Pipeline Damage Assessment Tool Launched

MarineLink.com
Tuesday, October 15, 2013
EMPREINTE

Tecnitas, the marine advisory arm of leading international classification and verification group Bureau Veritas (BV), has launched a new technology simulation system for pipeline damage assessment, in collaboration with Total. This system, EMPREINTE, helps pipeline operators to determine safe operating pressures after a pipeline is damaged. It is a software suite which provides a decision making tool which, according to BV, aims to save operators money and cut downtime for pipeline repairs.

Offshore energy pipelines can sustain all sorts of damage like dents and gouges due to external injuries, internal or external corrosion due to a corrosive effluent and failure of coating or cathodic protection, weld defects and straining due to ground movements. Operators need to know if the pipeline is safe to continue operating or if some pressure reduction or shutdown is required. EMPREINTE does that very quickly.

Level 3 assessments of pipeline damage are based on advanced calculations such as finite elements. The advantage of finite element calculations is that they give a more accurate assessment of the state of the pipe and the safe operating pressure but they need usually detailed material data and are very time consuming. EMPREINTE is a pre and post processor to Abaqus finite element calculations which will perform reasonably conservative level 3 assessments in a very short time period, typically within 48 hours from defect discovery to assessment. That will typically permit pipeline use to continue when it might otherwise have needed to be shut for repairs. EMPREINTE can also be used in the design phase of the pipeline.

The principle of EMPREINTE, based on finite element calculations, is to use the defect pipe profile to design back a virtual tool from which the damaging process is modeled. The burst strength of the damaged pipe is determined after an iterative process to match the measured and calculated profiles. This actual burst strength is used to derive a safe operating pressure.

The tool has been validated with full scale tests in various conditions. It includes criteria to capture failure by plastic collapse and by ductile fracture after significant damage development. It has been recently extended to the assessment of dents submitted to cyclic loading conditions using the Dang Van criterion.

veristar.com
 

Maritime Reporter February 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

Davie Building LNG-powered Ferries

Canadian shipbuilder Davie held a keel laying ceremony for MV Armand-Imbeau II, marking the beginning of the hull assembly for this first of two sisterships under

Keppel FELS to Deliver 100th Jackup Rig

Keppel FELS, a wholly owned subsidiary of Keppel Offshore & Marine (Keppel O&M) is on track to deliver PV Drilling VI, a KFELS B Class jackup rig, to PV Drilling Overseas (PVDO),

New Products

More Floating Accommodation for Lerwick

An accommodation ship, the SNAV Toscana is due at Lerwick on or around 6 March 2015 to supplement the floating accommodation at the port. Formerly operated as an Italian ferry,

NMM lines up Box Buy

Navios Maritime Partners L.P. (NMM) an international owner and operator of container and drybulk vessels, announced today that it has secured, for no consideration,

Philly Tankers Lines Up Charters

Philly Tankers AS announced today that its wholly owned U.S. subsidiary, Philly Tankers LLC, has entered into binding long-term time charter contracts with a domestic end-user for the two 50,

Energy

GasLog Post 4Q 2014 Results

GasLog Ltd. and its subsidiaries an international owner, operator and manager of liquefied natural gas carriers, today reported its unaudited financial results for the quarter ended December 31,

Petrobras Downgrade Shakes Market

Moody's shocked bond investors this week with a surprise two-notch downgrade that put Brazilian oil company Petrobras in junk territory. The move was seen by some investors as overly assertive,

Brightoil Reports Steady Growth in Interim Results

Brightoil Petroleum (Holdings) Limited announced its interim results for the six months ended December 31, 2014, reporting steady growth over the period.   During the period,

News

Spanish Boat Wins Leg of Ocean Race

Spanish boat Mapfre has claimed victory in the Auckland leg of the of the round-the-world Volvo Ocean Race from Sanya, China, to Auckland.   The Alicante-based

China's Maritime Advances Worry US

The Director of U.S. National Intelligence, James Clapper, has expressed his concern at the progress of China in maritime zones it shares with its neighbors, accused

British Queen to Name New Ship

Queen Elizabeth II will christen P&O Cruises’ new flagship Britannia in Southampton, England, on March 10. She will be accompanied by her husband, Prince Philip, the Duke of Edinburgh.

Offshore Energy

Hercules Offshore Shares Fall 33%

Drilling contractor Hercules Offshore Inc's shares fell as much as 33 percent to a record low on Friday, a day after Deutsche Bank cut its price target on the company's stock to $0.

Brightoil Reports Steady Growth in Interim Results

Brightoil Petroleum (Holdings) Limited announced its interim results for the six months ended December 31, 2014, reporting steady growth over the period.   During the period,

Mexico Approves 5 Shallow Water Areas in Round One Oil Tender

Mexico has approved the terms for five shallow water areas containing around 355 million barrels of oil equivalent as part of its Round One tender to open up the country's oil fields,

 
 
Maritime Careers / Shipboard Positions Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Salvage Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1887 sec (5 req/sec)