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Dehydration of Carbon Dioxide for CCUS Featured Image

Dehydration of Carbon Dioxide for CCUS

CCS is seen by many bodies such as the IEA and the IPCC as a one of the key enablers to decarbonising the economy. Transportation of CO2 is a key focal area in any CCS project but while dehydration of natural gas for transportation is well understood and regulated, the same cannot yet be said for CO2.

CO2 in the Subsurface - From EOR to Storage

The Intergovernmental Panel on Climate Change (IPCC) and the International Energy Agency (IEA) have issued recent reports suggesting that deployment of carbon dioxide capture and storage (CCS) can significantly reduce the cost of achieving CO2 emission reduction targets. However, several questions remain: Under what circumstances will large-scale deployment take place? Where and when will this occur? How large a role will CCS play in stabilizing atmospheric concentrations of CO2? I will review the current status of CO2-EOR and geologic storage focusing on subsurface lessons learned and their implications for large-scale CCS. Our industry has a long history with CO2-EOR that provides a strong experience base for CO2 storage. However, CO2-EOR alone will be insufficient to meet emission reduction targets and storage in deep saline aquifers is also being investigated.Experience from operating CCS projects shows that subsurface storage capacity in saline formations can be limited by dynamic injectability factors. Hundreds of years of CO2 storage capacity is potentially available, even after accounting for dynamic limitations, but the areal distribution of potential storage capacity is widely varied. Geologic and reservoir engineering studies will be essential for identifying storage sites having adequate capacity, containment, and injectivity. Petroleum engineers will play a key role in these studies. Presented by Dr. Gary Teletzke

IEA Sustainability Scenarios Featured Image

IEA Sustainability Scenarios

​Scenarios for outlooks of energy demand and supply are important tools for policy makers and the industry to evaluate the impact of policy options on a number of societal development issues. Most of the outlooks incorporate a scenario with current (or announced) policies; they may also include variations, such as sensitivity analysis on exogenous factors (such as economic growth), or more fundamental changes such as strong carbon-reduction measures.

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