Construction — EMEA — Norway — Foundations
The Nyhamna Gas Processing Plant : Permanent DYWIDAG Strand Anchors contribute to better Energy Supply
The Nyhamna Peninsula , which is part of Gossa Island on Norway ’ s southwestern coast , accommodates one of the country ’ s largest gas processing plants . Here , Shell processes natural gas that is extracted from the Ormen Lange Field located on the ocean bed approximately 120km northwest of Kristiansund .
Photos reprinted courtesy of Kvaerner ASA , Norway
From Nyhamna , the processed gas is transported through the 1,200km long Langeled Pipeline to a gas terminal in Easington , England . The plant on Nyhamna currently satisfies approximately 20 % of the British demand for gas .
Within the scope of the most recent expansion project , the processing capacity of the Nyhamna plant has been increased from 70 million to 84 million standard m ³ per day . Thanks to the new , 480km long Polarled Pipeline , the plant will also be connected to several gas fields in the Norwegian Sea . The Nyhamna Plant will now be able to supply the daily requirements of up to 22 million households in Europe with gas .
In addition to the construction of a new processing unit , a hydrogen sulfide removal unit , several storage tanks and some buildings for the associated infrastructure , the expansion of the Nyhamna plant also includes the installation of compressors that will allow the extraction of large amounts of gas from the Ormen Lange Field . Two of the new compressors will increase pressure in the gas field and another compressor will increase the output of the Langeled Pipeline .
Stable foundations had to be erected for the new compressors . For this purpose , 164 permanent DYWIDAG Strand Anchors with 19 strands in lengths from 13 to 19m and 72 permanent DYWIDAG Strand Anchors with 17 strands were installed in the foundations .
The DSI licensee DYWIDAG Norge AS supplied all anchor systems and also carried out part of the tensioning work . Work was made difficult by the dangerous environment . For instance , it was not allowed to cut the strands using standard angle cutters due to the risk of explosion . To rule out potential flying sparks , the assembly team had to use special water cooled diamond wire cutters .
Owner Norske Shell AS , Norway General Contractor Kvaerner ASA , Norway Contractor AF Gruppen Norge AS , Norway Subcontractor Nordisk Fundamentering AS , Norway Consulting Engineers Multiconsult AS , Norway
DSI Licensee DYWIDAG Norge AS , Norway DYWIDAG Norge Scope Production , supply , installation , technical support DYWIDAG Products 164 permanent DYWIDAG Strand Anchors with 19 strands and 72 permanent DYWIDAG Strand Anchors with 17 strands
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