Sentences with annulus
an·nu·lus
A a - Cement casing involves filling the annulus between the casing and the wall of the hole with cement to support the casing and to prevent fluid migration between permeable zones.Perforation provides holes in the casing so that materials may be introduced into the annulus between the casing and the wall of the borehole.An annulus is the space between two concentric objects, for example, between the wellbore and casing.
- The gel-like center of an intervertebral disc is held together by layers called the annulus fibrosis.