PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

PaintSquare


Coatings Industry News

Main News Page


NTSB: Construction Vehicle Caused Keystone Spill

Monday, July 9, 2018

More items for Quality Control
More items from North America

Comment | More

A rupture last fall in TransCanada’s Keystone Pipeline near Amherst, South Dakota, was the result of damage inflicted by a construction vehicle during installation, according to a report released Thursday (July 5) by the National Transportation Safety Board.

Keystone rupture
PHMSA

The NTSB’s accident report relates that the fatigue crack that eventually grew and ruptured began as damage from a “metal-tracked vehicle.”

A metallurgical analysis ruled out the theory that concrete weights installed over the pipeline to prevent buoyancy due to groundwater were to blame, a possibility broached in the Pipeline and Hazardous Materials Safety Administration’s initial Corrective Action Order.

Metal-Tracked Vehicle

The NTSB’s accident report relates that the fatigue crack that eventually grew and ruptured began as damage from a “metal-tracked vehicle.” Materials scientists analyzed grooves in the pipe’s exterior in the area of the rupture, finding traces of metal inconsistent with the pipeline itself, but likely a match for metal-tracked construction equipment. Coating material was “present and intermixed with the sliding groove marks,” according to the report.

The shape and size of the grooves, along with the metallurgical analysis, led to the conclusion that it was construction equipment, and not the concrete weights, that ultimately led to the leak.

Keystone spill area
TransCanada

The report says the Nov. 16, 2017, rupture resulted in the release of about 5,000 barrels of oil, but in April, TransCanada officials told the Aberdeen News it was actually 9,700 barrels.

According to the accident report, TransCanada was conducting in-line inspection with a pig and an acoustic leak detection tool at the time of the rupture; it was the first ILI for the detection of cracks since the pipeline was installed in 2008.

The area of the pipeline where the failure occurred is a 30-inch API 5L X70 steel pipe coated with fusion-bonded epoxy.

The report says the Nov. 16, 2017, rupture resulted in the release of about 5,000 barrels of oil, but in April, TransCanada officials told the Aberdeen News it was actually 9,700 barrels, which would make it one of the 10 largest crude-oil spills onshore in the U.S. since 2010.

Keystone XL Project

The spill came just as TransCanada gained approval from Nebraska for its Keystone XL project, the long-delayed Keystone extension that would connect the Alberta oil sands with Steele City, Nebraska. TransCanada has since confirmed commercial interest in Keystone XL but has yet to officially announce whether it will move forward with the project, first proposed in 2008.

Keystone XL was rejected by the administration of former President Barack Obama in 2015 but was revived soon after President Donald J. Trump took office in 2017.

TransCanada has signaled that the construction of Keystone XL is commercially viable and the company has plans to begin clearing brush for the project this fall, but it has yet to make a formal decision as to whether it will build the pipeline.

   

Tagged categories: Fusion bonded epoxy; Oil and Gas; Pipelines

Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Fischer Technology Inc.
 
FISCHER Expands Corrosion Product Line
 
Rounding out Fischer’s extensive line of products for measuring protective coatings in the corrosion industry is the new ultrasonic wall thickness gauge UMP series.
 

 
KTA-Tator, Inc. - Corporate Office
 
New KTA Pipeline Inspection Kit
 
• Defelsko standard memory body
• Positector FTS 0-250 mils, cabled dry film thickness probe
• NEW Positector Shore D hardness probe
• All essential inspection equipment!
Visit www.ktagage.com
 

 
DeFelsko Corporation
 
PosiTector SST Soluble Salt Tester
 
Measures the concentration of soluble salts on metal surfaces. Use with all Bresle patch types including the reusable, adhesive-free PosiPatch.
 

 
HoldTight Solutions Inc.
 
Clean surfaces simply don’t rust, and no other product cleans like HoldTight®102.
 
HoldTight®102 is a wet blasting additive that decreases the water’s surface tension, allowing it to get into the profile of the surface and remove ALL contamination, including salts, acids, abrasives, light oils, and greases. HoldTight®102 leaves behind no film and evaporates with the water, providing a surface that is thoroughly clean and ready for coating, rust-free for up to 72 hours.
 

 
Jotun Paints Inc.
 
Jotun Jotachar 1709
 
Mesh-free passive fire protection epoxy designed to protect against hydrocarbon pool fire scenarios for up to four hours as defined in the ANSI/UL1709 standard.
 

 
ABKaelin, LLC
 
ABKAELIN EH&S SERVICES
 
Programs/Training/Monitoring for Silica, Lead, Noise, Beryllium, Hexavalent Chromium, Cadmium, Hazardous Waste*PM10 & TSP-Lead Ambient Air Monitoring*SSPC C3/C5
 

 
Blastox/The TDJ Group, Inc.
 
Blastox® - One Step Lead Abatement
 
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!
1(800)-252-7869
 

 
SEMicro Division, M.E. Taylor Engineering, Inc.
 
Stop Guessing the Classification Rating of Your Cross Hatch Adhesion Testing Results
 
SEMicro's newly-patented Adhesion Testing Analyzer takes the guesswork out of cross hatch tape adhesion testing standards such as ASTM D3359 and ISO 2409.
 

 
Sauereisen, Inc.
 
Corrosion Resistant Materials for the Wastewater Industry
 
33+ years of successful installations

sauereisen.com
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy Policy   |   Terms & Conditions   |   Support   |   Site Map   |   Search   |   Contact Us