ClassID:

104990

C09K2208/20 - CPC Classification

Classification description:

Aspects relating to compositions of drilling or well treatment fluids Hydrogen sulfide elimination

Recent Application in this class:
#1
20260078296
2026-03-19

SUSTAINED-RELEASE SCALE INHIBITORS

#2
20260062604
2026-03-05

INFUSED AND COATED PROPPANT CONTAINING CHEMICAL TREATMENT AGENTS AND METHODS OF USING SAME

#3
20260028525
2026-01-29

METHOD FOR SCAVAGING SOUR GAS IN A WELLBORE

#4
20260008951
2026-01-08

HYDROGEN SULFIDE SCAVENGING COMPOSITIONS

#5
20260008950
2026-01-08

HYDROGEN SULFIDE SCAVAGING METHOD USING LAYERED TRIPLE HYDROXIDE

#6
20250346801
2025-11-13

Method for Removing Metal Contaminants

#7
20250346800
2025-11-13

NANOBUBBLE FOR IMPROVING SCAVENGER EFFICIENCY

#8
20250346799
2025-11-13

MATERIAL AND METHODS FOR ENHANCED TRIAZINE-H2S SCAVENGING EFFICIENCY IN BUBBLE TOWER REACTOR USING NANO-BUBBLING TECHNOLOGY

#9
20250334008
2025-10-30

METHOD FOR TREATING A WELL BORE FOR DEHYDROSULFURIZATION

#10
20250320402
2025-10-16

SYSTEMS AND METHODS FOR SCAVENGING SULFUR-CONTAINING MATERIALS USING A PRECURSOR SCAVENGER MATERIAL

#11
20250304850
2025-10-02

METHOD OF REMOVING HYDROGEN SULFIDE FROM A SUBTERRANEAN GEOLOGICAL FORMATION WITH A ZEOLITIC IMIDAZOLATE FRAMEWORK IN WASTE COOKING OIL-BASED DRILLING FLUIDS

#12
20250282987
2025-09-11

INCORPORATING IMIDAZOLE-BASED NANOMATERIAL INTO DRILLING FLUIDS FOR EFFECTIVE HYDROGEN SULFIDE SCAVENGING DURING DRILLING OPERATIONS

