Containment demonstration for the Barendrecht CO2 storage project

Shell CO2 Storage B.V. (SCS) is planning for the injection of some 10 million tonnes of CO2 in two depleted gas fields Barendrecht (BRT) and Barendrecht-Ziedewij (BRTZ). The project will be the first Dutch onshore injection project and can be regarded as a demonstration project to show that a framework is in place before implementing larger future sequestration projects. The primary focus of the subsurface study was to demonstrate containment of the CO2. A safety management plan on possible leakage from the containment was written, which documents possible physical and chemical threats, various barriers that are in place, probability and impact of leakage scenarios and a monitoring, prevention and response plan. It is demonstrated that no medium and high risk leakage scenarios have been identified in both the injection phase and post abandonment phase. Mitigating actions lead to a reduction of the "low" risk scenarios to a "negligible" status. (C) 2011 Published by Elsevier Ltd.