Cementing In Drilling Cementing in drilling is a process used in the oil and gas industry to fill the annulus between the casing and the drilled wellbore with cement. It is done to ensure the stability and integrity of the well and to protect the surrounding environment. The cementing process involves pumping a cement slurry into the annulus and allowing it to set. The cement creates a mechanical bond between the casing and the surface of the wellbore, preventing fluid from entering or leaving t