#13
20250270706
2025-08-28

CORROSION INHIBITOR COMPOSITIONS AND METHODS OF USING THE COMPOSITIONS TO INHIBIT CORROSION

#14
20250263596
2025-08-21

SULFONYL AZIDE COMPOSITION FOR SULFUR SCAVENGING IN OILFIELD OPERATIONS

#15
20250163315
2025-05-22

MATERIALS AND COMPOSITIONS FOR RESERVOIR STIMULATION TREATMENT

#16
20250109330
2025-04-03

METHOD FOR REDUCING HYDROGEN SULFIDE (H2S) CONTENT OF H2S-CONTAINING SUBTERRANEAN FORMATION

#17
20250075597
2025-03-06

Sustained casing pressure management system and method of use

#18
20250002785
2025-01-02

MULTIPURPOSE IMIDAZOLINE-BASED PROCESS CHEMICALS

#19
20240400925
2024-12-05

OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER

#20
20240400886
2024-12-05

OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER

#21
20240400883
2024-12-05

Method for reducing hydrogen sulfide in a subterranean formation

#22
20240400882
2024-12-05

Process for removing hydrogen sulfide from a gas composition

#23
20240400881
2024-12-05

WEIGHTED DRILLING FLUID COMPOSITION

#24
20240400426
2024-12-05

OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER

#25
20240368452
2024-11-07

COMPOSITIONS AND METHODS FOR THE DISSOLUTION OF IRON SULFIDE

#26
20240336827
2024-10-10

DRILLING FLUID COMPOSITION AND METHOD FOR REMOVING HYDROGEN SULFIDE CONTENT USING THE SAME

#27
20240299879
2024-09-12

SULFIDE SCAVENGING AGGREGATE FOR THE CONSTRUCTION OF LANDFILL GAS WELLS

#28
20240294821
2024-09-05

CORROSION INHIBITION COMPOSITIONS AND METHODS OF USE IN SOUR ENVIRONMENTS

#29
20240224999
2024-07-11

METABOLIC INHIBITORS FOR CONTROLLING BIOFILM

#30
20240218273
2024-07-04

ZINC-BASED SULFUR COMPOUND SCAVENGER WITH REDUCED SOLIDS DEPOSITION

#31
20240217909
2024-07-04

STABILIZING ACROLEIN IN CARBONATE SOLVENTS

#32
20240191126
2024-06-13

Polymeric red mud-based killing fluid and uses thereof

#33
20240093082
2024-03-21

Aqueous fluid compositions and barite scale removal therewith

#34
20240067543
2024-02-29

Process for decontamination of hazardous sulfur compounds in sour water tanks

#35
20240018406
2024-01-18

Manganese oxide sulfide capture drilling fluid

#36
20230399562
2023-12-14

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

#37
20230374369
2023-11-23

Nanoparticle carrier platform and methods for controlled release of subterranean well treatment additives

#38
20230204516
2023-06-29

Testing H2S Scavengers Polymerization Factors

#39
20230193113
2023-06-22

Increasing scavenging efficiency of HS scavenger by adding linear polymer

#40
20230183640
2023-06-15

METABOLIC INHIBITORS WITH EFFICACY FOR INHIBITING SULFIDE PRODUCTION IN HARSH ENVIRONMENTS

#41
20230159814
2023-05-25

Multifunctional composition for enhanced oil recovery, improved oil quality and prevention of corrosion

#42
20230159813
2023-05-25

Polymeric swellable scavengers for acidic gases

#43
20230159812
2023-05-25

Synergized Acetals Composition And Method For Scavenging Sulfides And Mercaptans

#44
20230140610
2023-05-04

Compositions and methods and uses relating thereto

#45
20230133492
2023-05-04

IRON SULFIDE AND HYDROGEN SULFIDE TREATMENT FLUID

#46
20230102592
2023-03-30

Chemical compositions and in-situ methods of using same for remediating sulfur-containing compositions and other contaminants in fluids being extracted from the earth

#47
20230072992
2023-03-09

Chemical compositions and methods of using same for remediating sulfur-containing compositions and other contaminants encountered in drilling wells

#48
20230043923
2023-02-09

Aqueous retarded acid treatment composition for well stimulation

#49
20230026695
2023-01-26

Biocide blend for treating wellbores

#50
20220363974
2022-11-17

Oil Well Additive

#51
20220340805
2022-10-27

Methods of treating paraffins, iron sulfide, hydrogen sulfide, and/or bacteria

#52
20220315829
2022-10-06

Liquid sand treatment optimization

#53
20220298404
2022-09-22

Processing produced fluids for fluid recovery

#54
20220213377
2022-07-07

Scale deposition inhibiting scavenger compositions and their use

#55
20220119699
2022-04-21

Synergized Acetals Composition And Method For Scavenging Sulfides And Mercaptans

#56
20220098469
2022-03-31

Nanoparticle carrier platform and methods for controlled release of subterranean well treatment additives

#57
20220073813
2022-03-10

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

#58
20220010195
2022-01-13

NEUTRALIZE HAZARD GASES CONTROL SYSTEM

#59
20210389255
2021-12-16

Testing HS scavengers' polymerization factors

#60
20210355809
2021-11-18

Compositions, systems, and methods for iron sulfide scale identification, prevention, and reduction

#61
20210340433
2021-11-04

Acid emulsifier technology for continuous mixed emulsified acid systems

#62
20210340432
2021-11-04

Methods of Using Delayed Release Well Treatment Composititions

#63
20210292639
2021-09-23

Method of acidizing a subterranean formation comprising a gelling agent

#64
20210284900
2021-09-16

Ceramic foundry media and related methods

#65
20210269308
2021-09-02

CHLORINE DIOXIDE PRECURSOR AND METHODS OF USING SAME

#66
20210230475
2021-07-29

Liquid sand treatment optimization

#67
20210179926
2021-06-17

METHODS, PRODUCTS & USES RELATING TO SCAVENGING OF ACIDIC SULFIDE SPECIES

#68
20210171822
2021-06-10

In situ H2S scavenger additive generation

#69
20210108125
2021-04-15

COMPOSITION AND METHOD FOR CONTROLLING BACTERIA IN FORMATIONS

#70
20210040375
2021-02-11

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

#71
20210040374
2021-02-11

Processing produced fluids for fluid recovery

#72
20200377394
2020-12-03

Process for decontamination of hazardous sulfur compounds in sour water tanks

#73
20200362228
2020-11-19

Multifunctional composition for enhanced oil recovery, improved oil quality and prevention of corrosion

