Oil Well Cement Features
Appropriate setting time. Under different temperature and pressure conditions, the oil well cement slurry has a long thickening time to ensure that it can quickly set after cementing and produce certain mechanical strength. The interval between its initial and final setting time is short.
Oil Well Cement Functions
It supports the casing and the vertical and radial loads applied to the casing.
It forms a quick and sealed extraction channel for the oil or gas layer to prevent mixed flow and burst.
Oil Well Cement Types
According to the US API specification, oil well cement can be classified into eight grades. Each grade is further divided into ordinary type (O, C3A < 15%), moderate sulfate resistant type (MSR, C3A ≤ 8%, SO2 ≤ 3%), and high sulfate resistant type (HSR, C3A ≤ 8%).