ClassID:

104330

C09K8/602 - 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 containing surfactants

Recent Application in this class:
#301
20170370816
2017-12-28

Method and apparatus for selecting surfactants

#302
20170369769
2017-12-28

Low-energy proppants for downhole operations

#303
20170369759
2017-12-28

Compositions for enhanced oil recovery

#304
20170362495
2017-12-21

Hydrophobized nanoparticles as breaker for viscoelastic surfactant gelled fluids

#305
20170362489
2017-12-21

EMULSIONS CONTAINING ALKYL ETHER SULFATES AND USES THEREOF

#306
20170355897
2017-12-14

Method of mineral oil production

#307
20170349821
2017-12-07

MICROENCAPSULATION OF TREATMENT CHEMICALS FOR USE IN SUBTERRANEAN FORMATIONS

#308
20170342313
2017-11-30

Shear recovery for viscosifying surfactants in stimulation fluids

#309
20170342308
2017-11-30

Fluid efficiency for viscoelastic surfactant based fluids with nanoparticles

#310
20170335179
2017-11-23

Use of olefinic ester compositions in oil and gas fields

#311
20170327733
2017-11-16

High temperature viscoelastic surfactant (VES) fluids comprising polymeric viscosity modifiers

#312
20170327732
2017-11-16

Cationic multiple quaternary ammonium-based surfactants for enhancing production in subterranean formations

#313
20170327731
2017-11-16

Surfactant selection methods for fluid recovery in subterranean formations

#314
20170327722
2017-11-16

High temperature viscoelastic surfactant (VES) fluids comprising nanoparticle viscosity modifiers

#315
20170322132
2017-11-09

Surfactant selection for downhole treatments

#316
20170321109
2017-11-09

VISCOELASTIC SURFACTANT COMPATIBLE ACID CORROSION INHIBITOR AND METHODS OF USING SAME

#317
20170313929
2017-11-02

Internal polymeric breaker for viscoelastic surfactant-based fluids

#318
20170313928
2017-11-02

Anionic-cationic-nonionic surfactant, production and use thereof

#319
20170298710
2017-10-19

Multi-functional surfactant complexes for use in subterranean formations

#320
20170298269
2017-10-19

Hydration of associative polymers

#321
20170292375
2017-10-12

Surfactant selection methods for wetting alteration in subterranean formations

#322
20170292064
2017-10-12

Method of pumping aqueous fluid containing surface modifying treatment agent into a well

#323
20170292062
2017-10-12

Well service fluid composition and method of using microemulsions as flowback aids

#324
20170292057
2017-10-12

Hydrocarbon based carrier fluid

#325
20170275518
2017-09-28

Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells

#326
20170253791
2017-09-07

IMPROVED PERFORMANCE OF CROSSLINKED FRACTURING FLUIDS COMPRISING A NONIONIC SURFACTANT

#327
20170240804
2017-08-24

Foam composition

#328
20170240801
2017-08-24

FRACTURING FLUIDS CONTAINING A VISCOELASTIC SURFACTANT VISCOSIFIER

#329
20170233638
2017-08-17

Use of hexamethylenetetramine intensifier for high temperature emulsified acid system

#330
20170210970
2017-07-27

Composition of biodegradable surfactants for separating impurities in a hydrocarbon

#331
20170210966
2017-07-27

Clay stabilizing and methods of use with quaternary ammonium salts

#332
20170198210
2017-07-13

Composite comprising well treatment agent and/or a tracer adhered onto a calcined substrate of a metal oxide coated core and a method of using the same

#333
20170145285
2017-05-25

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

#334
20170114271
2017-04-27

Subterranean well production saltwater evaporation station with saltwater recycle

