nace spo200-2008 discussionevents.nace.org/conferences/ecda2009/images_presentations/jdidas.pdf ·...

NACE SPO200-2008 Discussion

Steel Cased Pipelines

ECDA Seminar

Houston, TX

January 2009

Leaders in Corrosion Control Technology

NACE SPO200-2008

Document is in review.

Document will be getting technical

changes.

Document is coordinating with SPO502

with casing information and definitions.

Document was reaffirmed in 2008 with

editorial changes.


History – Development of RP0200-2000

1980’s NACE T-10A committee needed to address pipeline casings due to pipeline failures at cased crossings.

NACE 10A-192 was created to address the issues and provide guidance for pipeline operators.

NACE RP0200-2000 was developed based on 10A-192 and current industry practices.

Oil & Gas Pipeline Industry practice today is not to case unless absolutely necessary or if forced to by local regulations.


History – Development of RP0200-2000

Johnston, V. Road Casing Electrical Contact

Characterization. American Gas Association

Distribution Conference, 1983. Cleveland, OH:

American Gas Association (AGA),(2) 1983.

NACE Publication 10A192 (latest revision), “State-of-the-

Art Report on Steel Cased Pipeline Practices.”

Houston, TX: NACE.

Peabody, A.W. Control of Pipeline Corrosion. Houston,

TX: NACE, 1967.


RP0200-2008 Highlights

This standard recommended practice details acceptable practices for the design, fabrication, installation, and maintenance of steel-cased metallic pipelines. It is intended for use by personnel in the pipeline industry.



The current practice of installing cased carrier pipe has changed only slightly since the beginning of its use. External loading of the carrier pipe has now been eliminated by the installation of heavy-wall casing pipe, and isolating spacers are used to prevent electrical contact between the casing and the carrier pipe. End seals are used to keep mud and water out of the annular space between the carrier pipe and casing.



Used as a standard on how to properly install a pipeline casing.

Incorporates test methods as how to determine if a casing is shorted or clear.

Provides guidance on how to evaluate a casing and the carrier pipe condition.

SPO200-2008 Revisions

• Will be adding additional technical content

as to how to install a casing and carrier

pipe correctly.


and choices to the Casing Filling

Appendix.


and better examples to the Casing Testing

Appendix.

SPO200-2008 Revisions

• Will be adding a new Appendix detailing

methods available to clear a shorted

casing.


Pipeline Casing


New Pipeline Casing in Progress


New Pipeline Casing Typical Drawing


New Pipeline Casing in Progress


Casing Extension in Progress


Casing Extension Completed


Shorted Casing Clearing


Shorted Casing Cleared


GWUT Casing Testing


Non Cased Installation

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