Composition and method for recovering hydrocarbon fluids from a subterranean reservoir

#467
20090264322
2009-10-22

Composition and method for recovering hydrocarbon fluids from a subterranean reservoir

#468
20090264321
2009-10-22

Composition and method for recovering hydrocarbon fluids from a subterranean reservoir

#469
20090260820
2009-10-22

Block copolymers for recovering hydrocarbon fluids from a subterranean reservoir

#470
20090260819
2009-10-22

Compositions and methods for diverting injected fluids to achieve improved hydrocarbon fluid recovery

#471
20090260813
2009-10-22

Method for terminating or reducing water flow in a subterranean formation

#472
20090221452
2009-09-03

Lost circulation material formulation and method of use

#473
20090205829
2009-08-20

Polymeric microspheres as degradable fluid loss additives in oilfield applications

#474
20090205824
2009-08-20

Polymeric microspheres as degradable fluid loss additives in oilfield applications

#475
20090192053
2009-07-30

Methods and compositions for delayed release of chemicals and particles

#476
20090159287
2009-06-25

In-situ formation of solids for well completions and zonal isolation

#477
20090159267
2009-06-25

Methods and materials for subterranean fluid forming barriers in materials surrounding wells

#478
20090143255
2009-06-04

Methods and Compositions for Improving Well Bore Stability in Subterranean Formations

#479
20090114450
2009-05-07

Controlled variable density fluid for wellbore operations

#480
20090107673
2009-04-30

Nano-sized particle-coated proppants for formation fines fixation in proppant packs

#481
20090099047
2009-04-16

Fusing materials for prevention of lost circulation

#482
20090090514
2009-04-09

Open-hole wellbore lining

#483
20090062157
2009-03-05

Methods and compositions related to the degradation of degradable polymers involving dehydrated salts and other associated methods

#484
20090038855
2009-02-12

Variable density fluids and methods of use in subterranean formations

#485
20080261834
2008-10-23

Method and composition for treatment of a well

#486
20080248308
2008-10-09

Method of making graphite-coated particulate materials

#487
20080220995
2008-09-11

Suspension of concentrated particulate additives containing oil for fracturing and other fluids

#488
20080200352
2008-08-21

Degradable material assisted diversion or isolation

#489
20080182763
2008-07-31

Pumpable multiple phase compositions for controlled release applications downhole

#490
20080156492
2008-07-03

Wellbore system extending through a salt layer

#491
20080149335
2008-06-26

Activation mechanism applicable for oilfield chemicals products

#492
20080142220
2008-06-19

Fluid loss control agent with triggerable removal mechanism

#493
20080139417
2008-06-12

Method of preventing or reducing fluid loss in subterranean formations

#494
20080139416
2008-06-12

Fluid loss control and well cleanup methods

#495
20080139413
2008-06-12

Flexible polymer, particles prepared therefrom and process for preparing the same

#496
20080135251
2008-06-12

Compositions and applications of resins in treating subterranean formations

#497
20080110627
2008-05-15

Well treating method to prevent or cure lost-circulation

#498
20080108524
2008-05-08

Delayed water-swelling materials and methods of use

#499
20080105428
2008-05-08

Methods of servicing wellbore with composition comprising ultra low density thermatek® slurries

#500
20080105167
2008-05-08

Ultra low density cement compositions and methods of making same

#501
20080070812
2008-03-20

Carbon dioxide foamed fluids

#502
20080070810
2008-03-20

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

#503
20080058229
2008-03-06

Polyelectrolyte complexes for oil and gas applications

#504
20080035343
2008-02-14

Tight formation water shut off method with silica gel

#505
20080032901
2008-02-07

Subsurface reactive sealant product

#506
20080026959
2008-01-31

Degradable particulates and associated methods

#507
20080017374
2008-01-24

Methods and materials for subterranean fluid forming barriers in materials surrounding wells

#508
20070298977
2007-12-27

Degradable particulate generation and associated methods

#509
20070272409
2007-11-29

Energized fluid for generating self-cleaning filter cake

#510
20070244013
2007-10-18

Drilling fluid and method for reducing lost circulation

#511
20070209794
2007-09-13

Coated plastic beads and methods of using same to treat a wellbore or subterranean formation

#512
20070204989
2007-09-06

Preformed particle gel for conformance control in an oil reservoir

#513
20070187099
2007-08-16

Methods and compositions for sealing fractures, voids, and pores of subterranean rock formations

#514
20070173418
2007-07-26

Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control

#515
20070169936
2007-07-26

Compositions and methods for treating lost circulation

#516
20070155630
2007-07-05

Compositions for stimulating liquid-sensitive subterranean formations

#517
20070151729
2007-07-05

Methods of stimulating liquid-sensitive subterranean formations

#518
20070111899
2007-05-17

Pre-engineered pills for the improvement of drilling muds

#519
20070056730
2007-03-15

Well treating method to prevent or cure lost-circulation

#520
20070054121
2007-03-08

Graphite-coated particulate materials

#521
20070044966
2007-03-01

Methods of forming acid particle based packers for wellbores

#522
20060266522
2006-11-30

Methods useful for controlling fluid loss during sand control operations

#523
20060162928
2006-07-27

Process for treating a formation

#524
20060157248
2006-07-20

Well treatment with dissolvable polymer

#525
20060157238
2006-07-20

Inhibiting breakthrough of driving fluid via a permeable geological layer into an oil production well

#526
20060137875
2006-06-29

Methods useful for controlling fluid loss in subterranean formations

#527
20060124302
2006-06-15

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

#528
20060124301
2006-06-15

Method of inhibiting or controlling formation of inorganic scales

#529
20060111521
2006-05-25

Silicone resin for drilling fluid loss control

#530
20060111247
2006-05-25

Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control

#531
20060096759
2006-05-11

Methods and compositions for controlling lost circulation in subterranean operations

#532
20060084580
2006-04-20

Methods of generating a gas in a plugging composition to improve its sealing ability in a downhole permeable zone

#533
20050284641
2005-12-29

Controlled variable density fluid for wellbore operations

#534
20050261137
2005-11-24

Methods and fluid compositions for depositing and removing filter cake in a well bore

#535
20050217852
2005-10-06

Method of sealing subterranean zones

#536
20050199396
2005-09-15

Methods useful for controlling fluid loss in subterranean treatments

#537
20050167105
2005-08-04

Contained micro-particles for use in well bore operations

#538
20050159559
2005-07-21

Method for scale inhibition in oil wells

#539
20050126781
2005-06-16

Methods of generating gas in well treating fluids

#540
20050124500
2005-06-09

Carbon dioxide foamed fluids

#541
20050113260
2005-05-26

Drilling fluids

#542
20050107263
2005-05-19

Pumpable multiple phase compositions for controlled release applications downhole

#543
20050051363
2005-03-10

Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control

#544
20050028976
2005-02-10

Compositions and methods for controlling the release of chemicals placed on particulates

#545
20050006095
2005-01-13

Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures

#546
20050003967
2005-01-06

Colloidal and colloidal-like systems in aqueous, clay-based fluids

#547
17727063
2023-01-03

Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof

#548
17710011
2023-06-20

Systems and methods in which colloidal silica gel is used to seal a leak in or near a packer disposed in a tubing-casing annulus

#549
17511400
2022-07-26

Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof

#550
16751630
2020-09-01

Composite temperature resistance gel plugging agent, preparation method thereof and use thereof in profile control and water plugging of ultra-deepth reservoir

#551
16276027
2019-10-15

Oil-soluble coated particle flow modifier for fractured-vuggy carbonate reservoir and preparation method and use thereof