Subsea 7 Completes Girassol Repair

Tuesday, January 19, 2010

Subsea 7 reports it has completed the Girassol Pipeline Repair Project for Total E&P Angola. The project was an entirely diverless pipeline repair in 1350m water depth and was based on a technical design competition issued by Total which resulted in Subsea 7 being awarded the contract for the design, manufacture, testing and operation of a new deepwater pipeline repair system (PRS).  The system would then be used on the repair of a damaged 12-in. water injection pipeline in the Girassol field, offshore north-west Angola.  The PRS system comprises a set of permanent equipment such as the spool deployment frame, rigid spool piece, end connection skids and two mechanical pipeline connectors together with a suite of ROV deployed or operated tools for preparing and aligning the pipeline prior to the connector installation.

The Project management and engineering was performed at Subsea 7’s office in Aberdeen, UK, and the in-country works supported from Subsea 7’s facilities in Luanda, Angola.  The offshore phase comprised two separate phases.  In the first phase the permanent works equipment was installed on the seabed at the damage location.  In the second phase the ends of the damaged pipeline were lifted, prepared and aligned before the mechanical connectors were installed, set and tested with annulus tests onto the previously installed spool piece.  Final confirmation of the repair was achieved by a pipeline leak test from the Girassol FPSO which was completed in December 2009.

Graham Sharland, Subsea 7’s COO – Africa Region said, “We are delighted to have successfully completed this major pipeline repair project for Total. The Girassol repair represents another milestone in deepwater intervention. The solution, developed in-house by Subsea 7, has the potential to be used in a range of Life-of-field applications as the equipment and technology is fully transferable. We look forward to many successful similar projects.”

The Girassol Field is located approximately 210 km north-west of Luanda, Angola in water depth of approximately 1350m.

Maritime Today

The Maritime Industry's original and most viewed E-News Service

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


The Digital Oilfield Microwave Communication Offshore Brazil

With most offshore wells in Brazil located between 30 and 300 km from the coast, communication with offshore assets has not always been straightforward or reliable.

Fugro to Survey off Equatorial Guinea

Fugro has been awarded a contract by Ophir Equatorial Guinea (Block R) Limited for the provision of survey services for the development of large scale assets and

Wärtsilä Sternguard In-Water Serviceable Seal Launched

Wärtsilä, the marine and offshore industry's leading solutions and services provider, introduces an innovative new seal that can be fully serviced underwater, without setting up a habitat.

Maritime Careers / Shipboard Positions Maritime Security Pipelines Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair Ship Simulators Winch
rss | archive | history | articles | privacy | 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: 0.0692 sec (14 req/sec)