Patents-Review.com
ClassID:

104995 ⎘

C09K2208/30 - CPC Classification

Classification description:

Aspects relating to compositions of drilling or well treatment fluids Viscoelastic surfactants [VES]

Recent Application in this class:
#1
20260071533
2026-03-12

TREATMENT FLUID SELECTION

 #2
20260042956
2026-02-12

METHOD FOR SINGLE-STAGE TREATMENT OF SILICEOUS SUBTERRANEAN FORMATIONS

 #3
20260042955
2026-02-12

VISCOELASTIC FOAM SYSTEM FOR ACIDIC GAS SWITCH, AND METHOD AND USE FOR IMPROVING THE RECOVERY FACTOR USING THE SAME

 #4
20260008954
2026-01-08

SINGLE-PHASE RETARDED ACID SYSTEMS USING AMINO ACIDS

 #5
20250389171
2025-12-25

DUAL-ACTING DELAYED FILTERCAKE BREAKER FLUID

 #6
20250388804
2025-12-25

Acidizing Fluid with Foam Stabilizing Agent Comprising Antimony Compound

 #7
20250376615
2025-12-11

FILTER CAKE REMOVAL REACTIVE TREATMENT FLUID WITH CHELATING AGENT AND VISCOELASTIC SURFACTANT AND METHODS OF USING SAME

 #8
20250376614
2025-12-11

FILTER CAKE REMOVAL TREATMENT FLUID WITH CHELATING AGENT AND VISCOELASTIC SURFACTANT

 #9
20250368885
2025-12-04

FILTER CAKE REMOVAL USING VISCOELASTIC SURFACTANT

 #10
20250243402
2025-07-31

SLOW REACTING ACIDIZING COMPOSITIONS AND METHODS

 #11
20250215308
2025-07-03

TREATMENT FLUIDS HAVING OIL-SOLUBLE DRAG REDUCING AGENTS FOR WELLBORE OPERATIONS

 #12
20250092304
2025-03-20

WELL CLEAN PREMIUM (WCP-1) SYSTEM AND METHOD

 #13
20240425745
2024-12-26

WELL TREATMENT FLUID HAVING BIODEGRADABLE FLUID LOSS CONTROL AGENT

 #14
20240368971
2024-11-07

VISCOELASTIC SURFACTANTS FOR ACID DIVERSION IN DOWNHOLE OPERATIONS

 #15
20240360356
2024-10-31

SINGLE-PHASE RETARDED ACID SYSTEMS USING AMINO ACIDS

 #16
20240309265
2024-09-19

FOAMED WETTABILITY ALTERATION TREATMENT FOR DEEP CONDENSATE AND WATER BLOCKAGE IN GAS RESERVOIRS

 #17
20240271034
2024-08-15

SINGLE-PHASE RETARDED ACID SYSTEMS USING AMINO ACIDS

 #18
20240182778
2024-06-06

VISCOELASTIC SURFACTANT FORMULATIONS AND USE IN SUBTERRANEAN FORMATIONS

 #19
20240159131
2024-05-16

Method of Enhancing Foam Stability for Stimulation of Low Pressure Reservoirs

 #20
20240133279
2024-04-25

Viscoelastic surfactants for acid diversion in downhole operations

 #21
20240117234
2024-04-11

Acid matrix applications: well stimulation and completion fluids using viscoelastic surfactants and modified additives

 #22
20240018413
2024-01-18

Pillar fracturing

 #23
20240010909
2024-01-11

Pillar fracturing

 #24
20240010908
2024-01-11

Pillar fracturing

 #25
20240010906
2024-01-11

ACID STIMULATION METHODS

 #26
20230366296
2023-11-16

Methods for transporting scale removal agents into a well

 #27
20230183557
2023-06-15

Foamed wettability alteration treatment for deep condensate and water blockage in gas reservoirs

 #28
20230159816
2023-05-25

Fracturing fluids based on viscoelastic surfactants

 #29
20230151263
2023-05-18

Methods and compositions of piperazine-based viscoelastic surfactants as diversion agents

 #30
20230132932
2023-05-04

Gemini surfactant composition and method for treating subterranean rock

 #31
20230022139
2023-01-26

Additives for wellbore cleaning and fluid displacement

 #32
20230019738
2023-01-19

Viscoelastic surfactant-based treatment fluids for use with metal oxide-based cements

