July 2021 saw the successful installation of a 5km Pipeline Bundle for the CNOOC International Buzzard Phase II (BPII) project. Subsea 7 was awarded the contract in 2018 for the project management, engineering, procurement, construction and installation of the Bundle, along with associated well and platform tie-ins.
Bundle technology is an ideal fit for this project. It provides all subsea production, water injection and gas lift flowlines, as well as control functions and end manifolds in a single integrated system, which is fully fabricated and tested onshore. The BPII Bundle system also incorporates a large drill centre manifold (36m long and 300 tonnes), allowing for up to 12 wells to be tied-in.
This is the latest in a series of major achievements for the project which is being delivered using an innovative Alliance model. It has already seen the installation of the new topside module, with Subsea 7 working closely with Allseas and fellow Alliance members CNOOC International and Worley. This is an example of how Alliance contracting models can be used to maximise collaboration on projects to deliver superior outcomes.