DE2733852C3 - - Google Patents
Info
- Publication number
- DE2733852C3 DE2733852C3 DE19772733852 DE2733852A DE2733852C3 DE 2733852 C3 DE2733852 C3 DE 2733852C3 DE 19772733852 DE19772733852 DE 19772733852 DE 2733852 A DE2733852 A DE 2733852A DE 2733852 C3 DE2733852 C3 DE 2733852C3
- Authority
- DE
- Germany
- 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
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
- C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772733852 DE2733852B2 (de) | 1977-07-27 | 1977-07-27 | Verfahren zur Scherbehandlung wäßriger Lösungen von partiell hydrolysierten Polyacrylamiden |
| CA308,150A CA1102030A (en) | 1977-07-27 | 1978-07-26 | Process for the treatment of aqueous solutions of partially hydrolyzed polyacrylamides |
| FR7822187A FR2398769A1 (fr) | 1977-07-27 | 1978-07-26 | Procede perfectionne pour traiter des solutions aqueuses de polyacrylamides servant a l'extraction du petrole |
| AT548178A AT365737B (de) | 1977-07-27 | 1978-07-27 | Verfahren zur behandlung waessriger loesungen von partiell hydrolysierten polyacrylamiden |
| GB7831355A GB2001999B (en) | 1977-07-27 | 1978-07-27 | Treatment of aqueous solutions of partially hydrolyzed polyacrylamides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772733852 DE2733852B2 (de) | 1977-07-27 | 1977-07-27 | Verfahren zur Scherbehandlung wäßriger Lösungen von partiell hydrolysierten Polyacrylamiden |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2733852A1 DE2733852A1 (de) | 1979-02-08 |
| DE2733852B2 DE2733852B2 (de) | 1980-02-21 |
| DE2733852C3 true DE2733852C3 (US07534539-20090519-C00452.png) | 1980-10-09 |
Family
ID=6014952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772733852 Granted DE2733852B2 (de) | 1977-07-27 | 1977-07-27 | Verfahren zur Scherbehandlung wäßriger Lösungen von partiell hydrolysierten Polyacrylamiden |
Country Status (5)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3422612A1 (de) * | 1984-06-19 | 1985-12-19 | Basf Ag, 6700 Ludwigshafen | Verfahren zur lagerstaettenbezogenen verbesserung der eigenschaften waessriger polymerloesungen, die zum polymerfluten dienen |
| US5139087A (en) * | 1991-05-31 | 1992-08-18 | Union Oil Company Of California | Method for ensuring injectivity of polymer solutions |
| DE4338870C1 (de) * | 1993-11-13 | 1994-11-17 | Rwe Dea Ag | Polymerflutverfahren zur Gewinnung von Erdöl aus untertägigen Lagerstätten |
| DE4402547C1 (de) * | 1994-01-28 | 1995-03-23 | Stockhausen Chem Fab Gmbh | Vorrichtung und Verfahren zum Auflösen von wasserlöslichen, pulverförmigen Polymerisaten |
-
1977
- 1977-07-27 DE DE19772733852 patent/DE2733852B2/de active Granted
-
1978
- 1978-07-26 FR FR7822187A patent/FR2398769A1/fr active Granted
- 1978-07-26 CA CA308,150A patent/CA1102030A/en not_active Expired
- 1978-07-27 GB GB7831355A patent/GB2001999B/en not_active Expired
- 1978-07-27 AT AT548178A patent/AT365737B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2001999A (en) | 1979-02-14 |
| DE2733852B2 (de) | 1980-02-21 |
| ATA548178A (de) | 1981-06-15 |
| AT365737B (de) | 1982-02-10 |
| DE2733852A1 (de) | 1979-02-08 |
| FR2398769B1 (US07534539-20090519-C00452.png) | 1982-08-20 |
| GB2001999B (en) | 1982-02-17 |
| FR2398769A1 (fr) | 1979-02-23 |
| CA1102030A (en) | 1981-05-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: RWE-DEA AG FUER MINERALOEL UND CHEMIE, 2000 HAMBUR |
|
| 8339 | Ceased/non-payment of the annual fee |