ClassID:

104354

C09K8/86 - CPC Classification

Classification description:

Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations; Compositions for stimulating production by acting on the underground formation; Compositions based on water or polar solvents containing organic compounds

Sub-classes:
Recent Application in this class:
#1
20260098204
2026-04-09

INJECTION FLUIDS COMPRISING AN ANIONIC SURFACTANT FOR TREATING UNCONVENTIONAL FORMATIONS

#2
20250376619
2025-12-11

FLUORESCENT METAL ORGANIC FRAMEWORKS (MOFS) FOR DRILLING DEPTH CORRELATION AND WATERFRONT MAPPING

#3
20250361436
2025-11-27

METHOD OF FABRICATING SURFACTANT FOR IMPROVING THE RECOVERY RATE OF OIL RESERVOIRS IN LOW-PERMEABILITY SANDSTONE

#4
20250289990
2025-09-18

COMPOSITIONS AND METHODS FOR IRON CHELATION

#5
20250250480
2025-08-07

RECYCLING CHELATING AGENTS AND METHODS RELATED THERETO

#6
20250230055
2025-07-17

MODIFIED TITANIUM DISULFIDE NANOMATERIAL AND ITS PREPARATION METHOD AND APPLICATION

#7
20250092304
2025-03-20

WELL CLEAN PREMIUM (WCP-1) SYSTEM AND METHOD

#8
20240410260
2024-12-12

FORMULATIONS OF SELF-WEIGHTED AND WEIGHTED FLUIDS AND USE THEREOF

#9
20240400890
2024-12-05

DIALKYL AND CYCLIC CARBONATE-DERIVED SOLVENT FORMULATIONS FOR CHEMICAL APPLICATIONS IN MITIGATING CONDENSATE BANKING

#10
20240352829
2024-10-24

CHEMICAL HYDROSTATIC BACKPRESSURE REDUCTION METHODOLOGY TO FLOW FLUIDS THROUGH DISPOSAL WELLS

#11
20240336832
2024-10-10

Propoxylates for foam enhancement

#12
20240327698
2024-10-03

INJECTION FLUIDS FOR STIMULATING FRACTURED FORMATIONS

#13
20240294824
2024-09-05

FLUORESCENT METAL ORGANIC FRAMEWORKS (MOFS) FOR DRILLING DEPTH CORRELATION AND WATERFRONT MAPPING

#14
20240279532
2024-08-22

INJECTION FLUIDS COMPRISING A NON-IONIC SURFACTANT FOR TREATING UNCONVENTIONAL FORMATIONS

#15
20240271032
2024-08-15

INJECTION FLUIDS COMPRISING AN ANIONIC SURFACTANT FOR TREATING UNCONVENTIONAL FORMATIONS

#16
20240240074
2024-07-18

COMPOSITIONS FOR STIMULATION OPERATIONS

#17
20240209252
2024-06-27

METHODS FOR STABILIZING WATER SENSITIVE CLAYS AND MIGRATING FINES IN SUBTERRANEAN FORMATIONS

#18
20240182781
2024-06-06

COMPOSITIONS AND METHODS FOR BREAKING FOAMS AND EMULSIONS

#19
20240043738
2024-02-08

ADDITIVES AND METHODS, COMPOSITIONS AND USES RELATING THERETO

#20
20240010906
2024-01-11

ACID STIMULATION METHODS

#21
20230383166
2023-11-30

Emulsifiers for water-based subterranean treatment fluids

#22
20230313020
2023-10-05

Systems and methods in which colloidal silica gel is used to resist corrosion of a wellhead component in a well cellar

#23
20230183553
2023-06-15

COMPOSITIONS AND METHODS FOR IRON CHELATION

#24
20230151266
2023-05-18

DRIED SHALE INHIBITOR ADDITIVES

#25
20230132097
2023-04-27

Chemical hydrostatic backpressure reduction methodology to flow fluids through disposal wells

