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Recent News and Articles on the Keywords: corroded pipelines + corroded pipeline + newer  Related to the article below (Last Update: 7/9/2008)

New section of BP pipeline springs leak
Anchorage Daily News (subscription), AK - Jun 24, 2008
The elevated pipe, installed the winter before last to replace a corroded oil line near the heart of the vast field, sprang a leak June 16, releasing an ...
BP, state officials examining pipe leak United Press International
all 3 news articles »
The US Offshore Drilling Argument: The Debate Between Now vs Later
The Oil Drum - Jun 30, 2008
If companies need to start laying large amounts of pipeline because the old pipeline has corroded, costs will be even higher. If companies can arrange their ...

Factory Maintenance
Triggers for gas pipeline explosions
Factory Maintenance, Australia - Jun 18, 2008
INCREASING media speculation over the cause of the gas pipeline explosions at Apache Energy?s Varanus Island facility has prompted a former engineering ...

Energy Bangla
Issues of Energy Sector of Bangladesh
Energy Bangla, Bangladesh - Jun 28, 2008
The Bakhrabad ? Chittagong pipeline capacity is saturated. It can not deliver more than 250 MMCFD at any case. The corroded and eroded internal condition of ...
Concern about pipeline safety spurs ordinance
Tri County Journal, OH - Jun 18, 2008
"There could be damage to the pipeline to where it immediately blows up," She said. If the pipeline's coat is damaged, the pipe could corrode, Miller said. ...
Meeting on Fort Worth gas drilling rules attracts hundreds
Fort Worth Star Telegram, TX - Jun 10, 2008
So-called wet gas can corrode pipelines and cause leaks, Fisher said. Utility companies began adding odorant to their product after an explosion at a New ...

The Market Oracle
Algae a Greener Biofuel Than Ethanol?
The Market Oracle, UK - Jul 3, 2008
Ethanol creates new transportation and safety hassles as well. It can't be moved via pipeline, so it has to be shipped via ship, truck, or railcar. ...
Gangs, cartels take advantage of undertrained, poorly paid police
Houston Chronicle, United States - Jun 14, 2008
That's a fragile foundation in places like Juarez, where decades of drug smuggling and corruption have corroded police integrity and efficiency. ...
Siemens Water Technologies To Supply Water Treatment Equipment
Water Online (press release), PA - Jun 15, 2008
Over time, the high level of chlorine has corroded the pipeline, and sections of it must be replaced. The new plant near Oquawka will allow the water to be ...
OTC Speakers Highlight Offshore Industry's Future
RedOrbit, TX - Jun 12, 2008
In a worst- case scenario, Simmons said, oil and gas output could fall by 10- 20% by 2013 if industry does not replace its rusting, corroded assets. ...
Source: Google News

[PDF] The Pipeline Defect Assessment Manual
A Cosham, P Hopkins - 4th International Pipeline Conference, Calgary, Canada, 2002 - penspenintegrity.com
... line pipe steels will be applicable to newer steels of higher strength (grade X100
or above) and toughness, larger diameter, thicker wall (deep water pipelines ...

Full scale experimental analysis of stress states in sleeve repairs of gas pipelines -
MD Chapetti, JL Otegui, C Manfredi, CF Martins - International Journal of Pressure Vessels and Piping, 2001 - Elsevier
... service losses and restore serviceability of corroded lines is ... the circumferential
welds on the pipeline material. ... have more ovalisation defects than newer ones ...

[BOOK] Piping and Pipeline Assessment Guide
AK Escoe - 2006 - books.google.com
... 206 "Assessing the strength of corroded elbows" American Gas Association ... 3. Tools
used to perform piping and pipeline fitness-for-service (Newer version of ...

[CITATION] PIPE TOC
DUDBP PREDICTORS, DI TECHNIQUES
-

[PDF] Corrosion Detection Devices -
B Howard - Conference: Army Corrosion Summit 2004, Cocoa Beach, FL (US) …, 2003 - osti.gov
... One of the newer image recording devices, referred to as computed radiography, employs
the use of photostimulable plates. ... Figure 6: DR of Corroded Pipeline ...

[CITATION] An Introduction to In-plant Piping and Pipeline Fitness-for-Service
C One
-

[CITATION] WF GUNDAKER Ebasco Services Incorporated
PT FUNDAMENTALS - Engineering Experiment Station bulletin/West Virginia …

[CITATION] HL GORDON Ebasco Services Incorporated
UCS COURSE, PT FUNDAMENTALS - Engineering Experiment Station bulletin/West Virginia …

Best practice for the assessment of defects in pipelines?gouges and dents
KA Macdonald, A Cosham - Engineering Failure Analysis, 2005 - Elsevier
... will be applicable to newer steels of higher strength (grade X100 or above) and
toughness, larger diameter, thicker wall (deep water pipelines are approaching ...

Chemical-Biological Stabilization Process for Repairing Soils and Cuttings Contaminated with Oils … -
RH Adams - US Patent 20,070,244,022, 2007 - freepatentsonline.com
... older, some around 50 years old, it is common to have hydrocarbon spills coming
from corroded pipelines. ... In this zone, the pipelines are newer, and many ...
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Source: Google Scholar

Newer, Simpler Fixes Restore Corroded Pipelines

Rio de Janeiro, Brazil – December 14, 2007 – Researchers are taking the guesswork out of repairing corroded oil and gas pipelines with two recent studies that appeared in the journal Experimental Techniques.

Historically, engineers repairing corroded pipeline segments have not had much guidance in regard to measuring the effectiveness of their choice of repair materials. This is especially true in the case of repair materials for internal defects, which have been difficult to assess. Researcher J.L.F. Freire of the Catholic University of Rio de Janeiro and his colleagues are easing in quantifying the effectiveness of the repair systems with a new approach that models and measures pipes’ strength. They applied the fiberglass-composite repairs to pipeline tubes with machined defects made to resemble natural corrosion. Using strain gages, they measured the strength of the repairs while pumping pressurized water through the pipes. Their study revealed wide variation in the repair materials’ quality. While one system proved stronger than an unblemished pipe, another was only 25 percent as strong.

“We can use these models and tests to establish standards for repair systems,” Freire said, “and to compare different ones.”

In the second study, researchers found that thin, precurved, steel lamina effectively repair external corrosion without compromising pipes’ elasticity or strength. Lead researcher M.A. Perez Rosas and colleagues at the Department of Mechanical Engineering, PUC-Rio, tested the new steel sheaths on scaled-down piping segments that were pressurized to simulate the flow of oil. Four layers of low-carbon steel or two layers of stronger steel both made the treated pipe segment stronger than the original.

“I would expect the lamina to work well in the field,” Rosas said. “They’re thin, easy to manage, and they eliminate the need for welding.”

_________________________________________________________________

The studies are published in the journal Experimental Techniques. Media wishing to receive a PDF of this article may contact professionalnews@bos.blackwellpublishing.net.

To view the abstract for this article, please click here.

J.L.F. Freire is affiliated with the Catholic University of Rio de Janeiro and can be reached for questions at jlfreire@med.puc-rio.br.

Experimental Techniques, a bimonthly interdisciplinary publication focusing on the practicing engineer and engineering mechanics educators. The journal promotes technical and practical advancements in experimental mechanics.

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