 #33
20220340808
2022-10-27

Viscoelastic surfactant fluid composition, and method of using the same

 #34
20220298405
2022-09-22

Self-repairing plugging gel polymer for drilling fluid, preparation method and application thereof, and drilling fluid containing gel polymer

 #35
20220290039
2022-09-15

Viscoelastic-surfactant fracturing fluids having oxidizer

 #36
20220243117
2022-08-04

Viscoelastic-surfactant treatment fluids having oxidizer

 #37
20220195286
2022-06-23

Acid stimulation methods

 #38
20220064519
2022-03-03

VISCOELASTIC COMPOSITIONS FOR MATRIX ACIDIZING

 #39
20220017813
2022-01-20

Pillar fracturing

 #40
20210380873
2021-12-09

Methods and compositions of using viscoelastic surfactants as diversion agents

 #41
20210355371
2021-11-18

Viscoelastic surfactants for self-diverting acid under high temperature and preparation method

 #42
20210269705
2021-09-02

Enhancing propped fracture conductivity in subterranean wells

 #43
20210246767
2021-08-12

Steeply-inclined ultra-thick coal seam gas control method based on binary composite liquid

 #44
20210230474
2021-07-29

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

 #45
20210222057
2021-07-22

Emulsifer with high temperature resistance, low viscosity and low corrosiveness, and emulsified acid system comprising same

 #46
20210198559
2021-07-01

Viscoelastic-surfactant fracturing fluids having oxidizer

 #47
20210198553
2021-07-01

Viscoelastic-surfactant treatment fluids having oxidizer

 #48
20210025275
2021-01-28

Quantification of polymer viscoelastic effects on Sreduction using modified capillary

 #49
20210017445
2021-01-21

Carbonate reservoir filtration-loss self-reducing acid

 #50
20200392395
2020-12-17

Viscoelastic fluids and methods of use

 #51
20200354621
2020-11-12

Viscoelastic surfactant gel for perforation operations

 #52
20200299570
2020-09-24

Increased availability and reduced costs for viscoelastic surfactants used in hydrofracturing fluids

 #53
20200291290
2020-09-17

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

 #54
20200283676
2020-09-10

Tri-cationic viscoelastic surfactant, preparation method and application thereof and clean fracturing fluid

 #55
20200140746
2020-05-07

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

 #56
20200040248
2020-02-06

Breaker Fluids for Wellbore Fluids and Methods of Use

 #57
20200017758
2020-01-16

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

 #58
20200017757
2020-01-16

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

 #59
20190367800
2019-12-05

Lost Circulation Pill for Severe Losses using Viscoelastic Surfactant Technology

 #60
20190367798
2019-12-05

Barrier pills containing viscoelastic surfactant and methods for using the same

 #61
20190322924
2019-10-24

Treatment fluids for stimulation of subterranean formations

 #62
20190322921
2019-10-24

Formation of in-situ activated injection fluids for enhanced oil recovery applications

 #63
20190277123
2019-09-12

Method for treating fractured subterranean formations with controlled solids setting in wellbore

 #64
20190256458
2019-08-22

Synthesis and evaluation of novel amido-amine cationic gemini surfactants containing flexible and rigid spacers

 #65
20190225874
2019-07-25

VES fluids having improved rheology at high temperature and high salinity

 #66
20190211254
2019-07-11

Hydrophobized nanoparticles as breaker for viscoelastic surfactant gelled fluids

 #67
20190203109
2019-07-04

Treatment fluid, method for formation treatment, method for reducing the proppant settling rate in the formation treatment fluid

 #68
20190177603
2019-06-13

ENVIRONMENTALLY ACCEPTABLE SURFACTANT IN AQUEOUS-BASED STIMULATION FLUIDS

 #69
20190136113
2019-05-09

Performance non-emulsifiers that employ branched alcohols and a new high-solvency carrier oil

 #70
20190106619
2019-04-11

Enhanced propped fracture conductivity in subterranean wells

 #71
20190085675
2019-03-21

Pulsed hydraulic fracturing with geopolymer precursor fluids

 #72
20190062621
2019-02-28

Methods of controlling viscosity of acids

 #73
20190055824
2019-02-21

Systems and methods of optimizing Y-grade NGL enhanced oil recovery fluids

 #74
20190055461
2019-02-21

Systems and methods of optimizing Y-Grade NGL unconventional reservoir stimulation fluids

