Installation of CFD11-6 jacket in Caofeidian
On February 26, 2019, the "Huaxi 5000" ultra precision completed the installation project of the Caofeidian 11-6 CEPI jacket with a weight of 3000 tons. This was the first major jacket installation project in the Bohai Sea area in 2019, with a deviation of 0.5m and an angle of 0.1 °. It sounded the horn for Huaxi Offshore Engineering at the beginning of the new year and also received praise and recognition from on-site owners and the project team of CNOOC Installation Division. The Caofeidian 11-6 CEPI central platform is a newly built central platform in the Caofeidian 11-6 area. It is connected to the existing old platform WHPD through a trestle bridge. The CEPI jacket is a floating towing jacket with 8 legs and 40 wells, which increases the difficulty of construction. There are numerous submarine pipelines near the old platform and they are close to the location where the jacket is lowered, making it difficult to anchor. The project team of CNOOC Installation Business Unit and the "Huaxi 5000" fleet organized a technical and safety briefing to analyze and overcome the key points, difficulties, and precautions that occurred during the construction process. The lifting process was strictly carried out in accordance with the requirements, and the construction task was ultimately successfully completed.