#74
20200339864
2020-10-29

Nanoparticle carrier platform and methods for controlled release of subterranean well treatment additives

#75
20200308467
2020-10-01

Reversible aminal gel compositions, methods, and use

#76
20200277525
2020-09-03

Sodium nitroprusside and nitrate metabolic inhibition of sulfate-reducing microbes to control sulfide production

#77
20200270509
2020-08-27

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

#78
20200239772
2020-07-30

Acrylate-based sulfur scavenging agents for use in oilfield operations

#79
20200190395
2020-06-18

Composition and method for controlling bacteria in formations

#80
20200157439
2020-05-21

Synergized acetals composition and method for scavenging sulfides and mercaptans

#81
20200157410
2020-05-21

Compositions and methods and uses relating thereto

#82
20200149382
2020-05-14

In-line treatment cartridge and methods of using same

#83
20200123433
2020-04-23

Compositions and methods for reducing hydrogen sulfide and microbial influenced corrosion in crude oil, natural gas, and in associated equipment

#84
20200115617
2020-04-16

Synergistic sulfide scavenging additives for use in oilfield operations

#85
20200109329
2020-04-09

Synergized acetals composition and method for scavenging sulfides and mercaptans

#86
20200109328
2020-04-09

Process for removal of hydrogen sulfide in downhole oilfield application

#87
20200102811
2020-04-02

Chemical deployment modular system and method of use

#88
20200095490
2020-03-26

METHODS AND SYSTEMS FOR NEUTRALIZING HYDROGEN SULFIDE DURING DRILLING

#89
20200087565
2020-03-19

Capsule design for the capture of reagents

#90
20200087564
2020-03-19

Capsule design for the capture of reagents

#91
20200071641
2020-03-05

Treatment of sulfide scales

#92
20200017753
2020-01-16

Compositions and methods for scavenging HS

#93
20200002600
2020-01-02

METAL-CHELATE COMPLEX HYDROGEN SULFIDE SCAVENGERS

#94
20190367799
2019-12-05

PROCESS AND COMPOSITION FOR REMOVING METAL SULFIDES

#95
20190367794
2019-12-05

Reversible aminal gel compositions, methods, and use

#96
20190359877
2019-11-28

Reversible aminal gel compositions, methods, and use

#97
20190352554
2019-11-21

Reversible aminal gel compositions, methods, and use

#98
20190322948
2019-10-24

METHODS AND COMPOSITIONS FOR SCAVENGING SULFIDES AND CARBON DIOXIDE FROM PETROLEUM AND NATURAL GAS

#99
20190309213
2019-10-10

In-situ hydrogen sulfide mitigation

#100
20190270926
2019-09-05

Capsule design for the capture of reagents

#101
20190256766
2019-08-22

Method of acidizing a subterranean formation comprising a gelling agent

#102
20190233711
2019-08-01

Iron sulfide dissolver

#103
20190218446
2019-07-18

Anti-agglomerate hydrate inhibitors

#104
20190218442
2019-07-18

Method for drilling a wellbore with a weighted hydrogen sulfide scavenger fluid

#105
20190218441
2019-07-18

Method for drilling a hydrogen sulfide-containing formation

#106
20190211249
2019-07-11

Encapsulated production chemicals

#107
20190203098
2019-07-04

Capsule design for the capture of reagents

#108
20190202941
2019-07-04

Phosphonated polysaccharides and gels and process for making same

#109
20190177601
2019-06-13

Acidizing treatment fluids for use in subterranean formation operations

#110
20190127639
2019-05-02

Corrosion inhibitor compositions and methods of using same

#111
20190100684
2019-04-04

Method of drilling a substerranean geological formation with a drilling fluid composition comprising copper nitrate

#112
20190093007
2019-03-28

Methods and compositions for treating a subterranean formation with a polymeric additive composite

#113
20190093001
2019-03-28

Process for the cleaning oil and gas wellbores

#114
20190040300
2019-02-07

Reduced corrosion iron sulfide scale removing fluids

#115
20190031951
2019-01-31

Methods and materials for controlled release of desired chemistries

#116
20190010385
2019-01-10

Compositions and methods for controlling strong acid systems

#117
20190010380
2019-01-10

Method for controlling bacteria in formations using molybdate

#118
20190010379
2019-01-10

Composition and method for controlling bacteria in formations

#119
20190002768
2019-01-03

Nitrogen based hydrogen sulfide scavengers and method of use thereof

#120
20180371851
2018-12-27

Hydraulic diversion systems to enhance matrix treatments and methods for using same

#121
20180355491
2018-12-13

Synthetic hydroxide compositions and uses thereof

#122
20180347316
2018-12-06

Multi-stage treatment for iron sulfide scales

#123
20180346794
2018-12-06

Synergistic sulfide scavenging additives for use in oilfield operations

#124
20180340115
2018-11-29

Injection system for controlled delivery of solid oil field chemicals

#125
20180340113
2018-11-29

Iron sulfide removal in oilfield applications

#126
20180333720
2018-11-22

Centrifugal platform and device for rapid analysis of oilfield fluids

#127
20180305609
2018-10-25

ENCAPSULATED ADDITIVES FOR USE IN SUBTERRANEAN FORMATION OPERATIONS

#128
20180298274
2018-10-18

Oil field chemical delivery fluids, methods for their use in the targeted delivery of oil field chemicals to subterranean hydrocarbon reservoirs and methods for tracing fluid flow

#129
20180297874
2018-10-18

Process for decontamination of hazardous sulfur compounds in sour water tanks

#130
20180291512
2018-10-11

Low water solubility compositions for use in corrosion protection

#131
20180291257
2018-10-11

Methods and systems for infusing porous ceramic proppant with a chemical treatment agent

#132
20180273828
2018-09-27

Scale deposition inhibiting scavenger compositions and their use

#133
20180265765
2018-09-20

Encapsulated scale inhibitor for downhole applications in subterranean formations

#134
20180251808
2018-09-06

Method and Reagents for Detecting Contaminants in Oil and Gas Environments

#135
20180251668
2018-09-06

CARRIER-FREE TREATMENT PARTICULATES FOR USE IN SUBTERRANEAN FORMATIONS

#136
20180245004
2018-08-30

Use of sulfonium salts as hydrogen sulfide inhibitors

#137
20180237688
2018-08-23

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

#138
20180208822
2018-07-26

Proteins for removing sulfurous compounds and/or acidic compounds in downhole fluids

#139
20180201825
2018-07-19

COATING FOR CAPTURING SULFIDES

#140
20180179433
2018-06-28

Drilling fluid composition containing a diester-based oil phase

#141
20180171771
2018-06-21

Squeeze treatment for in situ scavenging of hydrogen sulfide

#142
20180171211
2018-06-21

Nanoparticle carrier platform and methods for controlled release of subterranean well treatment additives

#143
20180171210
2018-06-21

Process for removal of hydrogen sulfide in downhole oilfield applications

#144
20180169714
2018-06-21

Compositions, systems, and methods for removing iron sulfide scale from oilfield components

#145
20180163118
2018-06-14

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

#146
20180155597
2018-06-07

Controlled release system for the release of oil field chemicals and use of the system for reservoir treatment and monitoring

#147
20180135189
2018-05-17

Additives to control hydrogen sulfide release of sulfur containing and/or phosphorus containing corrosion inhibitors

#148
20180127634
2018-05-10

Reversible aminal gel compositions, methods, and use

#149
20180105754
2018-04-19

Electrolyzed water-amine compositions and methods of use

#150
20180105732
2018-04-19

Composition and method for inhibition of sulfide scales

#151
20180105729
2018-04-19

WINTERIZING COMPOSITIONS FOR SULFUR SCAVENGERS AND METHODS FOR MAKING AND USING SAME

#152
20180100096
2018-04-12

Composition and method for scavenging sulfides and mercaptans

#153
20180086961
2018-03-29

Delayed-release additives in a degradable matrix

#154
20180072940
2018-03-15

Compositions, systems, and methods for removing iron sulfide scale from oilfield components using methyl acrylate