 #75
20190040306
2019-02-07

Enhancing acid fracture conductivity

 #76
20190040294
2019-02-07

Viscoelastic fluid compositions, oil flowable/oil dispersion compositions, and drilling fluid compositions

 #77
20190032463
2019-01-31

Remedial treatment of wells with voids behind casing

 #78
20190031949
2019-01-31

Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency

 #79
20190031945
2019-01-31

Surfactant that changes the wettability of tight sandstone and its preparation method and application

 #80
20190003294
2019-01-03

Phase-change hydraulic fracturing process

 #81
20180362839
2018-12-20

In situ generation of pH control agents

 #82
20180334614
2018-11-22

Enhancing acid fracture conductivity

 #83
20180334613
2018-11-22

Enhancing acid fracture conductivity

 #84
20180334612
2018-11-22

Enhancing acid fracture conductivity

 #85
20180273833
2018-09-27

Increased availability and reduced costs for viscoelastic surfactants used in hydrofracturing fluids

 #86
20180244982
2018-08-30

Diversion acid containing a water-soluble retarding agent and methods of making and using

 #87
20180244981
2018-08-30

On the fly mixing of acids and diversion fluids with water-soluble retarding agents

 #88
20180237686
2018-08-23

METHOD FOR STIMULATION TREATMENT USING POLYMER-SURFACTANT COMBINATION

 #89
20180237685
2018-08-23

Micro-proppant fracturing fluid compositions for enhancing complex fracture network performance

 #90
20180215992
2018-08-02

Delayed breaker for viscoelastic surfactant-based fluids

 #91
20180135403
2018-05-17

Method of using controlled release tracers

 #92
20180134948
2018-05-17

Vertical proppant suspension in hydraulic fractures

 #93
20180105733
2018-04-19

EARLY VISCOSITY ENHANCEMENT OF GELLED OIL

 #94
20180030340
2018-02-01

Methods of preparing treatment fluids comprising anhydrous ammonia for use in subterranean formation operations

 #95
20170362495
2017-12-21

Hydrophobized nanoparticles as breaker for viscoelastic surfactant gelled fluids

 #96
20170342308
2017-11-30

Fluid efficiency for viscoelastic surfactant based fluids with nanoparticles

 #97
20170327733
2017-11-16

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

 #98
20170327722
2017-11-16

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

 #99
20170321109
2017-11-09

VISCOELASTIC SURFACTANT COMPATIBLE ACID CORROSION INHIBITOR AND METHODS OF USING SAME

 #100
20170313929
2017-11-02

Internal polymeric breaker for viscoelastic surfactant-based fluids

 #101
20170240801
2017-08-24

FRACTURING FLUIDS CONTAINING A VISCOELASTIC SURFACTANT VISCOSIFIER

 #102
20170218254
2017-08-03

Low density oil external emulsion with gelled internal phase as a gravel packing carrier fluid

 #103
20170218253
2017-08-03

Method for drilling a well with reduced infiltration

 #104
20170197884
2017-07-13

High strength, operationally robust lost circulation preventative pseudo-crosslinked material

 #105
20170190622
2017-07-06

Drilling method using high density, high strength, acid soluble pseudo-crosslinked, lost circulation preventative material

 #106
20170158953
2017-06-08

Folded or crumpled proppants with increased material strength for hydraulic fracturing, gravel packing and frac packing

 #107
20170152426
2017-06-01

SOLIDS SUSPENSION WITH NANOPARTICLE-ASSOCIATED VISCOELASTIC SURFACTANT MICELLAR FLUIDS

 #108
20170145285
2017-05-25

Fluids containing cellulose fibers and cellulose nanoparticles for oilfield applications

 #109
20170137702
2017-05-18

Method for modification and delivery of proppant during well operations, method for hydraulic fracturing and method for gravel packing

 #110
20170088769
2017-03-30

AQUEOUS GUAR COMPOSITIONS FOR USE IN OIL FIELD AND SLICKWATER APPLICATIONS

 #111
20170088766
2017-03-30

NON-DAMAGING BIMODAL STIMULATION COMPOSITION AND METHOD OF USE THEREOF

 #112
20170051198
2017-02-23

Fluoro-inorganics for well cleaning and rejuvenation

 #113
20170037304
2017-02-09

Process for acidizing using retarded acid formulations

 #114
20170009130
2017-01-12

Imidazolinium compounds as dual corrosion inhibitors

 #115
20160355723
2016-12-08

High density, high strength, acid soluble pseudo-crosslinked, lost circulation preventative material

 #116
20160341017
2016-11-24

Methods Using Viscoelastic Surfactant Based Abrasive Fluids for Perforation and Cleanout

 #117
20160237340
2016-08-18

BRANCHED VISCOELASTIC SURFACTANT FOR HIGH-TEMPERATURE ACIDIZING

 #118
20160194552
2016-07-07

High-salt gelling compositions and methods for well treatment

 #119
20160173699
2016-06-16

Destination device billing according to call recipient

 #120
20160108303
2016-04-21

Viscoelastic surfactants in mixed brines

 #121
20160102242
2016-04-14

TREATMENT FLUID AND METHOD

 #122
20160024370
2016-01-28

Zero-invasion acidic drilling fluid

 #123
20160017210
2016-01-21

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

 #124
20160009982
2016-01-14

Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids

 #125
20160009977
2016-01-14

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

 #126
20150322334
2015-11-12

Viscoelastic surfactant having multiple hydrophobic and hydrophilic groups as fracturing fluids

 #127
20150299559
2015-10-22

Folded or crumpled proppants with increased material strength for hydraulic fracturing, gravel packing and frac packing

 #128
20150275251
2015-10-01

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

 #129
20150225640
2015-08-13

METHODS AND COMPOSITIONS FOR DELAYED RELEASE OF CHEMICALS AND PARTICLES

 #130
20150131789
2015-05-14

Destination device billing according to call recipient

 #131
20150101805
2015-04-16

Viscoelastic surfactant based wellbore fluids and methods of use

 #132
20150072905
2015-03-12

VISCOELASTIC COMPOSITIONS

 #133
20150057197
2015-02-26

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

 #134
20150021098
2015-01-22

BREAKER FLUIDS FOR WELLBORE FLUIDS AND METHODS OF USE

 #135
20150007989
2015-01-08

VISCOELASTIC SURFACTANTS CROSSLINKED WITH DIVALENT IONS AND METHODS FOR MAKING AND USING SAME

 #136
20140364511
2014-12-11

Surfactant responsive micro-gels

 #137
20140329726
2014-11-06

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

 #138
20140315763
2014-10-23

Oil based concentrated slurries and methods for making and using same

 #139
20140262293
2014-09-18

Temperature sensitive viscoelastic well-treatment fluids

 #140
20140251610
2014-09-11

Method of enhancing fracture conductivity

 #141
20140196897
2014-07-17

Oxidative internal breaker system with breaking activators for viscoelastic surfactant fluids

 #142
20140076572
2014-03-20

Thickened viscoelastic fluids and uses thereof

 #143
20140064469
2014-03-06

Destination device billing according to call recipient

 #144
20140054035
2014-02-27

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

 #145
20130341020
2013-12-26

Methods of using nanoparticle suspension aids in subterranean operations

 #146
20130327527
2013-12-12

Method to enhance fiber bridging

 #147
20130310285
2013-11-21

TREATMENT FLUID AND METHOD

 #148
20130306320
2013-11-21

COMPOSITION AND METHOD FOR TREATING CARBONATE RESERVOIRS

 #149
20130274170
2013-10-17

Compositions of viscoelastic surfactant and hydrophobically modified polymer as aqueous thickeners

 #150
20130231269
2013-09-05

Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid

 #151
20130190215
2013-07-25

Breaking viscoelastic surfactant gelled fluids using breaker nanoparticles

 #152
20130137610
2013-05-30

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

 #153
20130130948
2013-05-23

Metallic particle activated oxidative breaking method and system

 #154
20130130943
2013-05-23

Mono- and polyenoic acid and metal particle mixtures for breaking VES-gelled fluids

