Cementing operations are generally categorized into two types:
The cement creates a protective barrier that passivates the steel casing, shielding it from corrosive subsurface fluids.
By forming an impermeable seal, it helps prevent blowouts . Primary vs. Remedial Cementing
It anchors the heavy steel casing string to the borehole wall.
Performed immediately after a casing string is run to provide the initial seal.