Repair of Subsea Pipeline
Advertise Here
Trending Topics:
Monday, January 26, 2015

Ship Equipment
Ship Maintenance
Ship Systems
Worldwide Metric
Freeman Marine
Neptune Group

Home Page
About MarineTalk
Buyer's Guide
World InfoDesk
Discussion Forums
Advisory Board
Advertising Information
Submit Company Listing
Edit Company Listing
Site Map
MarineTalk Site Search:
Featured Companies

The Tait Marine Art Gallery
The marine artwork of Shetland oil painter Jim Tait, whose seascapes are characterised by their dramatic and realistic seas and skies.

Association of Ship Brokers & Agents (USA) Inc
We are a membership trade association bringing together companies and individuals doing business in the U.S. and Canada as ship brokers and agents. Our purpose is to foster the ideals and standards of professional conduct and practices.
    USA New Jersey

World Maritime University
The World Maritime University (WMU), in Malmö, Sweden, is a postgraduate maritime university under the United Nations, founded by the International Maritime Organization (IMO) in 1983 to provide postgraduate education, research, and capacity building

Flynn Refrigeration Ltd
Flynn Refrigeration provide a complete supply package for all aspects of refrigeration and air conditioning used within marine and industrial applications. We provide a highly customer focused response to your enquiries.
    United Kingdom

Repair of Subsea Pipeline


Oceaneering International, Inc. (USA) announced the successful repair of a subsea pipeline system using on-bottom, diverless procedures in a water depth of approximately 1,000 feet. This is believed to be the deepest flowline repair on the sea floor ever attempted and demonstrates a capability not previously available to the offshore industry.
The repair was made to dual 4-in. flowlines which connect Mariner Energy's Dulcimer subsea completion in Garden Banks 367 to a Chevron platform in GB 236 over a distance of 14 miles. The damage to the lines was discovered during commissioning procedures prior to production startup. Investigation by a remotely operated vehicle (ROV) revealed a hole in each line about 3 miles from the subsea well. The holes appear to have been made when something was dragged across the Dulcimer lines.
Oceaneering performed the repairs using its new multi-service vessel Ocean Intervention, which had installed the Dulcimer umbilical, flying leads and flowline jumpers. Despite weather conditions peaking at 30-kt winds and 8-ft seas, the DP Class 2 vessel was able to work continuously at the site for the ten days required to effect and test the repairs. The damaged sections were cut out of the flowlines and replaced by spoolpieces. Oceaneering Smart Flange Plus connectors were used to attach the spoolpieces to the cut ends of the flowlines. Underwater work was performed by an Oceaneering WASP atmospheric diving system assisted by an ROV.
More information: Oceaneering International, Inc.


Latest Marine News and Technology Articles | Maritime 2015 Buyer's Guide


E-mail:  Contact Us

Copyright © 1998 - 2015 MarineTalk
Division of Link Internet Business Solutions
All rights reserved.

The reproduction, retrieval, copying or transmission of this Web site content,
in whole or in part, is not permitted without the express permission of
MarineTalk .