GB1418557A - Current cathodic protection system - Google Patents
Current cathodic protection systemInfo
- Publication number
- GB1418557A GB1418557A GB3417673A GB3417673A GB1418557A GB 1418557 A GB1418557 A GB 1418557A GB 3417673 A GB3417673 A GB 3417673A GB 3417673 A GB3417673 A GB 3417673A GB 1418557 A GB1418557 A GB 1418557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anodes
- supply
- supporting member
- cathodic protection
- marine structure
- 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
Links
- 238000004210 cathodic protection Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003989 dielectric material Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
Classifications
-
- 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
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/04—Controlling or regulating desired parameters
Abstract
1418557 Cathodic protection EXXON PRODUCTION RESEARCH CO 18 July 1973 [5 Oct 1972] 34176/73 Heading C7E An impressed current cathodic protection system for a marine structure comprises a supporting member 20 that can be lowered in the water into position adjacent said structure and later retrieved, an underwater power supply 30 on or in said supporting member for converting an applied alternating current to low voltage D.C., at least one anode 65, 66, on said supporting member, means for transmitting D.C. from 30 to said anode, and means for transmitting A.C. from a remote source to supply 30. The marine structure may be an oil-drilling rig, in which case 20 is a drill-pipe string, either of metal, when the anodes have dielectric pads between them and 20, or of dielectric material when the anodes are applied directly to 20, e.g. in countersunk grooves to minimize damage. An automatic potential controller may co-operate with supply 30 as in Fig.3 (not shown) so that the potential difference between the anodes and marine structure may be monitored continuously; the D.C. supply to the anodes may be pulsed. Alternative forms of carrier 20 are (1) a cable passing round a sheave on the sea-bed Fig.7 (not shown) and (2) a rod having transversely extending arms to which anodes are attached Fig.6, (not shown). The automatic potential controller may also be within pipe 20; the pipe may be liquid-filled for better cooling of the power supply, and the anodes may be of Pt on Ta, Pt on Nb, Pt on Ti, or Pt-studded Pb. An installation entirely under water, e.g. an oil-gas separator, may also be cathodically protected Fig.8, (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29540372A | 1972-10-05 | 1972-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1418557A true GB1418557A (en) | 1975-12-24 |
Family
ID=23137545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3417673A Expired GB1418557A (en) | 1972-10-05 | 1973-07-18 | Current cathodic protection system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3769521A (en) |
| AU (1) | AU475108B2 (en) |
| GB (1) | GB1418557A (en) |
| NO (1) | NO134494C (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164257A (en) * | 1977-12-15 | 1979-08-14 | Atlantic Richfield Company | Internal protection of well casing |
| US4170532A (en) * | 1978-04-11 | 1979-10-09 | C. E. Equipment, Inc. | Deep well platinized anode carrier for cathodic protection system |
| US4219807A (en) * | 1978-04-17 | 1980-08-26 | Cathodic Protection Services, Inc. | Sensor system for an impressed cathodic protection circuit |
| US4211625A (en) * | 1978-09-11 | 1980-07-08 | Borg-Warner Corporation | Impressed current cathodic protection system for submersible downhole pumping assembly |
| US4280124A (en) * | 1978-10-12 | 1981-07-21 | Wuertele James W | Corrosion detector |
| US4322633A (en) * | 1979-07-19 | 1982-03-30 | Brunswick Corporation | Marine cathodic protection system |
| US4415293A (en) * | 1982-04-05 | 1983-11-15 | Shell Oil Company | Offshore platform free of marine growth and method of reducing platform loading and overturn |
| US4484838A (en) * | 1982-04-09 | 1984-11-27 | Shell Oil Company | Method and apparatus for installing anodes at underwater locations on offshore platforms |
| US4506485A (en) * | 1983-04-12 | 1985-03-26 | State Of California, Department Of Transportation | Process for inhibiting corrosion of metal embedded in concrete and a reinforced concrete construction |
| US4609307A (en) * | 1984-11-05 | 1986-09-02 | Exxon Production Research Co. | Anode pod system for offshore structures and method of installation |
| US4690587A (en) * | 1985-10-21 | 1987-09-01 | Texaco Inc. | Corrosion detection for marine structure |
| US5814982A (en) * | 1997-07-02 | 1998-09-29 | Cc Technologies Systems, Inc. | Coupon test station for monitoring the effectiveness of cathodic protection |
| US6276455B1 (en) * | 1997-09-25 | 2001-08-21 | Shell Offshore Inc. | Subsea gas separation system and method for offshore drilling |
| NO994094D0 (en) * | 1999-08-24 | 1999-08-24 | Aker Riser Systems As | riser |
| US20080105562A1 (en) * | 2006-11-07 | 2008-05-08 | Marine Project Management, Inc. | Systems and methods for underwater impressed current cathodic protection |
| GB2474084A (en) * | 2009-10-13 | 2011-04-06 | Aish Technologies Ltd | Impressed current cathodic protection (ICCP) |
| NO335359B1 (en) * | 2010-10-27 | 2014-12-01 | Roxar Flow Measurement As | connector |
| US8607878B2 (en) * | 2010-12-21 | 2013-12-17 | Vetco Gray Inc. | System and method for cathodic protection of a subsea well-assembly |
| JP2013219972A (en) * | 2012-04-11 | 2013-10-24 | Ihi Corp | Underwater power supply system |
| US9803887B2 (en) | 2013-06-24 | 2017-10-31 | Rheem Manufacturing Company | Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters |
| CN105039999B (en) * | 2015-08-20 | 2018-03-16 | 南方电网科学研究院有限责任公司 | A kind of control method realized to D. C. Electric transmission earthed pole alternating cathodic protection |
| US10309019B2 (en) * | 2017-08-01 | 2019-06-04 | Frank Seth Gaunce | Corrosion protection methods for the protection of the national infrastructure of copper/iron, copper, lead/iron potable water distribution systems and the national iron-based infrastructure |
| US11634822B2 (en) * | 2017-09-15 | 2023-04-25 | Onesubsea Ip Uk Limited | Systems and methods for providing monitored and controlled cathodic protection potential |
| CN113814145A (en) * | 2021-09-07 | 2021-12-21 | 长江三峡通航管理局 | Ship lock herringbone door metal structure anticorrosion treatment process |
| CN114023500B (en) * | 2021-10-28 | 2022-07-26 | 大连理工大学 | Mesh auxiliary anode and reference electrode composite cable device for floating platform |
| CN114875413B (en) * | 2022-05-18 | 2024-01-09 | 唐彪 | Hull impressed current cathodic protection device and method capable of adjusting protection potential |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL121792C (en) * | 1958-05-09 | |||
| US3616418A (en) * | 1969-12-04 | 1971-10-26 | Engelhard Min & Chem | Anode assembly for cathodic protection systems |
| US3692650A (en) * | 1970-08-24 | 1972-09-19 | Signal Oil & Gas Co | Cathodic protection system |
-
1972
- 1972-10-05 US US00295403A patent/US3769521A/en not_active Expired - Lifetime
-
1973
- 1973-07-17 AU AU58173/73A patent/AU475108B2/en not_active Expired
- 1973-07-18 GB GB3417673A patent/GB1418557A/en not_active Expired
- 1973-08-23 NO NO3334/73A patent/NO134494C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU5817373A (en) | 1975-01-23 |
| AU475108B2 (en) | 1976-08-12 |
| NO134494B (en) | 1976-07-12 |
| NO134494C (en) | 1976-10-20 |
| US3769521A (en) | 1973-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |