Liner Cementing Equipment And Techniques

A liner is any string of casing with its top below the surface of the well. Previous papers have been written on the subject of liner cementing, but most of these papers on liners have emphasized their use in deep wells. Simpler uses of liner cementing equipment should also be discussed, since greater numbers of liners have been run in shallow-to moderate depth wells than in deeper wells. A discussion on conventional and special liner cementing jobs with illustrations of the equipment for these jobs is included in this paper. Problems concerned with liner movement during cementing are discussed.