#155
20180072939
2018-03-15

Method of using shaped compressed pellets in well treatment operations

#156
20180072936
2018-03-15

Methods and systems for neutralizing hydrogen sulfide during drilling

#157
20180044571
2018-02-15

COMBINED USES OF A PHOSPHOROUS COMPOUND FOR IRON SULPHIDE DISSOLUTION AND BACTERIAL CONTROL

#158
20180030340
2018-02-01

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

#159
20170355895
2017-12-14

Activity enhanced scale dispersant for treating inorganic sulfide scales

#160
20170349821
2017-12-07

MICROENCAPSULATION OF TREATMENT CHEMICALS FOR USE IN SUBTERRANEAN FORMATIONS

#161
20170349817
2017-12-07

Polymer with internal crosslinking and breaking mechanisms

#162
20170335188
2017-11-23

Acrylate-based sulfur scavenging agents for use in oilfield operations

#163
20170335161
2017-11-23

Reversible aminal gel compositions, methods, and use

#164
20170321110
2017-11-09

ENHANCED OIL RECOVERY FLUID COMPRISING POTASSIUM CARBONATE, ASSOCIATED METHODS AND ARRANGEMENT

#165
20170306505
2017-10-26

Chemical inhibition of pitting corrosion in methanolic solutions containing an organic halide

#166
20170306502
2017-10-26

Corrosion inhibitor compositions and methods of using same

#167
20170306219
2017-10-26

CONTROLLED RELEASE OF CHEMICALS IN OILFIELD OPERATIONS

#168
20170283685
2017-10-05

SPECIFIC INHIBITORS OF (PER)CHLORATE RESPIRATION AS A MEANS TO ENHANCE THE EFFECTIVENESS OF (PER)CHLORATE AS A SOURING CONTROL MECHANISM IN OIL RESERVOIRS

#169
20170251665
2017-09-07

Solid antimicrobial glutaraldehyde compositions and their uses

#170
20170247601
2017-08-31

METHOD FOR INHIBITING SULFIDE STRESS CRACKING OF METALS

#171
20170247600
2017-08-31

Methods and compositions for inhibiting sulfide stress cracking

#172
20170240802
2017-08-24

Method for the use of nitrates and nitrate reducing bacteria in hydraulic fracturing

#173
20170233628
2017-08-17

ENZYME DESTABILIZERS FOR DESTABILIZING ENZYMES PRODUCING SULFUR CONTAINING COMPOUNDS IN DOWNHOLE FLUIDS

#174
20170226841
2017-08-10

Squeeze treatment for in situ scavenging of hydrogen sulfide

#175
20170218248
2017-08-03

Reversible aminal gel compositions, methods, and use

#176
20170216768
2017-08-03

Method of scavenging hydrogen sulfide and mercaptans using well treatment composites

#177
20170198196
2017-07-13

METHODS FOR CONTROLLING SOURING IN ENGINEERED SYSTEMS

#178
20170166801
2017-06-15

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

#179
20170152431
2017-06-01

Compositions and method for treating out hydrogen sulfide and preventing settling of precipitate in an environmentally responsible drilling and packer fluid

#180
20170145788
2017-05-25

Solid chemicals injection system for oil field applications

#181
20170145291
2017-05-25

Method of preventing or mitigating formation of metal sulfide scales during oil and gas production

#182
20170137790
2017-05-18

ENZYMES FOR REMOVING SULFUROUS COMPOUNDS IN DOWNHOLE FLUIDS

#183
20170121584
2017-05-04

Sulfide stress cracking inhibitors

#184
20170088766
2017-03-30

NON-DAMAGING BIMODAL STIMULATION COMPOSITION AND METHOD OF USE THEREOF

#185
20170002260
2017-01-05

Biocidal composition

#186
20160376489
2016-12-29

LUBRICANT FOR HIGH pH WATER BASED MUD SYSTEM

#187
20160369156
2016-12-22

Microbial metabolism of chlorine oxyanions as a control of biogenic hydrogen sulfide production

#188
20160362502
2016-12-15

Phosphonated polysaccharides and gels and process for making same

#189
20160355724
2016-12-08

Acrylonitrile-based sulfur scavenging agents and methods of use in oilfield operations