#335
20170096597
2017-04-06

FRICTION REDUCTION ENHANCEMENT

#336
20170096594
2017-04-06

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

#337
20170088770
2017-03-30

Friction reducers and well treatment fluids

#338
20170088769
2017-03-30

AQUEOUS GUAR COMPOSITIONS FOR USE IN OIL FIELD AND SLICKWATER APPLICATIONS

#339
20170088766
2017-03-30

NON-DAMAGING BIMODAL STIMULATION COMPOSITION AND METHOD OF USE THEREOF

#340
20170073564
2017-03-16

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

#341
20170058189
2017-03-02

HIGH-PERFORMANCE ECO-FRIENDLY NON-EMULSIFIER

#342
20170037304
2017-02-09

Process for acidizing using retarded acid formulations

#343
20170030819
2017-02-02

Processes and systems for characterizing and optimizing fracturing fluids

#344
20170029687
2017-02-02

Organophilic nanoparticles in direct emulsion systems and methods for their use as wellbore drilling fluids

#345
20170015898
2017-01-19

Environmentally preferable microemulsion composition

#346
20170009130
2017-01-12

Imidazolinium compounds as dual corrosion inhibitors

#347
20170009124
2017-01-12

Stabilizing formation laminae in coal seam wellbores

#348
20160376493
2016-12-29

Process for producing mineral oil using surfactants based on a mixture of C24 guerbet, C26 guerbet, C28 guerbet-containing hydrocarbyl alkoxylates

#349
20160369161
2016-12-22

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

#350
20160369160
2016-12-22

Deactivation and activation of permeability modifiers for use in subterranean formation operations

#351
20160362502
2016-12-15

Phosphonated polysaccharides and gels and process for making same

#352
20160347990
2016-12-01

Foam-forming surfactant compositions

#353
20160341037
2016-11-24

Optimal surfactant design for recovered hydrocarbon enhancement

#354
20160333261
2016-11-17

Enhanced subterranean treatment fluids in ionic water or seawater

#355
20160326425
2016-11-10

Wellbore servicing materials and methods of making and using same

#356
20160312110
2016-10-27

Fracturing fluid

#357
20160304769
2016-10-20

Terpolymer compositions

#358
20160304646
2016-10-20

Surfactant Responsive Emulsion Polymerization Micro-Gels

#359
20160298023
2016-10-13

Fracturing fluids based on associative polymers and on labile surfactants

#360
20160289543
2016-10-06

Compositions of and methods for using hydraulic fracturing fluid for petroleum production

#361
20160280986
2016-09-29

Treatment fluids comprising weakly emulsifying surfactants and associated methods

#362
20160272875
2016-09-22

Amido-functionalized gemini surfactant for fluid control in subterranean formations

#363
20160272870
2016-09-22

Aqueous suspensions of silica additives

#364
20160257879
2016-09-08

Foam assisted liquid removal using alcohol ether sulfonates

#365
20160251568
2016-09-01

COMPOSITIONS FOR ENHANCED OIL RECOVERY

#366
20160251565
2016-09-01

METHOD FOR PRODUCING HYDROCARBON FLUID FROM HYDROCARBON FLUID-RICH SHALE

#367
20160222284
2016-08-04

Injecting polyelectrolyte based sacrificial agents for use in unconventional formations

#368
20160222275
2016-08-04

Wellbore fluid additives of fibrillated fibers and methods of use

#369
20160215202
2016-07-28

Sequential surfactant treatments for enhancing fracturing fluid recovery

#370
20160208591
2016-07-21

Adjusting surfactant concentrations during hyraulic fracturing

#371
20160194552
2016-07-07

High-salt gelling compositions and methods for well treatment

#372
20160194550
2016-07-07

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

#373
20160152888
2016-06-02

Composition and method for gelling fracturing fluids

#374
20160138364
2016-05-19

Wettability altering fluids during downhole operations

#375
20160137910
2016-05-19

Compositions of and methods for using hydraulic fracturing fluid for petroleum production

#376
20160137907
2016-05-19

Wellbore servicing materials and methods of making and using same

#377
20160096989
2016-04-07

Olefinic ester compositions and their use in stimulating hydrocarbon production from a subterranean formation

