Subsea 7 Delivers 1st Project Utilizing Tx. Spoolbase

Subsea 7 announced the completion of the Gulf of Mexico Marathon Droshky project – the first project to be delivered utilizing its new North American spoolbase at Port Isabel, Texas.

The project, managed from Subsea 7's Houston office, involved the fabrication and installation of two 8" flowlines totalling 58km (36 miles) for Marathon Oil Corporation's Droshky field development.

Pipeline production took place at the Port Isabel Spoolbase between June and October 2009 and offshore operations commenced afterward with the arrival of the Seven Oceans pipelay vessel, to start spooling the first of three offshore pipelay campaigns.

Ian Cobban, Vice President - North America for Subsea 7 commented, "Nearly one year on from Port Isabel opening, I'm pleased that we have proven the spoolbases capabilities with the successful delivery of the Droshky project. Our ability to fabricate and install high quality pipelines locally is an important competitive edge for Subsea 7 and these are very exciting times for the region as we build upon our presence here."

In addition to the fabrication and installation of the pipeline for the Droshky project, Subsea 7 also conducted the engineering, fabrication and installation of two 580m (1900ft) 8" risers, four termination pipeline end structures and two initiation pipeline end manifolds. The scope also included metrology, fabrication and installation of three rigid jumpers as well as pre-commissioning of the entire Droshky pipeline system. 

The Droshky field development, with a water depth of 900 metres (2950 ft), serves five subsea wells via two 29km (18 miles) insulated pipelines. The development is a life extension of the Bullwinkle platform, which has seen decreasing production in recent years. This is Marathon Oil Company's first Gulf of Mexico project in 14 years as well as its first ever deepwater Gulf of Mexico project.

The Port Isabel spoolbase was officially opened in July 2009 and enables Subsea 7 to offer a deepwater rigid pipelay service to clients in the North America region. Located in Port Isabel, approximately 11 kilometers (seven miles) from Brownsville, Texas, it is 1.5km (0.9 miles) in length (including 1.2km stalk rack and 0.3km fabrication building). The base employs up to 100 people when working at normal capacity.

The investment in the spoolbase, in excess of $30 million, has allowed the company to expand its presence and capabilities in the North America and Mexico regions, and forms part of a global $1billion+ asset and equipment investment program which has also seen the introduction of seven new vessels so far, with an eighth, the Seven Pacific pipelay and construction vessel, expected to be delivered later this year.


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