DE3260306D1 - Thickened aqueous acid solutions, and their use, especially for descaling - Google Patents

Thickened aqueous acid solutions, and their use, especially for descaling

Info

Publication number
DE3260306D1
DE3260306D1 DE8282400193T DE3260306T DE3260306D1 DE 3260306 D1 DE3260306 D1 DE 3260306D1 DE 8282400193 T DE8282400193 T DE 8282400193T DE 3260306 T DE3260306 T DE 3260306T DE 3260306 D1 DE3260306 D1 DE 3260306D1
Authority
DE
Germany
Prior art keywords
aqueous acid
acid solutions
descaling
thickened aqueous
thickened
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282400193T
Other languages
German (de)
English (en)
Inventor
Daniel Siegel
Michel Soreau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanofi Aventis France
Original Assignee
Francaise Hoechst Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9254988&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3260306(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Francaise Hoechst Ste filed Critical Francaise Hoechst Ste
Application granted granted Critical
Publication of DE3260306D1 publication Critical patent/DE3260306D1/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/72—Eroding chemicals, e.g. acids
    • C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • C09K8/78—Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing sealing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Detergent Compositions (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
DE8282400193T 1981-02-09 1982-02-04 Thickened aqueous acid solutions, and their use, especially for descaling Expired DE3260306D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8102506A FR2499582A1 (fr) 1981-02-09 1981-02-09 Solutions aqueuses acides epaissies et leur application notamment pour le detartrage

Publications (1)

Publication Number Publication Date
DE3260306D1 true DE3260306D1 (en) 1984-08-09

Family

ID=9254988

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282400193T Expired DE3260306D1 (en) 1981-02-09 1982-02-04 Thickened aqueous acid solutions, and their use, especially for descaling

Country Status (4)

Country Link
EP (1) EP0058597B2 (enExample)
AT (1) ATE8240T1 (enExample)
DE (1) DE3260306D1 (enExample)
FR (1) FR2499582A1 (enExample)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1489341A (fr) * 1966-08-09 1967-07-21 Dow Chemical Co Compositions et procédé pour le traitement de puits de forage
US3943060A (en) * 1974-07-26 1976-03-09 Calgon Corporation Friction reducing
US4103742A (en) * 1975-12-24 1978-08-01 Phillips Petroleum Company Method for acidizing subterranean formations
US4231882A (en) * 1978-10-20 1980-11-04 Halliburton Company Treating subterranean well formations

Also Published As

Publication number Publication date
FR2499582B1 (enExample) 1983-04-22
EP0058597A1 (fr) 1982-08-25
EP0058597B2 (fr) 1987-02-04
ATE8240T1 (de) 1984-07-15
FR2499582A1 (fr) 1982-08-13
EP0058597B1 (fr) 1984-07-04

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Legal Events

Date Code Title Description
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee