Experimental and Computational Studies of CO2-Reactivity with Cement and Steel in the Wellbore Environment
Abstract Not Provided
Earth Sciences↗
Engineering topics
Carey, James W
Publications and source records attributed to Carey, James W.
CO2-Water-Rock Interactions and the Integrity of Hydrodynamic Seals
No abstract prepared.
02 PETROLEUM↗
Wellbore Integrity Network
In this presentation, we review the current state of knowledge on wellbore integrity as developed in the IEA Greenhouse Gas Programme's Wellbore Integrity Network. Wells are one of the primary risks to the successful implementation of CO{sub 2} storage programs. Experimental studies show that wellbore materials react with CO{sub 2} (carbonation of cement and corrosion of steel) but the impact on zonal isolation is unclear. Field studies of wells in CO{sub 2}-bearing fields show that CO{sub 2} does migrate external to casing. However, rates and amounts of CO{sub 2} have not been quantified. At the decade time scale, wellbore integrity is driven by construction quality and geomechanical processes. Over longer time-scales (> 100 years), chemical processes (cement degradation and corrosion) become more important, but competing geomechanical processes may preserve wellbore integrity.
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