#26
20230026695
2023-01-26

Biocide blend for treating wellbores

#27
20230020371
2023-01-19

Storable liquid suspension of hollow particles

#28
20220372360
2022-11-24

Divalent brine fluids having improved rheology and multifunctional properties

#29
20220356400
2022-11-10

METHOD AND SYSTEM FOR IN-SITU REMEDIATION USING SURFACTANT-FREE OIL-IN WATER EMULSION

#30
20220195286
2022-06-23

Acid stimulation methods

#31
20220169913
2022-06-02

Methods for stabilizing water sensitive clays and migrating fines in subterranean formations

#32
20220119699
2022-04-21

Synergized Acetals Composition And Method For Scavenging Sulfides And Mercaptans

#33
20220106515
2022-04-07

Compositions for enhanced oil recovery

#34
20220081608
2022-03-17

Enhancing foam rheological properties using water-soluble thickener

#35
20220073812
2022-03-10

DILUTED MICROEMULSIONS WITH LOW SURFACE TENSIONS

#36
20210363402
2021-11-25

COMPOSITION AND METHOD FOR WATER AND GAS SHUT-OFF IN SUBTERRANEAN FORMATIONS

#37
20210340435
2021-11-04

METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS

#38
20210301140
2021-09-30

Rock hardness for hydraulic fracturing and art preservation

#39
20210277303
2021-09-09

Storable liquid suspension of hollow particles

#40
20210269308
2021-09-02

CHLORINE DIOXIDE PRECURSOR AND METHODS OF USING SAME

#41
20210246767
2021-08-12

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

#42
20210246363
2021-08-12

Method of improving rock hardness in carbonate formations

#43
20210238472
2021-08-05

Methods for clay swelling inhibition using gemini surfactants containing a saturated linker

#44
20210238471
2021-08-05

Hydrocarbon formation treatment micellar solutions

#45
20210230474
2021-07-29

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

#46
20210179930
2021-06-17

Compositions and methods for breaking foams and emulsions

#47
20210115316
2021-04-22

Temperature stability of polyols and sugar alcohols in brines

#48
20210095184
2021-04-01

Injection fluids comprising an anionic surfactant for treating unconventional formations

#49
20210079283
2021-03-18

Heavy fluid and method of making it

#50
20210071068
2021-03-11

Methane hydrates improved hydrostatic pressure of foam fracturing

#51
20210062071
2021-03-04

Enhanced high temperature crosslinked fracturing fluids

#52
20210040375
2021-02-11

Foaming Agent Composition and Method for Removing Hydrocarbon Liquids from Subterranean Wells

#53
20200399520
2020-12-24

Additives for oil and gas drilling and production

#54
20200399519
2020-12-24

Additives for oil and gas drilling and production

#55
20200399518
2020-12-24

Additives for oil and gas drilling and production

#56
20200397093
2020-12-24

Boosters for breakers containing iron compounds

#57
20200392391
2020-12-17

Sugar-based surfactant for well treatment fluids

#58
20200369950
2020-11-26

METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS

#59
20200354623
2020-11-12

Crystallization suppressant combinations for high density clear brine fluids

#60
20200317993
2020-10-08

Injection fluids for stimulating fractured formations

#61
20200317992
2020-10-08

Injection fluids comprising a non-ionic surfactant for treating unconventional formations

#62
20200308471
2020-10-01

Aqueous compositions from paraffin inhibitors

#63
20200291287
2020-09-17

Organic acid systems

#64
20200291284
2020-09-17

DIVALENT BRINE FLUIDS HAVING IMPROVED RHEOLOGY AND MULTIFUNCTIONAL PROPERTIES

#65
20200283678
2020-09-10

Tracking production of oil, gas, and water from subterranean formation by adding soluble tracers coated onto solid particulate

#66
20200270510
2020-08-27

Microemulsion flowback aids for oilfield uses

#67
20200270509
2020-08-27

SOLVENT SYSTEMS HAVING A HIGH FLASH POINT AND METHODS OF USE THEREOF

#68
20200239762
2020-07-30

METHOD FOR EXTRACTING PETROLEUM FROM UNDERGROUND DEPOSITS HAVING HIGH TEMPERATURE AND SALINITY

#69
20200224321
2020-07-16

Alkylsulfonic acid compositions

#70
20200216749
2020-07-09

Siloxane surfactant additives for oil and gas applications

#71
20200208046
2020-07-02

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

#72
20200140746
2020-05-07

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

#73
20200131423
2020-04-30

Additives for oil and gas drilling and production

#74
20200123435
2020-04-23

Brine resistant silica sol

#75
20200109329
2020-04-09

Synergized acetals composition and method for scavenging sulfides and mercaptans

#76
20200102487
2020-04-02

Fulvic acid well treatment fluid

#77
20200079989
2020-03-12

Additives to reduce the crystallization temperature of brines and methods of use

#78
20200024497
2020-01-23

Salt tolerant friction reducer

#79
20200017758
2020-01-16

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

#80
20200017757
2020-01-16

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

#81
20200017753
2020-01-16

Compositions and methods for scavenging HS

#82
20190382650
2019-12-19

Targeting enhanced production through deep carbonate stimulation: stabilized acid emulsions containing insoluble solid materials with desired wetting properties

#83
20190382645
2019-12-19

Hydrocarbon formation treatment micellar solutions

#84
20190345372
2019-11-14

Sugar-based surfactant for well treatment fluids

#85
20190322924
2019-10-24

Treatment fluids for stimulation of subterranean formations

#86
20190292436
2019-09-26

Chlorine Dioxide Containing Mixtures And Chlorine Dioxide Bulk Treatments For Enhancing Oil And Gas Recovery

#87
20190284467
2019-09-19

Diluted microemulsions with low surface tensions

#88
20190264094
2019-08-29

METHODS AND COMPOSITIONS FOR USE IN OIL AND/OR GAS WELLS COMPRISING A TERPENE ALCOHOL

#89
20190264093
2019-08-29

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

#90
20190256758
2019-08-22

High densitiy clear brine fluids

#91
20190242234
2019-08-08

Methods for improving channel formation

#92
20190242229
2019-08-08

NANOEMULSIONS FOR USE IN SUBTERRANEAN FRACTURING TREATMENTS

#93
20190225871
2019-07-25

Brine resistant silica sol

#94
20190203103
2019-07-04

Method of mineral oil production

#95
20190187326
2019-06-20

TAGGED CHEMICAL DIVERTER

#96
20190177603
2019-06-13

ENVIRONMENTALLY ACCEPTABLE SURFACTANT IN AQUEOUS-BASED STIMULATION FLUIDS

#97
20190177600
2019-06-13

Flash point adjustment of wettability alteration chemicals in hydrocarbon solvents

#98
20190169492
2019-06-06

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

#99
20190169488
2019-06-06

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

#100
20190161667
2019-05-30

HIGH DENSITY BRINES

#101
20190136124
2019-05-09

Systems and methods for producing hydrocarbons from hydrocarbon bearing rock via combined treatment of the rock and subsequent waterflooding

#102
20190127623
2019-05-02

Heavy Fluid and Method of Making It

#103
20190119557
2019-04-25

Stabilization of iodide-containing brines and brine mixtures

#104
20190119549
2019-04-25

A New Anti-Foaming Composition

#105
20190100687
2019-04-04

METHODS AND COMPOSITIONS FOR FILTER CAKE REMOVAL

#106
20190071957
2019-03-07

Extraction methods and systems for recovery of oil from reservoirs containing mobile water

#107
20190062619
2019-02-28

Enhanced high temperature crosslinked fracturing fluids

#108
20190055461
2019-02-21

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

#109
20190031947
2019-01-31

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

#110
20180371308
2018-12-27

FOOD GRADE MATERIAL AS EFFECTIVE CLAY CONTROL AGENT

#111
20180362842
2018-12-20

HEAVY OIL WETTABILITY IMPROVER

#112
20180347332
2018-12-06

Method of Enhancing Fracture Complexity Using Far-Field Divert Systems

#113
20180346898
2018-12-06

Mannanase variants

#114
20180340127
2018-11-29

Use of a particular carboxylic amino acid in order to limit the formation and/or agglomeration of gas hydrates

