FR2157777A2 - Preventing corrosion in oil wells - with hydrazine and nitrogenous corrosion inhibitor - Google Patents
Preventing corrosion in oil wells - with hydrazine and nitrogenous corrosion inhibitorInfo
- Publication number
- FR2157777A2 FR2157777A2 FR7219470A FR7219470A FR2157777A2 FR 2157777 A2 FR2157777 A2 FR 2157777A2 FR 7219470 A FR7219470 A FR 7219470A FR 7219470 A FR7219470 A FR 7219470A FR 2157777 A2 FR2157777 A2 FR 2157777A2
- Authority
- FR
- France
- Prior art keywords
- alkyl radical
- corrosion
- nitrogenous
- corrosion inhibitor
- hydrazine
- 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.)
- Pending
Links
Classifications
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Corrosion in wells and associated systems is prevented by injecting 0.01-1 ppm. residual hydrazine and 2-200 ppm. of a nitrogenous corrosion inhibitor which is (a) a salt obtd. by reacting where R is a 10-20C alkyl radical and Y is H or a not >8C hydroxyalkyl or alkylamine radical, with HCL or an org. 1-14C acid, (b) a quat. ammonium salt of formula: where R is a 5-25C alkyl radical and R' is an alkyl radical with 1 or 5-25C, nc) a tert. amine of formula: where R is a 10-20C alkyl radical and x and y are integers 2-15, and/or (d) a diamine of formula R1-NH-R-NH2, where R is a 2-4C alkyl radical and R1 is a 8-20C alkyl radical. The concns. relate to the water produced in, or injected into, the well. The well may be of the gas-lift or water-injection type. The hydrazie and the corrosion inhibitor shows a synergistic effect.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19400971A | 1971-10-29 | 1971-10-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2157777A2 true FR2157777A2 (en) | 1973-06-08 |
Family
ID=22715948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7219470A Pending FR2157777A2 (en) | 1971-10-29 | 1972-05-31 | Preventing corrosion in oil wells - with hydrazine and nitrogenous corrosion inhibitor |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS4880443A (en) |
FR (1) | FR2157777A2 (en) |
SE (1) | SE350778B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0275651A1 (en) * | 1987-01-02 | 1988-07-27 | Petrolite Corporation | Carbon dioxide corrosion inhibiting composition and method of use thereof |
-
1971
- 1971-12-28 SE SE1671271A patent/SE350778B/xx unknown
-
1972
- 1972-04-10 JP JP3525072A patent/JPS4880443A/ja active Pending
- 1972-05-31 FR FR7219470A patent/FR2157777A2/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0275651A1 (en) * | 1987-01-02 | 1988-07-27 | Petrolite Corporation | Carbon dioxide corrosion inhibiting composition and method of use thereof |
Also Published As
Publication number | Publication date |
---|---|
SE350778B (en) | 1972-11-06 |
JPS4880443A (en) | 1973-10-27 |
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