ClassID:

104311

C09K8/54 - page 3 - 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 inhibition of corrosion in boreholes or wells

Recent Application in this class:
#601
20100099584
2010-04-22

Mutual solvent system and method for improved oil and gas permeability in high temperature formations

#602
20100087340
2010-04-08

Methods and compositions for inhibiting metal corrosion

#603
20100084612
2010-04-08

Corrosion inhibitors for a fluid

#604
20100056399
2010-03-04

Polyelectrolyte complexes for oil and gas applications

#605
20100004145
2010-01-07

Fluid loss pills

#606
20090324820
2009-12-31

Systems, Methods, and Compositions for the Inhibition of Corrosion of Metallic Surfaces

#607
20090302276
2009-12-10

ANTICORROSIVE COMPOSITION

#608
20090298723
2009-12-03

Method for Treating Wells by Small-Size Additive-Containing Emulsions

#609
20090250381
2009-10-08

Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials

#610
20090229827
2009-09-17

Treatment fluids having biocide and friction reducing properties and associated methods

#611
20090221455
2009-09-03

METHODS AND COMPOSITIONS FOR PROTECTING STEELS IN ACIDIC SOLUTIONS

#612
20090181867
2009-07-16

CORROSION INHIBITORS FOR OILFIELD APPLICATIONS

#613
20090180992
2009-07-16

COMPOSITIONS AND METHODS FOR THE TREATMENT, MITIGATION AND REMEDIATION OF BIOCORROSION

#614
20090163385
2009-06-25

Well treatment process

#615
20090156432
2009-06-18

Corrosion inhibitor intensifier compositions and associated methods

#616
20090155599
2009-06-18

CORROSION AND SCALE INHIBITION COMPOSITIONS AND METHODS OF USE THEREOF

#617
20090152163
2009-06-18

SYSTEM FOR TREATING PETROLEUM AND PETROCHEMICAL SLOP OIL AND SLUDGE WASTES

#618
20090149356
2009-06-11

Environmentally friendly bis-quaternary compounds for inhibiting corrosion and removing hydrocarbonaceous deposits in oil and gas applications

#619
20090131283
2009-05-21

Imidazoline-based heterocyclic foamers for downhole injection

#620
20090118380
2009-05-07

Process for the preparation of water-in-oil and oil-in-water nanoemulsions

#621
20090105098
2009-04-23

Method of inhibiting corrosion in a conduit

#622
20090104358
2009-04-23

CORROSION AND SCALE INHIBITION COMPOSITIONS AND METHODS OF USE THEREOF

#623
20090057618
2009-03-05

Corrosion inhibitors containing amphoteric surfactants

#624
20090057617
2009-03-05

Corrosion inhibitors containing anionic surfactants

#625
20090057616
2009-03-05

Corrosion inhibitors containing cationic surfactants

#626
20090057615
2009-03-05

Corrosion inhibitors containing nonionic surfactants

#627
20090050853
2009-02-26

Liquid composition suitable for use as a corrosion inhibitor and a method for its preparation

#628
20090013617
2009-01-15

Undercarriage for a telescopic frame

#629
20090001188
2009-01-01

System and process for inhibitor injection

#630
20080274013
2008-11-06

Method of using solubilized transition metal oxides in well operations

#631
20080272342
2008-11-06

Chemical composition useful as corrosion inhibitor

#632
20080234148
2008-09-25

Method of Increasing pH of High-Density Brines

#633
20080227669
2008-09-18

Corrosion-inhibiting additives, treatment fluids, and associated methods

#634
20080194795
2008-08-14

Oxidized and maleated compounds and compositions

#635
20080181813
2008-07-31

Novel Mercaptan-Based Corrosion Inhibitors

#636
20080179570
2008-07-31

Maleated and oxidized fatty acids

#637
20080153718
2008-06-26

Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acids

#638
20080146464
2008-06-19

Corrosion inhibitor composition comprising a built-in intensifier

#639
20080139414
2008-06-12

Corrosion inhibitor intensifier compositions and associated methods

#640
20080058229
2008-03-06

Polyelectrolyte complexes for oil and gas applications

#641
20080058226
2008-03-06

Method for controlled placement of additives in oil and gas production

#642
20070287641
2007-12-13

Acidic treatment fluids and associated methods

#643
20070261853
2007-11-15

Method of inhibiting and/or preventing corrosion in oilfield treatment applications