#115
20180327648
2018-11-15

Composition and method for water and gas shut-off in subterranean formations

#116
20180320060
2018-11-08

Surfactant compositions for treatment of subterranean formations and produced oil

#117
20180312745
2018-11-01

Compositions for enhanced oil recovery

#118
20180305600
2018-10-25

EXOTHERMIC REACTANTS FOR USE IN SUBTERRANEAN FORMATION TREATMENT FLUIDS

#119
20180305208
2018-10-25

CHLORINE DIOXIDE PRECURSOR AND METHODS OF USING SAME

#120
20180291261
2018-10-11

Hydrocarbon formation treatment micellar solutions

#121
20180291256
2018-10-11

Methods of treating subterranean formations including sequential use of at least two surfactants

#122
20180282611
2018-10-04

METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS

#123
20180237685
2018-08-23

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

#124
20180237684
2018-08-23

Composition for fracturing and displacement and method for fracturing and displacement of tight oil reservoir

#125
20180223172
2018-08-09

Crystallization suppressant combinations for high density clear brine fluids

#126
20180201829
2018-07-19

Microemulsion flowback recovery compositions and methods for making and using same

#127
20180201827
2018-07-19

Well treatment operations using diverting system

#128
20180179858
2018-06-28

Methods of microbial measuring and control

#129
20180171215
2018-06-21

Composition of an organic foaming additive for high temperature and high salinity

#130
20180171198
2018-06-21

Temperature stability of polyols and sugar alcohols in brines

#131
20180163118
2018-06-14

Foaming agent composition and method for removing hydrocarbon liquids from subterranean wells

#132
20180155600
2018-06-07

Hydro-fracking method using an aloe vera fracturing fluid

#133
20180155598
2018-06-07

Divalent brine fluids having improved rheology and multifunctional properties

#134
20180148635
2018-05-31

Polymeric systems for particle dispersion

#135
20180127641
2018-05-10

Microbubbles for heat and/or gas generation in subterranean formations

#136
20180127640
2018-05-10

Chelating etching agent stimulation and proppant stabilization of low-permeability subterranean formations

#137
20180118999
2018-05-03

Compositions and methods for stabilizing water sensitive clays and migrating fines in subterranean formations

#138
20180100094
2018-04-12

Salt tolerant friction reducer

#139
20180079952
2018-03-22

Colored organic peroxide compositions and methods for breaking fluids

#140
20180066178
2018-03-08

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

#141
20180002595
2018-01-04

Systems and methods for producing hydrocarbons from hydrocarbon bearing rock via combined treatment of the rock and subsequent waterflooding

#142
20170369769
2017-12-28

Low-energy proppants for downhole operations

#143
20170369759
2017-12-28

Compositions for enhanced oil recovery

#144
20170355897
2017-12-14

Method of mineral oil production

#145
20170342313
2017-11-30

Shear recovery for viscosifying surfactants in stimulation fluids

#146
20170335179
2017-11-23

Use of olefinic ester compositions in oil and gas fields

#147
20170327731
2017-11-16

Surfactant selection methods for fluid recovery in subterranean formations

#148
20170292066
2017-10-12

Synthetic Acid Compositions Alternatives to Conventional Acids in the Oil and Gas Industry

#149
20170292064
2017-10-12

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

#150
20170292062
2017-10-12

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

#151
20170267917
2017-09-21

Hydrocarbon well treatment methods and fluids

#152
20170247609
2017-08-31

METHODS AND COMPOSITIONS FOR RECOVERY OF RESIDUAL OIL FROM A POROUS STRUCTURE

#153
20170240806
2017-08-24

CHEMICAL AMENDMENTS FOR THE STIMULATION OF BIOGENIC GAS GENERATION IN DEPOSITS OF CARBONACEOUS MATERIAL

#154
20170240801
2017-08-24

FRACTURING FLUIDS CONTAINING A VISCOELASTIC SURFACTANT VISCOSIFIER

#155
20170210979
2017-07-27

Targeting enhanced production through deep carbonate stimulation: stabilized acid emulsions containing insoluble solid materials with desired wetting properties

