Potential for CO2 storage in depleted fields on the Dutch Continental Shelf–Cost estimate for offshore facilities

Abstract A study was performed on capital and operational costs for offshore injection of CO 2 into depleted fields. The main focus was on the design and costs of process requirements for injection, required conservation (hibernation) and modification of existing platforms between end of gas/oil production and start of CO 2 injection. Also cost estimates for new platforms are provided. The study is ‘high level’ and generic in nature as no specific target for CO 2 storage has been selected. For the purpose of this study a simplified approach is used for determination of the required injection facilities and platform modifications. Nevertheless, the study provides a good indication on the level of expenditures that can be expected.