ClassID:

104307

C09K8/524 - 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 preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes

Recent Application in this class:
#601
20080200354
2008-08-21

Breaker and displacement fluid and method of use

#602
20080176770
2008-07-24

Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications

#603
20080173452
2008-07-24

Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications

#604
20080110618
2008-05-15

In situ fluid formation for cleaning oil- or synthetic oil-based mud

#605
20080096772
2008-04-24

Asphaltene Inhibition

#606
20080069961
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#607
20080067129
2008-03-20

INHIBITION OF PARAFFIN WALL DEPOSITION IN OIL LINES

#608
20080067108
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#609
20080066784
2008-03-20

Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup

#610
20080058226
2008-03-06

Method for controlled placement of additives in oil and gas production

#611
20080047712
2008-02-28

Method for simultaneous removal of asphaltene and/or paraffin and scale from producing oil wells

#612
20080035340
2008-02-14

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

#613
20080035339
2008-02-14

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

#614
20080029438
2008-02-07

Soap Control Agent

#615
20080020949
2008-01-24

Method for removing asphaltene deposits

#616
20080006408
2008-01-10

Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells

#617
20070295640
2007-12-27

Compositions and methods of using same in producing heavy oil and bitumen

#618
20070281866
2007-12-06

Aloe derived scale inhibitor

#619
20070265171
2007-11-15

Method of using water-in-oil emulsion to remove oil base or synthetic oil base filter cake

#620
20070251693
2007-11-01

Compositions and methods for delivering an organic solvent to a downhole portion of a wellbore or to a portion of a pipeline

#621
20070225174
2007-09-27

Method of treating oil or gas well with biodegradable emulsion

#622
20070221539
2007-09-27

Additives for crude oils

#623
20070213231
2007-09-13

Paraffin inhibitor compositions and their use in oil and gas production

#624
20070173417
2007-07-26

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

#625
20070169934
2007-07-26

Method for Stimulating a Petroleum Well

#626
20070135310
2007-06-14

Compositions for treating a well penetrating a subterranean formation and uses thereof

#627
20070124990
2007-06-07

Asphaltene dispersants for petroleum products

#628
20070116524
2007-05-24

In-situ surfactant and chemical oxidant flushing for complete remediation of contaminants and methods of using same

#629
20070114036
2007-05-24

Silicate-containing additives for well bore treatments and associated methods

#630
20070095723
2007-05-03

Oxidized olefin wax pour point depressants

#631
20070062698
2007-03-22

Fluid with asphaltene control

#632
20070027046
2007-02-01

Novel Dispersants

#633
20060219409
2006-10-05

Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells

#634
20060205609
2006-09-14

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

#635
20060201676
2006-09-14

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

#636
20060148656
2006-07-06

Silicate-containing additives for well bore treatments and associated methods

#637
20060144594
2006-07-06

Silicate-containing additives for well bore treatments and associated methods

#638
20060142172
2006-06-29

Cleaning compositions for oil-gas wells, well lines, casings, equipment, storage tanks, etc., and method of use

#639
20060113076
2006-06-01

Substances to stimulate the extraction of crudeoil and a method of processing them

#640
20060096758
2006-05-11

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

#641
20060079434
2006-04-13

Formulations useful as asphaltene dispersants in petroleum products

#642
20060060527
2006-03-23

Petrol-biochemical method for the treatment and prevention of oil-in-water and water-in-oil emulsions in oil-wells and surface equipment

#643
20060060350
2006-03-23

Method for the treatment and prevention of asphaltene-paraffin-vax precipitates in oil-wells, wellheads and pipelines by the use of biocolloid suspensions

#644
20060042796
2006-03-02

Method for displacing oil base drilling muds and/or residues from oil base drilling mud using water-in-oil emulsion

#645
20060035793
2006-02-16

Chemical composition of matter for the liquefaction and dissolution of asphaltene and paraffin sludges into petroleum crude oils and refined products at ambient temperatures and method of use

#646
20060011341
2006-01-19

Method for stimulating a petroleum well

#647
20060003899
2006-01-05

Drilling fluid and methods of use thereof

#648
20050282915
2005-12-22

Methods for inhibiting naphthenate salt precipitates and naphthenate-stabilized emulsions

#649
20050282711
2005-12-22

Low dosage naphthenate inhibitors

#650
20050215437
2005-09-29

Paraffin inhibitors

#651
20050193923
2005-09-08

System for treating petroleum and petrochemical slop oil and sludge wastes

#652
20050189113
2005-09-01

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

#653
20050126784
2005-06-16

Treatment of oil wells

#654
20050091915
2005-05-05

Use of sulphonated alkyl phenol formaldehydes in the stabilization of ashphaltenes in crude oil

#655
20050082231
2005-04-21

Method of controlling asphaltene precipitation in a fluid

#656
20050070443
2005-03-31

Additive for enhanced treatment of oil well contaminants

#657
20050000903
2005-01-06

Method for land improvement and microorganisms therefor

#658
19219804
2026-01-06

Method of oil recovery from subsurface reservoirs using improved carbon dioxide enhanced oil recovery

#659
17877968
2023-11-21

Formulations for dispersal of byproducts of oil field scavenger slurries and asphaltene deposits

#660
17834537
2024-10-29

Method for paraffin inhibiting

#661
17834295
2023-10-17

Wellbore cleaner for use in displacement trains

#662
17444758
2023-01-10

Citrate polyester additives for crude oil, mixtures of said additives and crude oil, and methods for producing said mixtures

#663
16850356
2020-07-28

Protic asphaltene ionic liquids as asphaltene stabilizer

#664
16653467
2020-10-27

Protic asphaltene ionic liquids as asphaltene stabilizer