ECDA of Cased Pipeline Segments

Corrpro Companies, Inc.

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ECDA of Cased Pipeline Segments

2010-06-01
By Corrpro Companies, Inc.

[PDF-624.19 KB]

English

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Details:

Alternative Title:

Improvements to the External Corrosion Direct Assessment (ECDA) Process Cased Pipes
Corporate Creators:

Corrpro Companies, Inc.
Corporate Contributors:

United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration ; ExxonMobil Pipeline Company ; El Paso Pipeline Group ; Panhandle Energy

United States. Dept. of Transportation. Pipeline and Hazardous Materials Safety Administration ; ExxonMobil Pipeline Company ; El Paso Pipeline Group ; Panhandle Energy Less -
Subject/TRT Terms:

[+]

Corrosion Gas Pipelines Guidelines Inspection Maintenance And Preservation Methodology Petroleum Pipelines Pipe Pipelines Pipeline Safety Research Hub Risk Assessment
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Contracting Officer:

Lowry, Bill
Corporate Publisher:

Corrpro Companies, Inc.
Abstract:

Technologies that are currently used to assess cased pipes include in-line inspection, guided wave ultrasonic, electromagnetic wave, pulsed eddy current, conformable array, bore scope, pressure testing and visual inspection. Several other technologies are under development, some of which have the potential to be better for inspecting cased pipe than these three tools. While these technologies are recognized as the best minimally invasive technology presently available for identifying and quantifying corrosion and other metal-loss defects, they can not easily or economically be used on many pipelines. Conventional aboveground indirect inspection tools used in ECDA are not effective for cased pipes if there is no electrical path in the annulus between the casing and the pipeline. Even when an electrolyte is introduced into the annulus, the casing may still act as a shield such that the results from most indirect inspection tools regarding the cathodic protection (CP) level or coating condition may not be particularly meaningful. The primary goal of this project is to develop a new ECDA methodology that can be used to assess cased pipes which can not be assessed by standard methods. This new ECDA methodology will fill the assessment gap, enhance safety and protect the environment. The appendix includes "Draft Recommended Guidelines for External Corrosion Direct Assessment (ECDA) Of Cased Pipeline Segments".
Format:

PDF
Funding:

DTPH56-08-T-000012
Collection(s):

PHMSA Collection US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:4b06daf1df607878b51cc1e51d8d5c19c88d7dded46488b8d1e8f60fdba5161c
Download URL:

https://rosap.ntl.bts.gov/view/dot/34532/dot_34532_DS1.pdf
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ECDA of Cased Pipeline Segments

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