#190
20160348451
2016-12-01

Techniques to manage mud properties

#191
20160312104
2016-10-27

Methods for inhibiting iron sulfide scale in oil wells

#192
20160289571
2016-10-06

Electrolized water—amine compositions and methods of use

#193
20160257879
2016-09-08

Foam assisted liquid removal using alcohol ether sulfonates

#194
20160237336
2016-08-18

Dual breaker system for reducing formation damage during fracturing

#195
20160230076
2016-08-11

Freeze/thaw stable latex emulsion for treatment of well bore tar

#196
20160222762
2016-08-04

Diphenyliodonium salts as sulfidogenesis inhibitors and antimicrobials

#197
20160160105
2016-06-09

Enzymes for removing sulfurous compounds in downhole fluids

#198
20160115365
2016-04-28

Methods for maintaining zonal isolation in a subterranean well

#199
20160075941
2016-03-17

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

#200
20160032177
2016-02-04

Methods and systems for infusing porous ceramic proppant with a chemical treatment agent

#201
20150354323
2015-12-10

NON-ALKYL PYRIDINE SOUR CORROSION INHIBITORS AND METHODS FOR MAKING AND USING SAME

#202
20150166877
2015-06-18

Process of removal of hydrogen sulfide in downhole oilfield applications

#203
20150096751
2015-04-09

Hydraulic fracturing composition, method for making and use of same

#204
20150027961
2015-01-29

Process for decontamination of hazardous sulfur compounds in sour water tanks

#205
20150000918
2015-01-01

Catalyzed polyamine sulfide scavengers and methods of use in subterranean treatment fluids

#206
20140263038
2014-09-18

Method for control of deleterious microbes in oil and gas and other industrial fluids

#207
20140166288
2014-06-19

Squeeze treatment for in situ scavenging of hydrogen sulfide

#208
20140166282
2014-06-19

Functionalized hydrogen sulfide scavengers

#209
20140080792
2014-03-20

Treatment method for a hydrocarbon-containing system using a biocide

#210
20140057817
2014-02-27

Method of scavenging hydrogen sulfide and/or sulfhydryl compounds

#211
20130324442
2013-12-05

Compositions and method for treating out hydrogen sulfide and preventing settling of precipitate in an environmentally responsible drilling and packer fluid

#212
20130131387
2013-05-23

Methods and compounds for improving sulfide scavenging activity

#213
20130118996
2013-05-16

HEXAHYDROTRIAZINES, SYNTHESIS AND USE

#214
20130090271
2013-04-11

INHIBITING CORROSION CAUSED BY AQUEOUS ALDEHYDE SOLUTIONS

#215
20130089460
2013-04-11

INHIBITING CORROSION CAUSED BY AQUEOUS ALDEHYDE SOLUTIONS

#216
20120329930
2012-12-27

Hydrogen sulfide scavenger for use in hydrocarbons

#217
20120302468
2012-11-29

FORMULATIONS AND USES OF DRILLING FLUIDS CONTAINING VISCOSIFIED PHOSPHATE BRINE

#218
20120244228
2012-09-27

Chlorine dioxide precursor and methods of using same

#219
20120241361
2012-09-27

Synergistic H2S/mercaptan scavengers using glyoxal

#220
20120220500
2012-08-30

Process for removal of hydrogen sulfide in downhole oilfield applications

#221
20120202721
2012-08-09

Electrolyzed water—amine compositions and methods of use

#222
20120190598
2012-07-26

Metallic nanoparticle biocide in industrial applications

#223
20120152857
2012-06-21

Non-nitrogen sulfide sweeteners

#224
20120149117
2012-06-14

Hydrogen sulfide (HS) detection using functionalized nanoparticles

#225
20120094878
2012-04-19

Non-damaging bimodal stimulation composition and method of use thereof

#226
20120067566
2012-03-22

Method for the use of nitrates and nitrate reducing bacteria in hydraulic fracturing

