Liner Cementing Long Life Techniques

The Long Life Technique is a revival of an old cementing practice whereby cement slurry is placed in the well and casing is then lowered into the cement. Recent development of cement additives has appreciably widened the range of well conditions in which this technique can be employed. Difficulties are often encountered when planning and performing liner primary cementing jobs in projects where the annulus is unusually small and in projects where the open hold portion of the well is not sufficiently competent to support the hydrostatic weight of a high fluid column. Problems inherent to these two types of liner jobs are often minimized by the application of the Long Life Technique.