#378
20160083639
2016-03-24

Multi-functional surfactant complexes for use in subterranean formations

#379
20160075941
2016-03-17

Infused and coated proppant containing chemical treatment agents and methods of using same

#380
20160075934
2016-03-17

Water-in-oil microemulsions for oilfield applications

#381
20160060505
2016-03-03

Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons

#382
20160060504
2016-03-03

Method and materials for hydraulic fracturing with delayed crosslinking of gelling agents

#383
20160053160
2016-02-25

Methods for enhancing propped fracture conductivity

#384
20160024891
2016-01-28

Methods and compositions related to gelled layers in oil and/or gas wells

#385
20160024890
2016-01-28

Methods and compositions related to gelled layers in oil and/or gas wells

#386
20160017210
2016-01-21

Synergistic effect of cosurfactants on the rheological performance of drilling, completion and fracturing fluids

#387
20160017204
2016-01-21

METHODS AND COMPOSITIONS COMPRISING PARTICLES FOR USE IN OIL AND/OR GAS WELLS

#388
20160009982
2016-01-14

Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids

#389
20160009977
2016-01-14

DELAYED ENHANCEMENT OR BREAKING OF VISCOSITY FOR VISCOELASTIC SURFACTANT CONTAINING WELLBORE FLUIDS

#390
20160003018
2016-01-07

Methods and compositions for use in oil and/or gas wells comprising a terpene alcohol

#391
20150368550
2015-12-24

Highly concentrated, water-free amine salts of hydrocarbon alkoxysulfates and use and method using aqueous dilutions of the same

#392
20150361330
2015-12-17

Environmentally friendly stimulation fluids, processes to create wormholes in carbonate reservoirs, and processes to remove wellbore damage in carbonate reservoirs

#393
20150361329
2015-12-17

Highly concentrated, water-free amine salts of hydrocarbon alkoxysulfates and use and method using aqueous dilutions of the same

#394
20150361323
2015-12-17

Treatment fluids for reducing subterranean formation damage

#395
20150354332
2015-12-10

Process for treating subterranean oil-bearing formations comprising carbonate rocks

#396
20150337195
2015-11-26

Surface active additives for oil-based mud filter cake breakers

#397
20150329767
2015-11-19

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

#398
20150322757
2015-11-12

Surfactant composition

#399
20150322334
2015-11-12

Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids

#400
20150315457
2015-11-05

COMPOSITION AND METHOD FOR TREATING SUBTERRANEAN FORMATION

#401
20150315455
2015-11-05

Flash point adjustment of wettability alteration chemicals in hydrocarbon solvents

#402
20150300139
2015-10-22

Method of using sophorolipids in well treatment operations

#403
20150299561
2015-10-22

Method of pumping aqueous fluid containing surface modifying treatment agent into a well

#404
20150292308
2015-10-15

Stimulation of wells in nano-darcy shale formations

#405
20150275634
2015-10-01

Surfactant assisted oil recovery using alcohol ether sulfonates and cationic surfactants

#406
20150252249
2015-09-10

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

#407
20150218432
2015-08-06

Heat removal in drilling and production operations

#408
20150184061
2015-07-02

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

#409
20150159081
2015-06-11

Composition and method for treating subterranean formation

#410
20150141300
2015-05-21

Fluorous additives for use in a fluorous-based treatment fluid

#411
20150068755
2015-03-12

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

#412
20150068744
2015-03-12

Fluid mobility modifiers for increased production in subterranean formations

#413
20150065402
2015-03-05

COMPOUND OF BIODEGRADABLE SURFACTANTS FOR SEPARATING IMPURITIES IN A HYDROCARBON

#414
20150065400
2015-03-05

Composition of biodegradable surfactants for separating impurities in a hydrocarbon

#415
20150060066
2015-03-05

Method of preparing polymer-water emulsion and further settling a sticky polymer material in downhole environment

