CA2433736A1 - Subsea pipeline power transmission - Google Patents

Subsea pipeline power transmission Download PDF

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Publication number
CA2433736A1
CA2433736A1 CA002433736A CA2433736A CA2433736A1 CA 2433736 A1 CA2433736 A1 CA 2433736A1 CA 002433736 A CA002433736 A CA 002433736A CA 2433736 A CA2433736 A CA 2433736A CA 2433736 A1 CA2433736 A1 CA 2433736A1
Authority
CA
Canada
Prior art keywords
pipeline
power transmission
impedance means
transmission system
anode
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.)
Granted
Application number
CA002433736A
Other languages
French (fr)
Other versions
CA2433736C (en
Inventor
Steven Martin Hudson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Expro North Sea Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2433736A1 publication Critical patent/CA2433736A1/en
Application granted granted Critical
Publication of CA2433736C publication Critical patent/CA2433736C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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
    • C23F13/20—Conducting electric current to 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
    • 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
    • C23F2213/32—Pipes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Pipeline Systems (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

A subsea pipeline power transmission system comprasing a pipeline (1), an electoral power supply (4) connected to the pipeline at a first location, an d connection means provided on the pipeline at a second location for connectio n of a load (5) to the pipeline. Once connected the load 5 can receive elector al power from the power supply (4) via the pipeline (1). The pipeline has a plurality of cathodic protection anodes (2), each of which is electrically connected via respective impedance means to the pipeline.

Claims (9)

1. A subsea pipeline power transmission system comprising a pipeline, an electrical power supply connected to the pipeline at a first location, and connection means provided on the pipeline at a second location for connection of a load to the pipeline to allow the load to receive electrical power from the power supply via the pipeline wherein the pipeline has a plurality of cathodic protection anodes, each of which is electrically connected via respective impedance means to the pipeline.
2. A power transmission system according to claim 1 in which the impedance means is arranged to give a high impedance to time varying signals within at least one selected range of frequencies and a low impedance to signals outside the selected range.
3. A power transmission system according to claim 2 in which the impedance means is arranged so that the real part of the impedance is substantially zero, such that there is little or no attenuation of dc components of signals passing through the impedance means.
4. A power transmission system according to claim 2 or claim 3 in which the impedance means comprises inductance means.
5. A power transmission system according to claim 2 or claim 3 in which the impedance means comprises filter means.
6. A method of subsea pipeline power transmission along a pipeline having a plurality of cathodic protection anodes comprising the steps of:

applying electrical power to the pipeline at a first location; and electrically connecting a load to be supplied to the pipeline at a second location;

wherein each anode is electrically connected via respective impedance means to the pipeline.
7. Apparatus for use in a subsea pipeline power transmission system or method comprising:

an anode arrangement comprising, a cathode protection anode arranged for mounting on a pipeline and impedance means having one terminal connected to the anode and another terminal arranged for connection to said pipeline; and an electrical power supply arranged for electrical connection to a pipeline.
8. An anode arrangement for use in a subsea pipeline power transmission system, the arrangement comprising, a cathode protection anode arranged for mounting on a pipeline and impedance means having one terminal connected to the anode and another terminal arranged for connection to said pipeline.
9. An anode arrangement according to claim 8 including terminals allowing the connection of a load across the impedance means.
CA2433736A 2001-01-03 2001-12-20 Subsea pipeline power transmission Expired - Lifetime CA2433736C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0100104.9 2001-01-03
GBGB0100104.9A GB0100104D0 (en) 2001-01-03 2001-01-03 Subsea pipeline power transmission
PCT/GB2001/005689 WO2002053804A1 (en) 2001-01-03 2001-12-20 Subsea pipeline power transmission

Publications (2)

Publication Number Publication Date
CA2433736A1 true CA2433736A1 (en) 2002-07-11
CA2433736C CA2433736C (en) 2010-04-06

Family

ID=9906187

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2433736A Expired - Lifetime CA2433736C (en) 2001-01-03 2001-12-20 Subsea pipeline power transmission

Country Status (12)

Country Link
EP (1) EP1368510B1 (en)
JP (1) JP2004517592A (en)
KR (1) KR20030069201A (en)
AP (1) AP2003002777A0 (en)
BR (1) BR0116708A (en)
CA (1) CA2433736C (en)
EA (1) EA200300611A1 (en)
GB (1) GB0100104D0 (en)
MX (1) MXPA03005788A (en)
NO (1) NO336079B1 (en)
OA (1) OA12489A (en)
WO (1) WO2002053804A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2486687A (en) * 2010-12-20 2012-06-27 Expro North Sea Ltd Impressed current cathodic protection systems and monitoring
EP3340431A1 (en) * 2016-12-20 2018-06-27 Koninklijke Philips N.V. System for impressed current cathodic protection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456191B (en) * 1986-02-19 1988-09-12 Kurt Gosta Lange PROCEDURE AND DEVICE FOR AUTOMATIC MONITORING OF ELECTROCHEMICAL CORROSION PROTECTION IN A WATER EXISTING STALL CONSTRUCTION
US5176807A (en) * 1989-02-28 1993-01-05 The United States Of America As Represented By The Secretary Of The Army Expandable coil cathodic protection anode
BR9004940A (en) * 1990-10-02 1992-04-07 Petroleo Brasileiro Sa COUPLING DEVICE FOR PIPE HEATING SYSTEM
US5627414A (en) * 1995-02-14 1997-05-06 Fordyce M. Brown Automatic marine cathodic protection system using galvanic anodes
GB9916410D0 (en) * 1999-07-13 1999-09-15 Flight Refueling Ltd Anode monitoring systems and methods

Also Published As

Publication number Publication date
JP2004517592A (en) 2004-06-10
GB0100104D0 (en) 2001-02-14
EP1368510B1 (en) 2012-07-25
NO20033025L (en) 2003-09-03
EA200300611A1 (en) 2003-12-25
OA12489A (en) 2006-05-24
NO20033025D0 (en) 2003-07-01
NO336079B1 (en) 2015-05-04
KR20030069201A (en) 2003-08-25
MXPA03005788A (en) 2003-09-10
AP2003002777A0 (en) 2003-06-30
EP1368510A1 (en) 2003-12-10
CA2433736C (en) 2010-04-06
WO2002053804A1 (en) 2002-07-11
BR0116708A (en) 2003-12-23

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Effective date: 20211220