DE69109904D1 - Flüssigmembranmethode zur katalytischen Auflösung von Kesselstein. - Google Patents
Flüssigmembranmethode zur katalytischen Auflösung von Kesselstein.Info
- Publication number
- DE69109904D1 DE69109904D1 DE69109904T DE69109904T DE69109904D1 DE 69109904 D1 DE69109904 D1 DE 69109904D1 DE 69109904 T DE69109904 T DE 69109904T DE 69109904 T DE69109904 T DE 69109904T DE 69109904 D1 DE69109904 D1 DE 69109904D1
- Authority
- DE
- Germany
- Prior art keywords
- acid
- scale
- composition
- liquid membrane
- membrane method
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C02F5/12—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 containing nitrogen
-
- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/493,165 US5026481A (en) | 1989-04-03 | 1990-03-14 | Liquid membrane catalytic scale dissolution method |
US07/493,166 US5032280A (en) | 1990-03-14 | 1990-03-14 | Liquid membrane catalytic scale dissolution method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69109904D1 true DE69109904D1 (de) | 1995-06-29 |
DE69109904T2 DE69109904T2 (de) | 1995-10-05 |
Family
ID=27050985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69109904T Expired - Lifetime DE69109904T2 (de) | 1990-03-14 | 1991-03-07 | Flüssigmembranmethode zur katalytischen Auflösung von Kesselstein. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0447120B1 (de) |
AT (1) | ATE123108T1 (de) |
CA (1) | CA2038109C (de) |
DE (1) | DE69109904T2 (de) |
NO (1) | NO180571C (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9510563D0 (en) * | 1995-05-24 | 1995-07-19 | Atomic Energy Authority Uk | Well inhibition |
GB2359104A (en) * | 2000-02-11 | 2001-08-15 | Norske Stats Oljeselskap | Method of treating hydrocarbon well to inhibit water production problems |
WO2001089670A1 (en) * | 2000-05-23 | 2001-11-29 | National University Of Singapore | Method for metal recovery from aqueous solutions |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3793209A (en) * | 1971-08-09 | 1974-02-19 | Dow Chemical Co | Organic deposit and calcium sulfate scale removal emulsion and process |
US4030548A (en) * | 1976-04-28 | 1977-06-21 | Shell Oil Company | Economically dissolving barium sulfate scale with a chelating agent |
US4621694A (en) * | 1985-08-30 | 1986-11-11 | Mobil Oil Corporation | Use of a liquid membrane for scale removal |
-
1991
- 1991-03-07 AT AT91301889T patent/ATE123108T1/de not_active IP Right Cessation
- 1991-03-07 DE DE69109904T patent/DE69109904T2/de not_active Expired - Lifetime
- 1991-03-07 EP EP91301889A patent/EP0447120B1/de not_active Expired - Lifetime
- 1991-03-12 NO NO910972A patent/NO180571C/no not_active IP Right Cessation
- 1991-03-12 CA CA002038109A patent/CA2038109C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2038109C (en) | 2001-08-28 |
EP0447120A1 (de) | 1991-09-18 |
CA2038109A1 (en) | 1991-09-15 |
DE69109904T2 (de) | 1995-10-05 |
NO910972L (no) | 1991-09-16 |
NO180571C (no) | 1997-05-14 |
NO910972D0 (no) | 1991-03-12 |
EP0447120B1 (de) | 1995-05-24 |
NO180571B (no) | 1997-02-03 |
ATE123108T1 (de) | 1995-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |