Long-Term Casing Integrity vs. Conventional Cementing
A well maintains both internal and external pressure integrity primarily through the casing string. For common casing sizes such as 146 mm, 168 mm, and 178 mm, the steel is typically pressure-tested to 10–14 MPa, confirming its role as the primary pressure-containing barrier. Cement, while important, is not designed to serve as the main barrier