#156
20170166801
2017-06-15

Solvent systems having a high flash point and methods of use thereof

#157
20170158946
2017-06-08

Methods of simultaneously introducing a curable resin and curing agent with delayed curing

#158
20170096596
2017-04-06

Using synthetic acid compositions as alternatives to conventional acids in the oil and gas industry

#159
20170066957
2017-03-09

Non-reducing stabilization complexant for acidizing compositions and associated methods

#160
20170058189
2017-03-02

HIGH-PERFORMANCE ECO-FRIENDLY NON-EMULSIFIER

#161
20170058183
2017-03-02

Breaker and displacement fluid

#162
20170051599
2017-02-23

Method of enhancing fracture complexity using far-field divert systems

#163
20170029687
2017-02-02

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

#164
20170015899
2017-01-19

CONTROLLING SOLID SUSPENSION IN FLUIDS

#165
20170015898
2017-01-19

Environmentally preferable microemulsion composition

#166
20170009130
2017-01-12

Imidazolinium compounds as dual corrosion inhibitors

#167
20160376881
2016-12-29

Well treatment methods and fluids with GLDA salt

#168
20160312106
2016-10-27

Siloxane surfactant additives for oil and gas applications

#169
20160289543
2016-10-06

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

#170
20160272875
2016-09-22

Amido-functionalized gemini surfactant for fluid control in subterranean formations

#171
20160264858
2016-09-15

Particulate aggregating and surface modification with improved hydrocarbon fluid flow through the aggregated particulates and over solid surface reagents and methods for making and using same

#172
20160264857
2016-09-15

Particulate aggregating and surface modification with improved hydrocarbon fluid flow through the aggregated particulates and over solid surface reagents and methods for making and using same

#173
20160264845
2016-09-15

Particulate aggregating and surface modification with improved hydrocarbon fluid flow through the aggregated particulates and over solid surface reagents and methods for making and using same

#174
20160257879
2016-09-08

Foam assisted liquid removal using alcohol ether sulfonates

#175
20160244660
2016-08-25

Treatment fluids containing a hydrophobically modified chelating agent and methods for use thereof

#176
20160237338
2016-08-18

Pretreatment of Subterranean Formations for Dendritic Fracturing

#177
20160230069
2016-08-11

Environmental friendly well treatment fluids comprising an ester

#178
20160229797
2016-08-11

Low pH metal-free preparation of aminated organic acid

#179
20160222284
2016-08-04

Injecting polyelectrolyte based sacrificial agents for use in unconventional formations

#180
20160221826
2016-08-04

CHLORINE DIOXIDE PRECURSOR AND METHODS OF USING SAME

#181
20160200968
2016-07-14

WATER TREATMENT

#182
20160194550
2016-07-07

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

#183
20160177170
2016-06-23

Corrosion inhibitor compositions for acidizing treatments

#184
20160152887
2016-06-02

Hydrocarbon well treatment methods and fluids

#185
20160137910
2016-05-19

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

#186
20160115376
2016-04-28

Process to treat subterranean formations using a chelating agent

#187
20160108307
2016-04-21

Methods for etching fractures and microfractures in shale formations

#188
20160096989
2016-04-07

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

#189
20160084051
2016-03-24

IN SITU RECOVERY FROM RESIDUALLY HEATED SECTIONS IN A HYDROCARBON CONTAINING FORMATION

#190
20160083639
2016-03-24

Multi-functional surfactant complexes for use in subterranean formations

#191
20160040055
2016-02-11

Compositions for treating subterranean formations

#192
20160010441
2016-01-14

Process for producing natural gas and natural gas condensate from underground gas condensate deposits

