Since 2004 Ramboll Oil & Gas has had a partnering contract for modification jobs on Hess Denmark's South Arne platform in the North Sea. The South Arne field is located in the Danish sector and lies in water depths of approximately 60 m. Currently the field counts a total of 20 wells, consisting of 13 producers and 7 water injection wells.
Smooth execution of brownfield projects
Over the years Ramboll has carried out a significant number of improvement projects including an upgrade of the existing water-injection module, installation and construction of production flow lines, and studies and detailed design of extensions for accommodating additional production wells.
Ramboll manages the team of internal engineers and external sub-contractors, and performs the full scope of work from initial idea to final handover. Key factors on the improvement projects are safety, efficiency, smooth project execution and on-time completion.
South Arne - Phase III Development
When Hess Denmark decided to expand their activities on the South Arne field with two additional wellhead platforms as part of the Phase III Development, Ramboll was awarded the tie-in project. The project is a supplement contract to our existing partnering contract with Hess Denmark.
The tie-in project was sanctioned in the end of 2010, but in order to meet the overall deadline, pre-sanction activities such as engineering and procurement of long lead items were already initiated during early spring 2010.
The brownfield project consists of three primary parts:
- Phase III tie-in to two new wellhead platforms
- Upgrading of existing equipment (compressors and static equipment)
- Studies and reports (design report, SRS report, structural, flare relief, firewater etc.)
Uniting competences for large-scale EPCM contracts
For the tie-in project Ramboll teamed up with project engineering company, Semco Maritime, to form a unique and strong alliance cooperation together with Hess Denmark. “When we unite the competences, we have a stronger basis for achieving successful results. Of course, we are very happy to be part of this alliance,” says Engineering Manager Søren Eg Hansen, Ramboll Oil & Gas.
The multidisciplinary alliance group covers disciplines such as piping, structural, safety, planning, installation, procurement, electrical /instrumentation and telecom.
The installation of the wellhead platforms is scheduled for 2012 and the project is expected to be completed in Q1 2013.
Cutting carbon footprints
Hydrocarbon emissions from platforms and refineries are a source of atmospheric pollution, and there is a strong drive in the industry to find environment-friendly solutions. Read more here about how Ramboll used flare gas recover processes on the South Arne platform