GMC LTD has just completed the Basic Design of a self-installing Buoyant Tower for the Prinos Field Development for Energean Oil and Gas (Athens, Greece).
The design brief was twofold to find a way to extend the life and utility of the existing Prinos infrastructure, and to find a cost effective and flexible solution for the green field expansion of the existing Prinos facility, GMC said.
The existing wellhead platform (Prinos Alpha) was reanalyzed, and strengthened to accommodate drilling using the Energean newly acquired and commissioned Energean Force (formerly Glen Esk) tender assist drilling rig. The focus was on finding an efficient solution to extending the utility of the existing infrastructure.
“GMC delivered a design for the retrofit of the existing platform that was both efficient and leveraged the local supply chain and workforce to deliver the platform modifications,” the company said in the press release.
For the greenfield solution, GMC developed a full field plan to connect the greenfield facilities to the existing offshore processing facility (Prinos Delta), including j-tube and riser retrofits.
Accordingt to GMC, the greatest contribution to the efficiency of the whole development project was a reconfigured and redesigned GMC Buoyant Tower which has been engineered to accommodate the unique challenges of the field location. Away from any oil and gas centers, the challenge was to develop an offshore facility design that could be fabricated locally and self-installed. The key benefit of the design was that it could be installed without the use of heavy lift vessels, and using only locally available marine assets, GMC explained.
Mathios Rigas, CEO, Energean explained: “GMC has proven to be a true partner in helping us develop solutions that meet Energeans’ unique challenges. GMC’s unique approach to addressing technical and commercial constraints has helped in driving this project forward.”
Dr Steve Moore, Technical Director, Energean, added: “GMC has been an integral part in developing and shaping our contracting and execution strategy on this project. They (GMC) have delivered a Basic Design which gives us confidence that the execution phase of the project will proceed according to schedule and plan.”
While Vibor Paravic, General Manager GMC explained: ”GMC has succeeded in leveraging our 20+ years of experience in working on technically challenging projects to deliver a bespoke solution for both the brownfield and the greenfield challenges faced by Energean. We look forward to the next phases of the project. ”