Norway/Sweden: Scale inhibitor squeeze life extended ///

Norway’s Heidrun field is 175 km (109 mi) offshore the coast in the Haltenbanken area, and has produced oil from a TLP since 1995. Yet, the field has presented a challenging scaling environment to operator Statoil, due to high barium content in formation water, the use of seawater for pressure maintenance and the clay-rich sandstone. The latter generates a significant amount of fines during normal and unplanned operations. Scale control began in November 1999 with regular squeeze treatments.

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