HR Wallingford conducts Tangguh LNG second jetty study

HR Wallingford conducts Tagguh LNG second jetty studyImage courtesy of HR Wallingford

McConnell Dowell Indonesia, a company conducting the detailed design and construction of the second jetty at the BP-led Tangguh LNG project in Indonesia, commissioned HR Wallingford for ship navigation simulation studies.

Work on expanding the Tangguh LNG plant will see the facility’s production capacity increase by 3.8 million tons per year, leading to the expansion of the marine export facility and the second jetty.

As part of the design process for the jetty, HR Wallingford undertook a combined fast time and real-time ship navigation simulation study.

These two elements were used to examine all of the navigation aspects of the Tangguh LNG expansion project, including navigation to and from the second jetty, towage requirements, limiting environmental operational conditions, anchorage areas and safety exclusion zones.

The first element of the work, the fast time simulation, focused on the channel and approaches to the new jetty, and examined a number of classes of LNG carriers and condensate tankers.

The second element, the real-time navigation simulation, focused on the final approaches and the turning maneuvers.

A local Tangguh Pilot and HR Wallingford’s Staff Pilot, maneuvered the ships in the final approaches to the virtual second jetty, using up to 4 x 55-tonne bollard pull tugs, HR Wallingford said in a statement.

The marine construction EPC contract was awarded to CSTS, a consortium consisting of Chiyoda, Saipem, Tripatra and Suluh Ardhi Engineering. Construction of the third train is now underway, which will bring the total plant capacity to 11.4 mtpa with the first production from the third train expected during 2020.

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