据 DeepOcean 公司称，此次作业是首次使用其内部开发的专有技术，该技术可以在无需潜水员干预的情况下完成所有工作。

工作范围包括冲洗海底管道和歧管，断开海底采油树的输油管线和脐带缆，拆除立管和中水拱，以及回收 FPSO 的系泊系统。

断开连接完成后，DeepOcean 还负责监督 FPSO 的拖曳工作。

DeepOcean 将线轴断开和盲法兰安装描述为“无人潜水员作业中的开拓性成就”。

该项目的交付由英国阿伯丁的 DeepOcean 团队负责管理，并得到了挪威豪格松办事处的支持。

剩余的工作，包括回收系泊链、拆除立管和中层拱架，预计将于今年年底前完成。

DeepOcean英国公司总经理Robin Mawhinney表示：“这个项目是DeepOcean的一项杰出成就。我们拥有世界领先的业绩记录，能够利用我们内部的设计、技术和工具方面的专业知识，找到独特的方法来执行复杂的海底作业。”

“为此项工作量身定制的工具使我们能够运用单一方法完成所有工作，并取得了卓越的成果。参与设计、建造和海上作业的每个人都应该为他们所取得的成就感到无比自豪。”

据称，Gryphon Alpha 是北海“第一艘专门建造并永久系泊的 FPSO”，最初由运营商 Kerr McGee 委托建造。

该 FPSO 的所有权后来转移给了马士基石油公司，随后在 2018 年合并后又转移给了道达尔能源公司。

上周，DeepOcean 宣布获得一份合同，将为英国大陆架上的一个油田开发项目提供海底建设和连接服务，该项目将以海底回接的方式连接到现有的主机设施。

在线阅读文章：https://www.oilfieldtechnology.com/drilling-and-production/27112025/deepocean-nears-completion-of-gryphon-alpha-fpso-disconnection/

According to DeepOcean, the operation is the first to use a proprietary technology developed internally that allows the entire scope of work to be completed without diver intervention.

The scope of work included flushing of subsea pipelines and manifolds, disconnection of flowlines and umbilicals from subsea trees, removal of risers and midwater arches, and retrieving the FPSO’s mooring systems.

DeepOcean also oversaw the towing of the FPSO once disconnection was accomplished.

DeepOcean described the spool disconnection and blind flange installation as “pioneering achievements” in diverless execution.

The delivery of the project has been managed by DeepOcean’s team in Aberdeen, UK, with support from the Haugesund office in Norway.

The remaining work, which involves recovering mooring chains and removing risers and midwater arches, is expected to be completed before the end of this year.

DeepOcean UK managing director Robin Mawhinney said: “This project is a standout achievement for DeepOcean. We have a world-leading track record in finding unique ways to execute complex subsea operations using our in-house design, technology and tooling expertise.

“The bespoke tooling created for this scope of work allowed us to perform the entirety of the scope using diverless methodologies that produced exemplary outcomes. Everyone involved in the design, build and offshore operations should be extremely proud of what they have achieved.”

Gryphon Alpha is said to be the North Sea’s “first purpose-built and permanently moored FPSO”, and was initially commissioned by operator Kerr McGee.

Ownership of the FPSO later passed to Maersk Oil and subsequently to TotalEnergies following its 2018 merger.

Last week, DeepOcean announced receipt of a contract to deliver subsea construction and tie-in services for a field development on the UK Continental Shelf, with the project being developed as a subsea tieback to an existing host facility.

Read the article online at: https://www.oilfieldtechnology.com/drilling-and-production/27112025/deepocean-nears-completion-of-gryphon-alpha-fpso-disconnection/