Shell Decommissioning Estimating System (DES)
Since 2016 we have worked with Shell to develop and maintain their global Decommissioning Estimating System (DES). Recently, DES has been upgraded to include modelling of decommissioning costs for offshore windfarms.
DES has been developed from first principals with extensive engagement from Shell Decommissioning Engineers, combined with analysis of current and historical Shell and Third Party Decommissioning Projects.
The system provides estimates for all of Shell's global portfolio of offshore assets, including windfarms. DES encompases the entire decommissioning scope from cessation of production to calculation of ongoing liabilities.
We have recently carried out a complete review of the decommissioning legislation in all regions that Suncor operate globally. This review was then used to develop a decommissioning estimating methodology and independent estimates developed for their global portfolio.
We have worked with Eni for the last five years assisting, with the planning, estimating and cost engineering support for six platforms in the Southern North Sea. This has involved Reviews of initial Decommissioning Plans and preparation of Detailed Comparative Assessments for initial option comparison. This support has continued through the engineering and planning phase, through to execution which is currently ongoing.
Over the last three years there has been a significant change in Indian Regulation for the decommissioning of offshore assets, and similar legislative changes are being implemented to cover onshore assets. We were commissioned by Cairn India to review the current and anticipated Indian Legislation to develop a recommended decommissioning methodology, this methodology was then used to develop detailed estimates for their onshore and offshore assets.