Sensitivity Analysis of Oil Well Cement Pastes Under Creep

Resumo

Creep is the phenomenon of increasing deformation under sustained loads. Cement pastes, used for cementing oil wells, are subjected to this phenomenon through the application of mechanical, temperature, and pressure loads. These pastes under these conditions are the focus of this study. Consequently, this work uses the creep functions developed in Vitor Colimodio's master's dissertation, defended at COPPE research center of Universidade Federal do Rio de Janeiro, and applies them on the behavior of concrete casings for cementing oil wells. A sensitivity analysis was performed to evaluate the importance of each variable. The Tencim software, developed at COPPE, was used to perform the models.