DNV releases CCS well integrity guideline

2011-07-26 12:07 by Anja Reitz

DNV releases CCS well integrity guideline

Aimed at project developers and authorities, it describes a generic framework process for managing the risks associated with existing wells at carbon dioxide (CO2) storage locations, both onshore and offshore.

DNV has previously published industry guidelines across the full CCS value chain of capture, transport and storage. These guidelines have been implemented by a number of companies for their current and planned CO2 operations, as well as being adopted by authorities as a component in their own regulations.

The CO2WELLS guideline represents the latest addition to this series. Within the field of CO2 geological storage, it supplements DNV’s CO2QUALSTORE guideline which was published in 2010 following a similar joint industry initiative.

Together, these two guidelines provide a generic capital value process for CCS projects that is designed to qualify geological storage sites through iterative cycles of risk and uncertainty reducing measures. The integrity of existing wells at CO2 storage sites has been highlighted as a potential concern, and the new CO2WELLS guideline addresses this issue head on.

The guideline describes a risk management framework for existing wells at potential CO2 storage sites, both onshore and offshore. It is aimed at project developers and authorities and includes guidance on:

- Risk assessment of active and abandoned wells during the initial screening of candidate storage sites;

- The qualification of these wells for continued or modified use in a CCS project.

The guideline is consistent with the ISO31000 international standard for risk management and with current and emerging regulations for CO2 geological storage in the US, Canada, Europe and Australia.


Source: carbon capture journal http://www.carboncapturejournal.com/displaynews.php?NewsID=819&PHPSESSID=b4nl67urnkg1mqs8f9msj2iun7

Go back