WO2012166217A3 - Cathodic protection system for marine applications - Google Patents

Cathodic protection system for marine applications Download PDF

Info

Publication number
WO2012166217A3
WO2012166217A3 PCT/US2012/024842 US2012024842W WO2012166217A3 WO 2012166217 A3 WO2012166217 A3 WO 2012166217A3 US 2012024842 W US2012024842 W US 2012024842W WO 2012166217 A3 WO2012166217 A3 WO 2012166217A3
Authority
WO
WIPO (PCT)
Prior art keywords
anode
protection system
cathodic protection
base
assembly
Prior art date
Application number
PCT/US2012/024842
Other languages
French (fr)
Other versions
WO2012166217A2 (en
Inventor
William R. Schutt
Original Assignee
Matcor, Inc.
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
Application filed by Matcor, Inc. filed Critical Matcor, Inc.
Publication of WO2012166217A2 publication Critical patent/WO2012166217A2/en
Publication of WO2012166217A3 publication Critical patent/WO2012166217A3/en

Links

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
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/16—Electrodes characterised by the combination of the structure and the material
    • 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
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/18—Means for supporting electrodes
    • 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
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/31—Immersed structures, e.g. submarine structures

Abstract

An anode assembly for an impressed current cathodic protection system is arranged for disposition in a body of water to protect an associated structure. It includes an anode, an anode support and a base and is arranged to be electrically connected to the cathodic protection system by an electrical conductor. The base is a weighted member. The anode is of a spherical shape and comprises a hollow titanium body coated with a mixed metal oxide and filled with a non-conductive material. The anode support includes an elongate titanium tube projecting upward from the base and having a top portion to which the anode is welded, whereupon the anode is disposed above the bed of the body of water. The anode assembly is connected to the electrical conductor by a socket including an electrical connector mounted in a box on the anode support assembly.
PCT/US2012/024842 2011-05-31 2012-02-13 Cathodic protection system for marine applications WO2012166217A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161491363P 2011-05-31 2011-05-31
US61/491,363 2011-05-31
US13/366,689 US8557089B2 (en) 2011-05-31 2012-02-06 Cathodic protection system for marine applications
US13/366,689 2012-02-06

Publications (2)

Publication Number Publication Date
WO2012166217A2 WO2012166217A2 (en) 2012-12-06
WO2012166217A3 true WO2012166217A3 (en) 2013-01-24

Family

ID=45809604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/024842 WO2012166217A2 (en) 2011-05-31 2012-02-13 Cathodic protection system for marine applications

Country Status (3)

Country Link
US (1) US8557089B2 (en)
CN (2) CN102808185B (en)
WO (1) WO2012166217A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8557089B2 (en) * 2011-05-31 2013-10-15 Matcor, Inc. Cathodic protection system for marine applications
CN103060819A (en) * 2012-12-24 2013-04-24 青岛钢研纳克检测防护技术有限公司 Installing device of remote site type auxiliary anode
US8721848B1 (en) * 2012-12-31 2014-05-13 Marine Project Management, Inc. Anode sled and method of assembly
WO2014179311A2 (en) * 2013-04-29 2014-11-06 Transistor Devices, Inc. D/B/A Tdi Power Systems and methods for impressed current cathodic protection
US10334841B2 (en) 2015-05-06 2019-07-02 Smith-Root, Inc. Electrical deterrent system for repelling pinnipeds
CN108179423A (en) * 2016-12-08 2018-06-19 中石化石油工程技术服务有限公司 Auxiliary anode device and installation method suitable for ocean platform impressed current cathodic protection system
CN106676542B (en) * 2017-03-15 2020-01-10 大连科迈尔防腐科技有限公司 Double-solid reference electrode device containing silver chloride and zinc and suitable for deep sea
CA3061869A1 (en) * 2017-05-01 2018-11-08 Farzad HASHEMI Cathodic protection of metal substrates
CN109855166B (en) * 2018-12-12 2022-02-22 北京金旗舰暖通科技有限公司 Anti-corrosion radiator
CN109338374B (en) * 2018-12-17 2024-01-26 青岛双瑞海洋环境工程股份有限公司 Cathode protection device
US10992137B2 (en) * 2019-04-12 2021-04-27 Dnv Gl Usa, Inc. Mitigation of alternating current in pipelines
FR3104177B1 (en) * 2019-12-04 2022-06-17 Controle Et Maintenance CATHODIC PROTECTION ANODE FOR OFFSHORE STRUCTURE AND CATHODIC PROTECTION DEVICE COMPRISING THE SAME
CN113675634B (en) * 2021-10-25 2021-12-31 华海通信技术有限公司 Ocean grounding electrode and ocean grounding equipment
CN115572977A (en) * 2022-11-07 2023-01-06 宁波众翮科技有限公司 Auxiliary anode structure for offshore wind power and manufacturing process thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516917A (en) * 1965-09-11 1970-06-23 Alexandre Maurin Cathode protection device
US4175021A (en) * 1978-03-06 1979-11-20 C. E. Equipment Co., Inc. Apparatus for preventing end effect in anodes
US4401540A (en) * 1980-10-29 1983-08-30 C.E. Equipment Co., Inc. Apparatus for reducing end effect in anodes