#416
20150057197
2015-02-26

Use of oil-soluble surfactants as breaker enhancers for VES-gelled fluids

#417
20150007995
2015-01-08

Lubricating compositions for use with downhole fluids

#418
20140378354
2014-12-25

Fracturing fluid composition and method of using same in geological formations

#419
20140364511
2014-12-11

Surfactant responsive micro-gels

#420
20140348887
2014-11-27

Surfactant responsive emulsion polymerized micro-gels

#421
20140345870
2014-11-27

Methods for stimulation and stabilization of subterranean formations

#422
20140341957
2014-11-20

Surfactant responsive dispersion polymerized micro-gels

#423
20140338911
2014-11-20

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

#424
20140338907
2014-11-20

Wellbore servicing materials and methods of making and using same

#425
20140329726
2014-11-06

Polymeric Additives for Enhancement of Treatment Fluids Comprising Viscoelastic Surfactants and Methods of Use

#426
20140305649
2014-10-16

Submicron particles surfactant method for improved oil recovery from subterranean reservoirs

#427
20140303048
2014-10-09

Zeta potential modifiers to decrease the residual oil saturation

#428
20140299325
2014-10-09

Compositions and methods for enhancement of production of liquid and gaseous hydrocarbons

#429
20140284057
2014-09-25

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

#430
20140262288
2014-09-18

SILOXANE SURFACTANT ADDITIVES FOR OIL AND GAS APPLICATIONS

#431
20140262261
2014-09-18

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

#432
20140251624
2014-09-11

Method of servicing a wellbore with an aqueous gel containing a friction reducer

#433
20140163255
2014-06-12

Process for producing mineral oil using surfactants based on CC-containing alkyl propoxy surfactants

#434
20140076572
2014-03-20

Thickened viscoelastic fluids and uses thereof

#435
20140076552
2014-03-20

Treatment fluids comprising magnetic surfactants and methods relating thereto

#436
20140073540
2014-03-13

Acid-in-oil emulsion compositions and methods for treating hydrocarbon-bearing formations

#437
20140060841
2014-03-06

Fluorous additives for use in a fluorous-based treatment fluid

#438
20140057812
2014-02-27

Self-assembling materials for wellbore servicing and methods of using same

#439
20140008062
2014-01-09

Formulation and method of use for exploitation and transport of heavy and extra heavy oil wells

#440
20130331301
2013-12-12

Methods for using complementary surfactant compositions

#441
20130312975
2013-11-28

Process for water wetting oil-wet surfaces

#442
20130264061
2013-10-10

Method for treating hydrocarbon-bearing formations with fluorinated amine

#443
20130261033
2013-10-03

Microemulsion flowback aid composition and method of using same

#444
20130252857
2013-09-26

Completion fluid

#445
20130233559
2013-09-12

Surfactant Additives for Stimulating Subterranean Formation During Fracturing Operations

#446
20130180723
2013-07-18

Fracturing fluids including amine oxides as flowback aids

#447
20130172218
2013-07-04

COMPOUND OF BIODEGRADABLE SURFACTANTS FOR SEPARATING IMPURITIES IN A HYDROCARBON

#448
20130153234
2013-06-20

Slickwater fracturing fluid

#449
20130137610
2013-05-30

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

#450
20130098612
2013-04-25

Process for producing mineral oil using surfactants based on a mixture of C24 guerbet-, C26 guerbet-, C28-guerbet containing hydrocarbyl alkoxylates

#451
20130067999
2013-03-21

Method for selection of surfactants in well stimulation

#452
20130048288
2013-02-28

Working/control fluid for heavy and extra-heavy crude wells

#453
20130046048
2013-02-21

Use of a BTEX-free solvent to prepare stimulation and oilfield production additives

#454
20130029884
2013-01-31

BIOCIDE FORMULATIONS

#455
20130029883
2013-01-31

GAS GENERATING SYSTEM FOR STIMULATION AND DELIQUIFICATION

#456
20130005626
2013-01-03

Surfactant compositions

#457
20120329684
2012-12-27

Polymeric gel system and methods for making and using same in hydrocarbon recovery

#458
20120322700
2012-12-20

Nano-Sized Particles for Stabilizing Viscoelastic Surfactant Fluids

#459
20120318515
2012-12-20

Method of inhibiting or controlling release of well treatment agent

#460
20120310614
2012-12-06

Method and system for predicting the effect of microbes injected into an oil-bearing reservoir

#461
20120305246
2012-12-06

Shear-activated viscoelastic surfactant fluid and method

#462
20120283154
2012-11-08

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

#463
20120283150
2012-11-08

Polymeric additives for enhancement of treatment fluids comprising viscoelastic surfactants and methods of use

#464
20120270758
2012-10-25

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#465
20120247776
2012-10-04

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

#466
20120247759
2012-10-04

Formulation and method of use for exploitation of heavy and extra heavy oil wells

#467
20120241153
2012-09-27

Method of enhancing fracture conductivity

#468
20120220501
2012-08-30

Non-aqueous, acid soluble, high-density completion fluids and process

#469
20120216990
2012-08-30

Heat removal in drilling and production operations

#470
20120202720
2012-08-09

Environmentally friendly stimulation fluids, processes to create wormholes in carbonate reservoirs, and processes to remove wellbore damage in carbonate reservoirs

#471
20120181027
2012-07-19

Viscosified fluids for remediating subterranean damage

#472
20120181019
2012-07-19

Nanohybrid phase interfaces for altering wettability in oil field applications

#473
20120172262
2012-07-05

Fluorosurfactants and treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods

#474
20120157356
2012-06-21

Hydraulic fracturing with slick water from dry blends

#475
20120152535
2012-06-21

Formulation and method of use for stimulation of heavy and extraheavy oil wells

#476
20120111570
2012-05-10

Wellbore treatment compositions comprising hydrophilically modified polymers and nonionic surfactants

#477
20120097393
2012-04-26

Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amphoteric compounds

#478
20120094878
2012-04-19

Non-damaging bimodal stimulation composition and method of use thereof

#479
20120073809
2012-03-29

DIVERSION PILL AND METHODS OF USING THE SAME

#480
20120071366
2012-03-22

Complementary surfactant compositions and methods for making and using same

#481
20120061086
2012-03-15

Method of preparing polymer-water emulsion and further settling a sticky polymer material in downhole environment

#482
20120055676
2012-03-08

Fluid loss control in viscoelastic surfactant fracturing fluids using water soluble polymers

#483
20120055668
2012-03-08

SOLVENTS AND COMPOSITIONS FOR TREATING HYDROCARBON-BEARING FORMATIONS

#484
20120053252
2012-03-01

Fluorinated ethoxylated polyurethanes

#485
20120048548
2012-03-01

Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids

#486
20120000657
2012-01-05

Treatment fluid for wells drilled in oil mud, in the form of a delayed effect water-in-oil emulsion

#487
20110287985
2011-11-24

Methods and systems for treating subterranean wells

#488
20110284228
2011-11-24

Increasing the viscosity of viscoelastic fluids

#489
20110253365
2011-10-20

Methods for removing residual polymer from a hydraulic fracture

#490
20110247823
2011-10-13

Method of contacting hydrocarbon-bearing formations with fluorinated phosphate and phosphonate compositions

#491
20110247822
2011-10-13

Method of contacting hydrocarbon-bearing formations with fluorinated ether compositions

#492
20110245114
2011-10-06

Method of servicing a wellbore with an aqueous gel containing a friction reducer

#493
20110224109
2011-09-15

Reversible Peptide Surfactants For Oilfield Applications

#494
20110220365
2011-09-15

Process for producing mineral oil using surfactants based on CC-containing alkyl propoxy surfactants

#495
20110190530
2011-08-04

Polycationic viscoelastic compositions

#496
20110177985
2011-07-21

Surfactants for Reduction of Water Blocks and/or Gas Condensates and Associated Methods

#497
20110174485
2011-07-21

Treatment fluids for wetting control of multiple rock types and associated methods

