Comparison of the heat insulation requirements for building envelopes between EnEV 2007 and EnEV 2009. The heat insulation requirements for building envelopes depending on reference values and various conditions have been changed from EnEV 2007 (German Building Energy Conservation Ordinance) to EnEV 2009....
Key words : HWU; Milling; Cement retainers; Cement plug; Workover; Bell Nipple; Wellbore clean-updoi:10.4314/afrrev.v8i3.9Dr. Chelladurai GanesamoorthyM. Sc. Jana WeßingM. Sc. Clarissa KrollDr. Rüdiger W. SeidelDr. Christian GemelProf. Dr. Rol A. FischerAngewandte Chemie...