Gas Storage Bergermeer
Executive Summary
The Gas Storage Bergermeer project comprised modifications to an existing well site and the construction of a new gas treatment facility. TAQA built the facilities to store gas when demand is low and produce gas when demand is high. Fluor provided engineering, procurement and construction management services.
Client's Challenge
Because the reservoir is located in a populated and environmentally sensitive area between Alkmaar and Bergen, the gas treatment plant could not be built at the well site directly above the reservoir. Instead, it would be built in the Boekelermeer industrial area southeast of Alkmaar, approximately 8 kilometers away from the well site. Two 30-inch pipelines (installed by others) would bring the gas to and from the reservoir.
Fluor's Solution
The storage site was an existing gas reservoir. Conversion of the reservoir into a gas storage facility involves the modification of six existing wells into one site to accommodate 14 new wells, for a total of 20.
The injection facilities comprised six 10-MW centrifugal compressors, and the treatment facilities contained two dew point correction units (silica gel).
TAQA and Fluor conducted a value engineering exercise that reduced the project budget considerably. Subsequently, Fluor updated the front-end engineering and design (FEED) package before starting the next phase. The first task was to modify the systems at the existing well site to enable TAQA to continue injecting cushion gas into the underground reservoir during construction.
Fluor provided engineering, procurement and construction management services for the well site, the gas treatment plant and peak gas installation tie-ins.
Conclusion
Gas Storage Bergermeer is the largest open-access gas storage in Europe, with a working capacity of 4.1 billion cubic meters of natural gas atop the 4.3 billion cubic meters of cushion gas, remaining in the reservoir to achieve an economical operating pressure.
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