#498
20110143970
2011-06-16

VISCOELASTIC FLUIDS CONTAINING HYDROXYETHYL CELLULOSE

#499
20110136704
2011-06-09

Methods of Treating a Hydrocarbon-Bearing Formation, a Well Bore, and Particles

#500
20110130312
2011-06-02

Method of secondary oil recovery using an aminoalkylene phosphonic acid and an amine neutralizing agent

#501
20110114322
2011-05-19

Surfactant based viscoelastic fluids and methods of using the same

#502
20110105369
2011-05-05

WELL TREATMENT FLUIDS CONTAINING A VISCOELASTIC SURFACTANT AND A CROSS-LINKING AGENT COMPRISING A WATER-SOLUBLE TRANSITION METAL COMPLEX

#503
20110094737
2011-04-28

Shear-activated viscoelastic surfactant fluid and method

#504
20110091408
2011-04-21

METHODS OF USING FLUOROALKYL PHOSPHATE COMPOSITIONS

#505
20110083848
2011-04-14

Process for mineral oil production using surfactant mixtures

#506
20110071058
2011-03-24

Composition and method for slickwater application

#507
20110071056
2011-03-24

Degradable Surfactants, Including Degradable Gemini Surfactants, and Associated Methods

#508
20110053812
2011-03-03

Polymeric additives for enhancement of treatment fluids comprising viscoelastic surfactants and methods of use

#509
20110053810
2011-03-03

Fluorosurfactants and treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods

#510
20110030961
2011-02-10

Treatment of Fluids that Increase in Viscosity at or Above a Threshold Temperature and Methods of Formulating and Using Such Fluids

#511
20110021386
2011-01-27

MICROEMULSION TO IMPROVE SHALE GAS PRODUCTION BY CONTROLLING WATER IMBIBITION

#512
20110011136
2011-01-20

WASHING SYSTEM

#513
20110005756
2011-01-13

Use of zeta potential modifiers to decrease the residual oil saturation

#514
20100331223
2010-12-30

Acidic viscosity enhancer for viscoelastic surfactant fluids

#515
20100326658
2010-12-30

Method and composition to increase viscosity of crosslinked polymer fluids

#516
20100314118
2010-12-16

Liquid crystals for drilling, completion and production fluids

#517
20100314113
2010-12-16

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

#518
20100311622
2010-12-09

Polycationic viscoelastic compositions

#519
20100285999
2010-11-11

Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods

#520
20100261624
2010-10-14

Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids

#521
20100261622
2010-10-14

Methods and compositions for fracturing subterranean formations

#522
20100256025
2010-10-07

Viscoelastic surfactants and methods of making and using same

#523
20100252266
2010-10-07

Organic acid treating fluids with viscoelastic surfactants and internal breakers

#524
20100248997
2010-09-30

Treatment and reuse of oilfield produced water for operations in a well

#525
20100234248
2010-09-16

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

#526
20100213409
2010-08-26

Surfactants with a polyethersulfonate structure method for production thereof and use thereof for tertiary crude oil production

#527
20100197531
2010-08-05

Use of oil-soluble surfactants as breaker enhancers for VES-gelled fluids

#528
20100184631
2010-07-22

PROVISION OF VISCOUS COMPOSITIONS BELOW GROUND

#529
20100163234
2010-07-01

Surface-modifying agents for wettability modification

#530
20100152068
2010-06-17

Wellbore treatment fluid

#531
20100113308
2010-05-06

Hydrocarbon fluid compositions and methods for using same

#532
20100101796
2010-04-29

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

#533
20100089580
2010-04-15

Method of enhancing fracture conductivity

#534
20100081586
2010-04-01

Wellbore treatment compositions

#535
20100056402
2010-03-04

Acidic internal breaker for viscoelastic surfactant fluids in brine

#536
20100022418
2010-01-28

Method and composition to increase viscosity of crosslinked polymer fluids

#537
20100016184
2010-01-21

Orthoester-based surfactants and associated methods

#538
20090288825
2009-11-26

Surfactant method for improved oil recovery from subterranean reservoirs

#539
20090286699
2009-11-19

Reversible surfactants and methods of use in subterranean formations

#540
20090281004
2009-11-12

Composition and method for fluid recovery from well

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Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations

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Surfactants for hydrocarbon recovery

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Low residue fluid fracturing system and method of use

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2009-07-30

Friction loss reduction in viscoelastic surfactant fracturing fluids using low molecular weight water-soluble polymers

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Methods and compositions for delayed release of chemicals and particles

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Defoaming methods and compositions

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Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same

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pH Sensitive Emulsion System

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Methods to enhance gas production following a relative-permeability-modifier treatment

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2009-05-07

Methods for manipulation of air flow into aquifers

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2009-05-07

Methods for manipulation of the flow of fluids in subterranean formations

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Addition of zwitterionic surfactant to water soluble polymer to increase the stability of the polymers in aqueous solutions containing salt and/or surfactants

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Method for recovering crude oil from a subterranean formation utilizing a polyphosphate ester

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Use of Nano-Sized Clay Minerals in Viscoelastic Surfactant Fluids

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Viscosified fluids for remediating subterranean damage

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Methods of Using Viscoelastic Surfactant Gelled Fluids to Pre-Saturate Underground Formations

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Internal breakers for viscoelastic surfactant fluids

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Polycationic viscoelastic compositions

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Polymeric gel system and methods for making and using same in hydrocarbon recovery

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Polycationic viscoelastic compositions

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2008-10-09

Polycationic viscoelastic compositions

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Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids

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Defoaming methods and compositions

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Methods and compositions for fracturing subterranean formations

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Surfactant-only microemulsions for cleaning system design and product delivery

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

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Process for oil recovery using mixed surfactant composition

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Methods for using reversible phase oil-based drilling fluid

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Method for breaking the viscosity of polymer-thickened aqueous systems for mineral oil and natural gas exploration

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Method for reducing fluid loss during hydraulic fracturing or sand control treatment

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Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same

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

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Use of anionic surfactants as hydration aid for fracturing fluids

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Friction loss reduction in viscoelastic surfactant fracturing fluids using low molecular weight water-soluble polymers

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Oxidative internal breaker for viscoelastic surfactant fluids

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Acidic internal breaker for viscoelastic surfactant fluids in brine

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2008-02-28

Nano-sized particles for stabilizing viscoelastic surfactant fluids

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Use of oil-soluble surfactants as breaker enhancers for VES-gelled fluids

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Thermoviscoelastic system fluid and well treatment method

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

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Self diverting matrix acid

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Surfactant method for improved oil recovery from fractured reservoirs

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SANDSTONE HAVING A MODIFIED WETTABILITY AND A METHOD FOR MODIFYING THE SURFACE ENERGY OF SANDSTONE

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Powder composition

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2007-07-05

Methods and compositions for diverting acid fluids in wellbores

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Water-based polymers for use as friction reducers in aqueous treatment fluids

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20070125542
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High temperature gellant in low and high density brines

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20070123428
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Subterranean well and oil or gas stream treatment with bis(3-alkoxyalkan-2-ol) sulfides, sulfones, and sulfoxides: new surface active agents

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20070111902
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Methods for using reversible phase oil-based drilling fluid

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20070087940
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Method of using viscoelastic vesicular fluids to enhance productivity of formations

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20070066493
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Orthoester-based surfactants and associated methods

#592
20070066492
2007-03-22

Orthoester-based surfactants and associated methods

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Amine N-oxide based surfactants

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2007-02-08

Prevention of Water and Condensate Blocks in Wells

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

#596
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Compositions and use of mono- and polyenoic acids for breaking VES-gelled fluids

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Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

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Viscoelastic surfactant fluids and associated diverting methods

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Methods of treating subterranean formations with heteropolysaccharides based fluids

#600
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2006-06-22

Self diverting matrix acid