#227
20120034313
2012-02-09

Microbiocide/Sulfide Control Blends

#228
20120015852
2012-01-19

Nanofluids and methods of use for drilling and completion fluids

#229
20110132602
2011-06-09

Systems and methods for producing oil and/or gas

#230
20110111507
2011-05-12

Downhole spectroscopic hydrogen sulfide detection

#231
20110104809
2011-05-05

Downhole spectroscopic hydrogen sulfide detection

#232
20110094750
2011-04-28

SYSTEMS AND METHODS FOR PRODUCING OIL AND/OR GAS

#233
20100219379
2010-09-02

Corrosion inhibitors containing amide surfactants for a fluid

#234
20100175875
2010-07-15

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

#235
20100163255
2010-07-01

Process for preventing or remediating trithiazine deposition in high HS wells

#236
20100137170
2010-06-03

DUAL USE WELL TREATMENT COMPOSITION

#237
20100108315
2010-05-06

Method for reducing the H2S content of an H2S-containing subterranean formation

#238
20100105580
2010-04-29

Polymers for oilfield applications

#239
20100056399
2010-03-04

Polyelectrolyte complexes for oil and gas applications

#240
20090288822
2009-11-26

Mitigation of elemental sulfur deposition during production of hydrocarbon gases

#241
20090277625
2009-11-12

Compositions For Reducing Or Preventing The Degradation Of Articles Used In A Subterranean Environment And Methods Of Use Thereof

#242
20090229827
2009-09-17

Treatment fluids having biocide and friction reducing properties and associated methods

#243
20090107667
2009-04-30

Downhole spectroscopic hydrogen sulfide detection

#244
20080058229
2008-03-06

Polyelectrolyte complexes for oil and gas applications

#245
20080053920
2008-03-06

Scavenging hydrogen sulfide and/or mercaptans from fluid and gas streams

#246
20080039344
2008-02-14

Composition and method for chelated scavenging compounds

#247
20060162928
2006-07-27

Process for treating a formation

#248
20060096758
2006-05-11

Method of treating an oil or gas well with biodegradable low toxicity fluid system

#249
20050263739
2005-12-01

Method and composition to decrease iron sulfide deposits in pipe lines

#250
20050238556
2005-10-27

Method of scavenging hydrogen sulfide and/or mercaptans from fluid and gas streams

#251
20050209107
2005-09-22

Composition and process for the treatment of hydrogen sulfide

#252
20050170975
2005-08-04

Process for treating an oil well

#253
20050170974
2005-08-04

Process for treating an oil well

#254
19073674
2025-10-14

Wellbore and geologic formation desulfurization process

#255
18966737
2025-08-26

Method for treating a well bore to remove hydrogen sulfide

#256
18911321
2025-08-26

Hydrogen sulfide treatment method for crude oil/sour gas

#257
18810299
2024-12-31

Water-based drilling fluid formulated using MnZnFe-layered triple hydroxide and a process for scavenging hydrogen sulfide from subterranean geological formations

#258
18809440
2025-04-15

Process and material for removing hydrogen sulfide from subterranean geological formations during drilling operations

#259
18792758
2025-01-14

Process for removing hydrogen sulfide from subterranean geological formations with a layered triple hydroxide material in a water-based drilling fluid

#260
18764927
2024-11-19

Removing hydrogen sulfide from subterranean geological formation with a copper magnesium iron layered triple hydroxide material in a water-based drilling fluid

#261
18763303
2024-10-29

Removing hydrogen sulfide from subterranean geological formation with a copper magnesium iron layered triple hydroxide zeolite material in a water-based drilling fluid

#262
18648003
2025-04-08

Method of removing hydrogen sulfide from a subterranean geological formation with an imidazolate-based nanomaterial in an oil-based drilling fluid

#263
18622674
2025-09-30

Method of removing hydrogen sulfide from a subterranean geological formation with a zeolitic imidazolate framework in waste cooking oil-based drilling fluids

#264
18201155
2024-09-10

Stabilizing scavenger formulations in the presence of excess formaldehyde for storage at elevated temperatures

#265
17857411
2023-07-25

Hydrogen sulfide mitigating drilling fluid and method of drilling subterranean geological formation

#266
17830932
2023-09-05

Method of removing sulfide-containing scale

#267
17751809
2022-11-08

Vegetable oil invert emulsion hydrogen sulfide mitigating drilling fluid and method of drilling subterranean geological formation

#268
17731667
2024-10-15

Method for neutralizing hydrogen sulfide in a wellbore with a venturi jet pump and oxidants

#269
17558392
2023-02-21

Increasing scavenging efficiency of HS scavenger by adding linear polymer