Cementing Technology and Procedures : cement classes according to api specifications, slurries, general information on flow regime and on spacers, mud conditioning before cementing, one-stage cementing and two-stage cementing, cementing with stinger, cementing a liner, thixotropic slurries, cement gels, cement slurries without additives and their placement, plaster diesel oil cement (pdoc) and diesel oil cement (doc), and their placement, losses during slurry placement, slurry over displacement, lack of tightness of the cement sheath, flash set, setting defect, lack of mechanical strength, cement deterioration, casing disconnection.