The ideal pump-and-plug scenario at a new oil well is a single-stage cementing job performed through the bottom of the casing, with the cement circulating to the top of the target area in the annular space. A uniform layer of cementing is created to support and provide a seal around the surface casing. As a result, drilling can resume.
However, drilling must stop if voids develop in the surface casing cementing. Delays in drilling can prove costly for the oil company.