Possible indicators for CO2 leakage along wells

A preliminary analysis of this information indicates that 4.6% of these wells have recorded surface casing vent flow or gas migration through wellbore annuli or outside casing. Data analysis shows that there is a correlation between these occurrences and economic...

Why Oil Wells Leak: Cement Behavior and Long-Term Consequences

Oil and gas wells can develop gas leaks along the casing years after production has stopped and the well has been plugged and abandoned. Explanations include channeling, poor cake removal, shrinkage, and high cement permeability. The reason is probably cement...

Oh, Canada’s Become a Home for Record Fracking

Though the same themes of balancing economic benefits with environmental harms occurs in Canada as in the U.S., the Canadian western areas’ enthusiastic embrace of large scale fracking provides onlookers with a vision of what could happen if there was less regulation...