Seaway Falcon Performs Deepest Pipelay

Friday, April 05, 2002
Stolt Offshore in Houston has successfully completed a deepwater subsea to subsea installation, including one flowline and one umbilical, for Shell's single well Einset project in the Gulf of Mexico, reports Bjorn Koi, Stolt's project manager. "Subsea to subsea installations are 'rare' in the industry but may become more prevalent as we move into deeper waters. To date, most subsea tie-backs have been supported by host platforms in shallower water. "In the case of Einset, we tied back a new deepwater well to existing subsea infrastructure, also located in deepwater. This achievement demonstrates how the industry is applying proven technology while effectively utilizing deepwater construction vessels, such as Stolt's Seaway Falcon," said Koi. He added that the "Seaway Falcon" multipurpose vessel achieved its deepest pipelay to date, with the Shell Einset well located in 3,463 ft. of water on Viosca Knoll Block 872. The Stolt crew completed the umbilical and flowline installation project in a single mobilization, using a J-lay installation method. The project scope included the setting of two long base line (LBL) arrays-a collection of acoustic beacons or transponders-to ensure the accurate installation of two Shell-supplied pipeline end manifolds (PLEMs) at each end of the six-inch flowline; i.e., one at the Einset well and one at the SE Tahoe 1 well. The two pipeline jumpers, installed by others, connected the PLEMs to the wells. Stolt's "Seaway Rover" ROV (remotely operated vehicle) support and survey vessel completed the LBL arrays, installing six transponders at Einset and eight transponders at SE Tahoe 1 in advance of the flowline installation work. "The accuracy rate in using the LBL array is very high. We hit our target boxes for installing the PLEMs with excellent precision due to the good work of the 'Seaway Falcon,'" said Koi. The PLEMs themselves represented a challenge as well, says Koi, explaining that Stolt designed and fabricated a purpose-built PLEM handling frame to accommodate their size and facilitate installation. Each PLEM was approximately 25 feet tall, with the PLEM installed at Einset weighing 24 metric tons and the PLEM at for the SE Tahoe location weighing 18 metric tons.
Maritime Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Legal

Ulrich Ganz of Bernhard Schulte Joins Tundra

Tundra Group is delighted to announce the addition of the former Senior Company Security Officer (CSO) of Bernhard Schulte Shipmanagement (BSM), Captain Ulrich Ganz,

NZ's Lyttelton Port Recommends Offer, to Pay Special Dividend

The board of New Zealand's  Lyttelton Port Co. Ltd recommended minority shareholders accept an offer of NZ$3.95 a share offer from the commercial arm of the Christchurch city council.

NYK Opens New Planning Center in Kumamoto

On September 1, 2014, NYK and Kozo Keikaku Engineering Inc. established a stowage planning center for container shipping at the Kumamoto office of Kozo Keikaku Engineering Inc.

Offshore

Drydocks World to Participate in SMM 2014

Drydocks World, the leading provider of maritime and offshore services to the shipping, oil, gas, and energy sectors, will participate in the prestigious 26th edition of Shipbuilding,

SBM Offshore Completes Real Estate Divestment

SBM Offshore is pleased to announce that is has completed the sale and lease back of its Monaco real estate portfolio.  The last of the three buildings was sold

Keppel T & T Appoints Lim Chin Leong to its Board

Keppel Telecommunications & Transportation Ltd (Keppel T&T) has strengthened its Board with the appointment of Mr Lim Chin Leong as an independent, non-executive

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Offshore Oil Pod Propulsion Salvage Ship Repair Ship Simulators
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1501 sec (7 req/sec)