1. Keatch RW. Removal of sulphate scale from surface. GB patent 2 314 865; 1998. URL: http://www.directorypatent.com/GB/2314865-a.html.
2. Corrosion and scale handbook;Becker,1998
3. Fighting scale – removal and prevention;Crabtree;Oilfield Rev,1999
4. Effective management of scaling from and within carbonate oil reservoirs, North Sea basin;Jordan;Chem Eng Res Des,2003
5. Scale control within the North Sea chalk/limestone reservoirs-the challenge of understanding and optimizing chemical-placement methods and retention mechanisms: Laboratory to field;Jordan;SPE Prod Facil,2005