 #155
20130126163
2013-05-23

METHOD OF FRACTURING WITH APHRON CONTAINING FLUIDS

 #156
20130126158
2013-05-23

Method of using controlled release tracers

 #157
20130123151
2013-05-16

Metallic particle mediated viscosity reduction of viscoelastic surfactants

 #158
20130123150
2013-05-16

METALLIC PARTICLE INDUCED SAPONIFICATION OF FATTY ACIDS AS BREAKERS FOR VISCOELASTIC SURFACTANT-GELLED FLUIDS

 #159
20130098609
2013-04-25

Use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production

 #160
20130090270
2013-04-11

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

 #161
20130032346
2013-02-07

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

 #162
20130025863
2013-01-31

Methods for servicing subterranean wells

 #163
20130000910
2013-01-03

Composition and method relating to the prevention and remediation of surfactant gel damage

 #164
20120329685
2012-12-27

Particles slurried in oil for viscoelastic surfactant gelled fluids

 #165
20120329684
2012-12-27

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

 #166
20120322700
2012-12-20

Nano-Sized Particles for Stabilizing Viscoelastic Surfactant Fluids

 #167
20120305254
2012-12-06

METHODS TO IMPROVE STABILITY OF HIGH SOLID CONTENT FLUID

 #168
20120305246
2012-12-06

Shear-activated viscoelastic surfactant fluid and method

 #169
20120285693
2012-11-15

Controlled release biocides in oilfield applications

 #170
20120285688
2012-11-15

Method of well treatment using synthetic polymers

 #171
20120283154
2012-11-08

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

 #172
20120283150
2012-11-08

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

 #173
20120277129
2012-11-01

Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid

 #174
20120267103
2012-10-25

Degradable fiber systems for stimulation

 #175
20120252707
2012-10-04

METHODS AND COMPOSITIONS TO DELAY VISCOSIFICATION OF TREATMENT FLUIDS

 #176
20120241153
2012-09-27

Method of enhancing fracture conductivity

 #177
20120220503
2012-08-30

COMPOSITION AND METHOD FOR TREATING WELL BORE IN A SUBTERRANEAN FORMATION WITH CROSSLINKERS POLYMER FLUIDS

 #178
20120208729
2012-08-16

Polymeric acid precursor compositions and methods

 #179
20120190596
2012-07-26

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

 #180
20120160500
2012-06-28

Methods for using non-volatile phosphorus hydrocarbon gelling agents

 #181
20120157354
2012-06-21

FRICTION REDUCER

 #182
20120138294
2012-06-07

INTERPOLYMER CROSSLINKED GEL AND METHOD OF USING

 #183
20120135896
2012-05-31

Compositions and methods for controlling fluid loss

 #184
20120134483
2012-05-31

Destination device billing according to call recipient

 #185
20120132422
2012-05-31

INTERPOLYMER CROSSLINKED GEL AND METHOD OF USING

 #186
20120118645
2012-05-17

Methods using well drilling fluids having clay control properties

 #187
20120111564
2012-05-10

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

 #188
20120111563
2012-05-10

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

 #189
20120111562
2012-05-10

Viscoelastic composition with improved viscosity

 #190
20120094878
2012-04-19

Non-damaging bimodal stimulation composition and method of use thereof

 #191
20120073809
2012-03-29

DIVERSION PILL AND METHODS OF USING THE SAME

 #192
20120055676
2012-03-08

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

 #193
20120048548
2012-03-01

Use of nano-sized phyllosilicate minerals in viscoelastic surfactant fluids

 #194
20120024529
2012-02-02

Stimuli-responsive high viscosity pill

 #195
20110287983
2011-11-24

TREATMENT FLUIDS MADE OF HYDANTOIN DERIVATIVES FOR OPERATIONS IN A WELL

 #196
20110284228
2011-11-24

Increasing the viscosity of viscoelastic fluids

 #197
20110284222
2011-11-24

Chelant based system and polylactide resin for acid diversion

 #198
20110269652
2011-11-03

GEMINI SURFACTANTS

 #199
20110253365
2011-10-20

Methods for removing residual polymer from a hydraulic fracture

 #200
20110224110
2011-09-15

Particles in Oil for Viscoelastic Surfactant Gelled Fluids

 #201
20110220360
2011-09-15

APPLICATION OF ALKALINE FLUIDS FOR POST-FLUSH OR POST-TREATMENT OF A STIMULATED SANDSTONE MATRIX

 #202
20110212862
2011-09-01

Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid

 #203
20110210295
2011-09-01

Conductive silica sol composition, and molded article produced using the same

 #204
20110198089
2011-08-18

METHODS TO REDUCE SETTLING RATE OF SOLIDS IN A TREATMENT FLUID

 #205
20110190530
2011-08-04

Polycationic viscoelastic compositions

 #206
20110186293
2011-08-04

USE OF REACTIVE SOLIDS AND FIBERS IN WELLBORE CLEAN-OUT AND STIMULATION APPLICATIONS

 #207
20110168396
2011-07-14

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

 #208
20110152135
2011-06-23

Viscoelastic surfactant acid treatment

 #209
20110111991
2011-05-12

Gelled hydrocarbon system and method with dual-function viscosifier/breaker additive

 #210
20110105369
2011-05-05

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

 #211
20110094737
2011-04-28

Shear-activated viscoelastic surfactant fluid and method

 #212
20110092398
2011-04-21

Viscoelastic surfactant fluids and related methods of use

 #213
20110083902
2011-04-14

Lost circulation control fluids for naturally fractured carbonate formations

 #214
20110056684
2011-03-10

Degradable fiber systems for stimulation

 #215
20110053812
2011-03-03

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

 #216
20110048718
2011-03-03

Treatment fluids comprising entangled equilibrium polymer networks

 #217
20110030958
2011-02-10

Method for treating subterranean formation with degradable material

 #218
20110030953
2011-02-10

Gelled liquid hydrocarbon treatment fluids and their associated methods of use

 #219
20110030952
2011-02-10

Methods of gravel packing long interval wells

 #220
20110021386
2011-01-27

MICROEMULSION TO IMPROVE SHALE GAS PRODUCTION BY CONTROLLING WATER IMBIBITION

 #221
20110017457
2011-01-27

ENVIRONMENTAL COMPOSITIONS AND METHODS FOR WELL TREATMENT

 #222
20100331223
2010-12-30

Acidic viscosity enhancer for viscoelastic surfactant fluids

 #223
20100326658
2010-12-30

Method and composition to increase viscosity of crosslinked polymer fluids

 #224
20100314113
2010-12-16

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

 #225
20100311622
2010-12-09

Polycationic viscoelastic compositions

 #226
20100298177
2010-11-25

Methods for treating a well using a treatment fluid containing a water-soluble polysaccharide, a water-soluble salt, and urea

 #227
20100294498
2010-11-25

Viscoelastic surfactant based wellbore fluids and methods of use

 #228
20100263866
2010-10-21

Multifunctional particles for downhole formation treatments

 #229
20100261624
2010-10-14

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

 #230
20100261622
2010-10-14

Methods and compositions for fracturing subterranean formations

 #231
20100256025
2010-10-07

Viscoelastic surfactants and methods of making and using same

 #232
20100252266
2010-10-07

Organic acid treating fluids with viscoelastic surfactants and internal breakers

 #233
20100248997
2010-09-30

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

 #234
20100234248
2010-09-16

Saponified fatty acids as breakers for viscoelastic surfactant-gelled fluids

 #235
20100216674
2010-08-26

Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid

 #236
20100197531
2010-08-05

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

 #237
20100175874
2010-07-15

Fiber laden energized fluids and methods of use thereof

 #238
20100163228
2010-07-01

Internal breaker for oilfield treatments

 #239
20100160189
2010-06-24

Method and composition for removing filter cake

 #240
20100144560
2010-06-10

Methods for reducing fluid loss of a viscoelastic surfactant gel into a subterranean formation

 #241
20100126723
2010-05-27

Fluid loss control

 #242
20100093565
2010-04-15

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

 #243
20100089580
2010-04-15

Method of enhancing fracture conductivity

 #244
20100071957
2010-03-25

Drilling fluids for oil and gas reservoirs with high carbonate contents

 #245
20100056400
2010-03-04

Use of Mineral Oils to Reduce Fluid Loss for Viscoelastic Surfactant Gelled Fluids

 #246
20100022418
2010-01-28

Method and composition to increase viscosity of crosslinked polymer fluids

 #247
20100018707
2010-01-28

Method of fracturing using ultra lightweight proppant suspensions and gaseous streams

