Model Tests for LNG Export Terminal Breakwater

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The Peru LNG Terminal is located on the central coast of Peru, 150 km south of Lima.

The liquefied natural gas jetty was designed to accommodate LNG vessels of up to 160,000 m3 capacity.

Our scope of work consisted of the metocean studies, design of the terminal breakwater and dredged channel, as well as basic engineering of dock structures and trestle. We also acted as Owner’s Engineer during the detailed design and construction phases.

After examining conventional rubble mound, CORE-LOCTM, and berm breakwater solutions, the berm alternative was selected and initial design of the cross sections was developed using desktop design methods. A 3D hydraulic model testing program was conducted at CHC in Ottawa, Canada in 2003 to assess the performance of the sections and optimise and confirm the design.

The final result was a cross section design that reshaped to a stable configuration in the design wave condition.

The EPC contractor suggested a different design for the breakwater using Antifer blocks as armour unit; consequently, We conducted another 3D hydraulic model testing program in 2006 at CHC to appraise the new breakwater design.

The tests were mostly successful, however certain segments such as roundhead did not meet the acceptance criteria. The EPC contractor revised the design accordingly and the breakwater was re-tested at the Hydraulic Research Centre of Wallingford (HRW) in the UK in late 2007.

Construction of the breakwater was started in 2007 and completed in 2010.

Project details

Offerings
Coastal engineering, Simulation
Commodity
LNG
Location
Pampa Melchorita, Peru
Business line
Process Infrastructure
Client
Peru LNG a Hunt Oil Company, SK Energy, Repsol YPF, and Marubeni Partnership
Timeframe
2007 - 2010
Solution phase
Evaluate, Innovate, Create
Service
Engineering