Decommissioning

Decommissioning of a oil rig

Decommissioning

We have extensive experience preparing Decommissioning estimates (DECOMEX) for both onshore and offshore facilities throughout the world. Decommissioning estimates are prepared using our proprietary estimating model, originally developed from actual project data and regularly updated to reflect current market conditions and the latest decommissioning practices.

Our decommissioning experience covers a broad scope from; Order of Magnitude estimates using very ‘high-level’ data such as the rate of Oil / Gas production, through to Detailed Estimates produced when the facility is actually being prepared for disinvestment.

In total we have prepared over two hundred decommissioning estimates for a large number of different clients around the world.

Decommissioning Case Studies & System Development

Please select a company below to read more.

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.

Suncor

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.

Eni

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.

Cairn India

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.

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.

Suncor

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.

Eni

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.

Cairn India

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.