#644
20070261842
2007-11-15

Treatment Process for Inhibiting Top of Line Corrosion of Pipes Used in the Petroleum Industry

#645
20070254816
2007-11-01

Method for controlled placement of chemicals and composition useful for practicing same

#646
20070173417
2007-07-26

Porous composites containing hydrocarbon-soluble well treatment agents and methods for using the same

#647
20070129256
2007-06-07

Additives for inhibiting the formation of gas hydrates

#648
20070114024
2007-05-24

Anti-oxidizing process for non-cryogenic nitrogen

#649
20070071887
2007-03-29

Methods of inhibiting corrosion of a metal surface

#650
20070069182
2007-03-29

Corrosion inhibitor compositions and associated methods

#651
20070010404
2007-01-11

Corrosion inhibitor or intensifier for use in acidizing treatment fluids

#652
20060234870
2006-10-19

Methods and compositions for delaying the release of treatment chemicals

#653
20060205609
2006-09-14

Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids

#654
20060201676
2006-09-14

Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids

#655
20060194700
2006-08-31

Corrosion inhibitor systems for low, moderate and high temperature fluids and methods for making and using same

#656
20060186380
2006-08-24

Corrosion inhibitor

#657
20060180794
2006-08-17

Polyamine-based corrosion inhibitors

#658
20060166838
2006-07-27

Method of preparing microparticles

#659
20060166835
2006-07-27

Microemulsion containing oil field chemicals useful for oil and gas field applications

#660
20060162928
2006-07-27

Process for treating a formation

#661
20060108110
2006-05-25

Coated tools for use in oil well pipes

#662
20060062753
2006-03-23

Polymeric quaternary ammonium salts useful as corrosion inhibitors and biocides

#663
20060040831
2006-02-23

Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil

#664
20060013798
2006-01-19

Bis-quaternary ammonium salt corrosion inhibitors

#665
20050193923
2005-09-08

System for treating petroleum and petrochemical slop oil and sludge wastes

#666
20050189113
2005-09-01

Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids

#667
20050170975
2005-08-04

Process for treating an oil well

#668
20050170974
2005-08-04

Process for treating an oil well

#669
20050159559
2005-07-21

Method for scale inhibition in oil wells

#670
20050156137
2005-07-21

Nitrogen-containing compounds as corrosion inhibitors

#671
20050153845
2005-07-14

Method of increasing pH of high-density brines

#672
20050123437
2005-06-09

Methods and compositions for inhibiting metal corrosion

#673
20050101495
2005-05-12

Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability

#674
20050039911
2005-02-24

Maximizing the efficacy of thiocyanate scavengers in oilfield brines

#675
19258959
2025-12-16

Composition and methods for inhibiting corrosion of metal during acidizing a wellbore in a subterranean formation for fracking

#676
19170589
2025-11-18

Composition and methods for inhibiting corrosion of metal during acidizing a wellbore in a subterranean formation for fracking

#677
19073674
2025-10-14

Wellbore and geologic formation desulfurization process

#678
18966737
2025-08-26

Method for treating a well bore to remove hydrogen sulfide

#679
18911321
2025-08-26

Hydrogen sulfide treatment method for crude oil/sour gas

#680
18809440
2025-04-15

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

#681
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

#682
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

#683
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

#684
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

#685
18433333
2024-08-27

Anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation and preparation method thereof

#686
18360426
2024-08-20

Bistable system for the controlled release of corrosion inhibitors

#687
17751809
2022-11-08

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

#688
17700978
2023-05-16

Corrosion inhibition compositions and methods of use

#689
17700977
2023-06-06

Corrosion inhibition compositions and methods of use

#690
17558392
2023-02-21

Increasing scavenging efficiency of HS scavenger by adding linear polymer

#691
17315971
2022-07-12

One-component type multi-functional fracturing fluid additive and process for preparing the same

#692
17035098
2022-01-04

Sealants and lubricants for wireline operations

#693
16415396
2020-04-21

Methods of inhibiting corrosion with a pyrazine corrosion inhibitor

#694
15584669
2018-08-21

Plugging and sealing subterranean formations