#193
20160003018
2016-01-07

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

#194
20160002521
2016-01-07

LUBRICANTS AND WELLBORE FLUIDS

#195
20150377010
2015-12-31

Use of long chain amines and difunctional compounds as tracers

#196
20150368550
2015-12-24

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

#197
20150361330
2015-12-17

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

#198
20150361329
2015-12-17

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

#199
20150354332
2015-12-10

Process for treating subterranean oil-bearing formations comprising carbonate rocks

#200
20150354298
2015-12-10

COMPLETION FLUID

#201
20150353818
2015-12-10

Process for producing mineral oil using surfactants based on a mixture of C32 guerbet-, C34 guerbet-, C36 guerbet-containing alkyl alkoxylates

#202
20150353815
2015-12-10

Method of fracturing a subterranean formation with use flowback aids

#203
20150344771
2015-12-03

Preparation method, formulation and application of chemically retarded mineral acid for oilfield use

#204
20150344765
2015-12-03

CLAY-SWELLING INHIBITOR, COMPOSITIONS COMPRISING SAID INHIBITOR AND PROCESSES USING SAID INHIBITOR

#205
20150329766
2015-11-19

Method of contacting hydrocarbon-bearing formations with fluorinated ionic polymers

#206
20150329764
2015-11-19

Treatment fluids containing a boron trifluoride complex and methods for use thereof

#207
20150315455
2015-11-05

Flash point adjustment of wettability alteration chemicals in hydrocarbon solvents

#208
20150299561
2015-10-22

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

#209
20150299554
2015-10-22

Alkylated polyetheramines as clay stabilizing agents

#210
20150252249
2015-09-10

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

#211
20150211345
2015-07-30

Methods and systems for stimulating a subterranean formation containing a carbonate mineral

#212
20150203741
2015-07-23

Natural oil-derived wellbore compositions and methods of use

#213
20150114647
2015-04-30

Aqueous solution and method for use thereof

#214
20150107832
2015-04-23

Process to produce oil or gas from a subterranean formation using a chelating agent

#215
20150101816
2015-04-16

Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material

#216
20150060066
2015-03-05

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

#217
20150053404
2015-02-26

Siloxane surfactant additives for oil and gas applications

#218
20150045260
2015-02-12

Thermal insulating fluids

#219
20140371115
2014-12-18

METHODS AND COMPOSITIONS FOR STIMULATING THE PRODUCTION OF HYDROCARBONS FROM SUBTERRANEAN FORMATIONS

#220
20140367117
2014-12-18

Agents for enhanced degradation of controlled electrolytic material

#221
20140321914
2014-10-30

Controlled dewatering of confined, saturated formations in excavation mines

#222
20140317999
2014-10-30

USE OF AMINES IN RECOVERY OF ACTIVE OILS

#223
20140303048
2014-10-09

Zeta potential modifiers to decrease the residual oil saturation

#224
20140303047
2014-10-09

Wellbore servicing compositions and methods of making and using same

#225
20140262264
2014-09-18

Compositions and methods for increasing fracture conductivity

#226
20140221256
2014-08-07

Low-temperature breaker for well fluid viscosified with a polyacrylamide

#227
20130331304
2013-12-12

Chelating agent precursors, fluids containing them, and their use

#228
20130303412
2013-11-14

Viscosified fluid loss control agent utilizing chelates

#229
20130281329
2013-10-24

Ammonium salts of chelating agents and their use in oil and gas field applications

#230
20130267446
2013-10-10

Treatment of illitic formations using a chelating agent

#231
20130252857
2013-09-26

Completion fluid

#232
20130233559
2013-09-12

Surfactant Additives for Stimulating Subterranean Formation During Fracturing Operations

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Stabilized acid precursor and acid-enzyme formulations for drilling mud cake removal

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Lubricating compositions for use with downhole fluids

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Breaker and displacement fluid

