磐城沖プラットフォーム撤去の概要 Summary of Iwaki-Oki Platform Decommissioning

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著者

    • 戸谷 裕造 TOYA Yuzo
    • 磐城沖石油開発(株)施設管理部 Marin Facilities Engineering Dept. Offshore Iwaki Petroleum Co., Ltd.
    • 藤崎 恭功 FUJISAKI Yasukoto
    • 新日鉄エンジニアリング(株)海洋事業部海外プロジェクト部 Project Planning & Operation Dept., Marin Engineering & Construction Division. Nippon Steel Engineering Co., Ltd.

抄録

Iwaki-Oki Gas field which operated by OIP (Offshore Iwaki Petroleum Co., Ltd.) located at Pacific Ocean of Naraha-Chou offing. OIP started natural gas production from 1984, and finished operation at end of July 2007. After finishing operation, OIP needed decommissioning work of Iwaki-Oki Platform, and started study for it from 2004. This study consisted with several engineering, several preparation works of Platform decommissioning, procurement of HLV (Heavy Lift Vessel) and discussion with related governments.<br>OIP carried out deconstruction work for Platform decommissioning from December 2009 to July 2010. This deconstruction work included topside removal and Jacket toppling. Topside removal is dividing topside on Jacket into 16 blocks, lifting them by HLV respectively, and moving to a working table ship by HLV. And, Jacket was cut in depth-sounding the part of 92.5 meters, and was performing toppling.<br>One of key works of this deconstruction was subsea-cutting, and this key work was Jacket legs and main piles cutting by ROV (Remotely Operated Vehicle). In Japan, it was first case to use ROV for subsea-cutting. Another one was unique work, and it was made use of Jacket leg buoyancy for Jacket toppling.<br>This Platform decommissioning was completed by the time necessary for completion about 10 working days shorter than a plan. This work was also no-disaster.

収録刊行物

  • 石油技術協会誌

    石油技術協会誌 77(2), 105-113, 2012-03-01

    The Japanese Association for Petroleum Technology

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各種コード

  • NII論文ID(NAID)
    10030146029
  • NII書誌ID(NCID)
    AN00130976
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    03709868
  • NDL 記事登録ID
    023780105
  • NDL 請求記号
    Z17-178
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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