Family Cites Families (6)

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Publication number Priority date Publication date Assignee Title
US1991236A (en) * 1931-12-16 1935-02-12 Massachusetts Inst Technology Electrostatic generator
US4609307A (en) * 1984-11-05 1986-09-02 Exxon Production Research Co. Anode pod system for offshore structures and method of installation
US4614574A (en) * 1985-12-06 1986-09-30 The Dow Chemical Company Impressed current anode bed
CN100516310C (en) * 2004-12-15 2009-07-22 中国船舶重工集团公司第七二五研究所 Anode assembly with large discharge capacity for cathodic protection
CN100404725C (en) * 2006-04-26 2008-07-23 中国船舶重工集团公司第七二五研究所 Metal oxide anode assembly for cathode protection of ship
US8557089B2 (en) * 2011-05-31 2013-10-15 Matcor, Inc. Cathodic protection system for marine applications

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516917A (en) * 1965-09-11 1970-06-23 Alexandre Maurin Cathode protection device
US4175021A (en) * 1978-03-06 1979-11-20 C. E. Equipment Co., Inc. Apparatus for preventing end effect in anodes
US4401540A (en) * 1980-10-29 1983-08-30 C.E. Equipment Co., Inc. Apparatus for reducing end effect in anodes

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
FRANCO R J; BRITTON J; JAMROK W; GERMER G H; LUNA A: "Aft anode sled failure at a floating production unit hull", CORROSION, 11 March 2007 (2007-03-11) - 15 March 2007 (2007-03-15), NACE INternational Conferebnce & Expo, NASHVILLE, TN, pages 1 - 15, XP002686789 *
LEWIS E; FLANERY D: "Improvements in offshore cathodic protection retrofits", 47TH ANNUAL CONFERENCE OF THE AUSTRALASIAN CORROSION ASSOCIATION 2007: CORROSION CONTROL, 4 December 2007 (2007-12-04) - 5 December 2007 (2007-12-05), SYDNEY, NSW, XP009164430, ISBN: 978-1-62276-243-9 *
M.K. SEUBERT: "Design Parameters for Offshore Well Casing Cathodic Protection", PROCEEDINGS: 6TH MIDDLE EAST OIL SHOW, 11 March 1989 (1989-03-11) - 14 March 1989 (1989-03-14), MANAMA, BAHRAIN, XP009164416 *
P. PIERSON, K. P. BETHUNE, W. H. HARTT P. ANATHAKRISHNAN: "A New Equation for Potential Attenuation and Anode Current Output Projection for Cathodically Polarized Marine Pipelines and Risers", CORROSION, vol. 56, April 2000 (2000-04-01), pages 350 - 360, XP009164414, DOI: 10.5006/1.3280538 *
SURKEIN M B; LAFONTAINE J P: "Corrosion protection - Robust retrofit of a gravity based production structure in frozen arctic high scour conditions", 21ST INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, ISOPE-2011, 19 June 2011 (2011-06-19) - 24 June 2011 (2011-06-24), MAUI, HAWAII, USA, pages 1 - 7, XP009164429, ISBN: 978-1-880653-96-8 *

Also Published As

Publication number Publication date
CN202786438U (en) 2013-03-13
WO2012166217A2 (en) 2012-12-06
CN102808185A (en) 2012-12-05
US20120305386A1 (en) 2012-12-06
US8557089B2 (en) 2013-10-15
CN102808185B (en) 2015-03-11

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