June 2014, Vol. 241, No. 6


McDermott Installs Tension Leg Wellhead Platform Off Brazil

McDermott International, Inc. installed the P-61 Tension Leg Wellhead Platform (TLWP) off Brazil for the PPT BV joint venture, consisting of Petrobras and Chevron.

Once fully commissioned and operational, the project will enter the record books as the first use of dry-tree floating technology offshore Brazil and the first tension leg platform installation offshore South America.

“The patented extended tension leg platform technology from FloaTEC, construction capabilities of Keppel FELS, and offshore transportation and installation experience of McDermott combined to form a first-of-a-kind solution for this challenging deepwater environment,” said David Dickson, president and CEO at McDermott.

Topsides engineering was executed by McDermott in Houston and constructed in Singapore by Keppel FELS, and fabrication of the piles and tendons was provided by McDermott’s fabrication facilities. The hull was designed by FloaTEC in Houston and fabricated in Brazil by Keppel FELS at its BrasFELS yard. The topsides and hull were then integrated at BrasFELS using the float-over method.

McDermott was instrumental in providing float-over support and executing the offshore transportation and final installation of the TLWP. The project was carried out with significant technical contribution by Chevron to the TLWP design, construction and installation. Commissioning of the platform continues under the expertise of the FloaTEC project team.

Using the Derrick Barge 50 to install the tendons, McDermott completed its offshore campaign without a single lost-time Incident.


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