 #248
20100010106
2010-01-14

Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants

 #249
20090312203
2009-12-17

Viscosity enhancers for viscoelastic surfactant stimulation fluids

 #250
20090305915
2009-12-10

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

 #251
20090305914
2009-12-10

Phosphorus-Free Gelled Hydrocarbon Compositions and Method for Use Thereof

 #252
20090305913
2009-12-10

Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids

 #253
20090301722
2009-12-10

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

 #254
20090291864
2009-11-26

Viscoelastic compositions

 #255
20090286703
2009-11-19

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

 #256
20090275490
2009-11-05

Disproportionate permeability reduction using a viscoelastic surfactant

 #257
20090272534
2009-11-05

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

 #258
20090253596
2009-10-08

FLUID LOSS CONTROL AGENTS FOR VISCOELASTIC SURFACTANT FLUIDS

 #259
20090192056
2009-07-30

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

 #260
20090192053
2009-07-30

Methods and compositions for delayed release of chemicals and particles

 #261
20090181866
2009-07-16

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

 #262
20090149352
2009-06-11

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

 #263
20090143256
2009-06-04

Utilization of surfactant as conformance materials

 #264
20090139766
2009-06-04

Methods of perforation using viscoelastic surfactant fluids and associated compositions

 #265
20090137432
2009-05-28

pH Sensitive Emulsion System

 #266
20090111716
2009-04-30

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

 #267
20090107681
2009-04-30

Addition of nonionic surfactants to water soluble block copolymers to increase the stability of the copolymer in aqueous solutions containing salt and/or surfactants

 #268
20090107671
2009-04-30

Stimulation method

 #269
20090065209
2009-03-12

Multifunctional nanoparticles for downhole formation treatments

 #270
20090065207
2009-03-12

Well treatment to inhibit fines migration

 #271
20090065205
2009-03-12

Methods for recovering oil from an oil reservoir

 #272
20090065204
2009-03-12

Methods for recovering oil from an oil reservoir

 #273
20090065203
2009-03-12

Methods for recovering oil from an oil reservoir

 #274
20090056943
2009-03-05

Methods for recovering oil from an oil reservoir

 #275
20090056942
2009-03-05

Method for recovering oil from an oil reservoir

 #276
20090042748
2009-02-12

Method of acidizing sandstone formations

 #277
20090023616
2009-01-22

Aqueous fracturing fluid

 #278
20080318812
2008-12-25

Oil based concentrated slurries and methods for making and using same

 #279
20080300153
2008-12-04

Use of Nano-Sized Clay Minerals in Viscoelastic Surfactant Fluids

 #280
20080289828
2008-11-27

Methods of limiting leak off and damage in hydraulic fractures

 #281
20080279347
2008-11-13

Destination device billing according to call recipient

 #282
20080271888
2008-11-06

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

 #283
20080269081
2008-10-30

Internal breakers for viscoelastic surfactant fluids

 #284
20080269080
2008-10-30

Wellbore treatment compositions containing foam extenders and methods of use thereof

 #285
20080257551
2008-10-23

Methods of chemical diversion of scale inhibitors

 #286
20080255009
2008-10-16

Polycationic viscoelastic compositions

 #287
20080251252
2008-10-16

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

 #288
20080248977
2008-10-09

Polycationic viscoelastic compositions

 #289
20080248976
2008-10-09

Polycationic viscoelastic compositions

 #290
20080236832
2008-10-02

Method for Treating Subterranean Formation

 #291
20080236823
2008-10-02

Degradable fiber systems for stimulation

 #292
20080227672
2008-09-18

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

 #293
20080220995
2008-09-11

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

 #294
20080210423
2008-09-04

Circulated degradable material assisted diversion

 #295
20080202749
2008-08-28

Polymeric gel system and use in hydrocarbon recovery

 #296
20080202744
2008-08-28

Methods and compositions for fracturing subterranean formations

 #297
20080200353
2008-08-21

Viscoelastic surfactant fluids and related methods of use

 #298
20080190619
2008-08-14

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

 #299
20080182762
2008-07-31

Rheology controlled heterogeneous particle placement in hydraulic fracturing

 #300
20080176773
2008-07-24

Method of treating a well with viscoelastic surfactant and viscosification activator