Mechanical Degradation of Well Cement in HPHT Carbonic Acid Environment: Experimental Studies and Mathematical Modeling

• Main Author: Omosebi, Omotayo
• Other Authors: Ahmed, Ramadan, Pigott, John, Shah, Subhash, Pournik, Maysam, Ghassemi, Ahmad
• Language: English
• Published: 2016
• Subjects: Cement Degradation; High Pressure and High Temperature (HPHT); Acid Attack; Carbon Dioxide (CO2)-Saturated Brine; Psi; Carbonic acid
• Online Access: http://hdl.handle.net/11244/45042

Cement exposed to brine saturated with CO2 gas undergoes combination of chemical processes leading to mechanical degradation after placement behind the casing. These processes are influenced by downhole conditions such as temperature, pressure, and the composition of CO2 gas. The objectives of this...