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Hybrid Aqueous-Based Suspensions for Hydraulic Fracturing Operations

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Use of environmentally friendly solvents to replace glycol-based solvents

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Oxygen scavenger compositions for completion brines

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Microbial enhanced oil recovery process for heavy oil accumulations

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Agents for enhanced degradation of controlled electrolytic material

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Method for selection of surfactants in well stimulation

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Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack

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Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack

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Methods for Stimulating Oil or Gas Production Using a Viscosified Aqueous Fluid with a Chelating Agent to Remove Calcium Carbonate and Similar Materials from the Matrix of a Formation or a Proppant Pack

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Nano-Sized Particles for Stabilizing Viscoelastic Surfactant Fluids

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Compositions, methods, apparatus, and systems for incorporating bio-derived materials in drilling and hydraulic fracturing

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Chlorine dioxide precursor and methods of using same

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Thermal insulating fluids

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

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METHODS FOR STIMULATING OIL OR GAS PRODUCTION USING A VISCOSIFIED AQUEOUS FLUID WITH A CHELATING AGENT TO REMOVE CALCIUM CARBONATE AND SIMILAR MATERIALS FROM THE MATRIX OF A FORMATION OR A PROPPANT PACK

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FRICTION REDUCER

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ORGANIC SALTS FOR REDUCING STONE PERMEABLITIES

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Oxygen scavenger compositions for completion brines

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Treatment fluids containing a boron trifluoride complex and methods for use thereof

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

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Treatment fluids containing biodegradable chelating agents and methods for use thereof

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

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

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TREATMENT FLUIDS MADE OF HYDANTOIN DERIVATIVES FOR OPERATIONS IN A WELL

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Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature

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Process for producing mineral oil using surfactants based on a mixture of C32 Guerbet-, C34 Guerbet-, C36 Guerbet-containing alkyl alkoxylates

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Solubilization of Carbonaceous Materials and Conversion to Hydrocarbons and Other Useful Products

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Method for Treating Hydrocarbon-Bearing Formations with Fluorinated Epoxides

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Gelled hydrocarbons for oilfield processes and methods of use

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Formation conditioning fluids comprising peroxides and methods relating thereto

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Methods of using hydrocarbon gelling agents as self-diverting scale inhibitors

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Use of zeta potential modifiers to decrease the residual oil saturation

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Alkali metal salt of glutamic acid N,N-diacetic acid, a process to prepare such salt, and the use thereof

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Method for reducing the viscosity of viscous fluids

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Glutamic acid N,N-diacetic amide, glutamic acid N-acetic amide N-acetonitrile, alkali metal salts thereof, process to prepare them and their use

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Thermothickener polymer and surfactant composition and methods of employing the composition

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Method for making particulate slurries and particulate slurry compositions

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Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material

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

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Surface-modifying agents for wettability modification

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Method for treating a formation with a solvent

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Additives for oil recovery from reservoirs

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Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature

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Well stimulation

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Floating insulated conductors for heating subsurface formations

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Parallel heater system for subsurface formations

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Controlling and assessing pressure conditions during treatment of tar sands formations

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Gelled hydrocarbons for oilfield processes and methods of use

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Methods of diverting chelating agents in subterranean treatments

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Hydrolytically and hydrothermally stable consolidation or change in the wetting behavior of geological formations

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METHOD FOR ENHANCED RECOVERY OF OIL FROM OIL RESERVOIRS

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Treating nahcolite containing formations and saline zones

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ELECTRICALLY ISOLATING INSULATED CONDUCTOR HEATER

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In situ heat treatment of a tar sands formation after drive process treatment

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Production from multiple zones of a tar sands formation

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Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities

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Heating systems for heating subsurface formations

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Molten salt as a heat transfer fluid for heating a subsurface formation

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In situ recovery from residually heated sections in a hydrocarbon containing formation

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Wellbore manufacturing processes for in situ heat treatment processes

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Downhole burner systems and methods for heating subsurface formations

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Drilling subsurface wellbores with cutting structures