3Sorgard,E.et al.: “Coiled Tubing Milling and Temporary Plug andAbandonment Operation.s, ''paper SPE 54472 presented at the 1999SPE/ICoTA .Houston,May 25?26.
4Brown,A.D.,M errett, S.J, Putman, S. : “Coiled-Tu bing M illing/Underreaming of Barium Sulphate Scale and Scale Control in theForties Field, "paper SPE 23106 presented at the 1991 Offshore Eu-rope Conference.Aberdeen,Scotland,Sept.3-6.