Optimizing the Cement Performance on Wells Subjected to Losses and Revolutionizing Wellbore Integrity: With External Casing Packer Ensuring Long-Term Wellbore Integrity – A Pakistan Case Study
In this case study, drilling into unexpectedly weak formations led to inadequate cement behind the 13-3/8-in. and 9-5/8-in. casings, threatening well integrity. A robust solution combined advanced formation strengthening using non-reservoir-damaging chemicals and deployment of four external casing packers (ECPs). Thi...