Applications of bismuth alloys in well completion and well plugging 

PhD Candidate Lewaa Hmadeh

Main Supervisor Behzad Elahifar

Sponsor: NTNU

Lewaa’s research topic “Applications of bismuth alloys in well completion and well plugging” aims to evaluate and test bismuth-tin alloys as a potential alternative to cement which is currently the mostly used sealing material. Cement has shown weak sealing integrity over the long run and the urge of finding an alternative has become more important. Lewaa’s research will mainly focus on the behavior of bismuth-tin alloys as a sealing plug in representative wellbore conditions. The research study will propose and evaluate applications of bismuth alloys in well completion and P&A. The project’s goal is to qualify short bismuth alloys as safe, cost effective and environmentally friendly sealing materials.