Canada’s Antrim Energy has awarded a contract to Offshore Installation Services (OIS) to permanently plug and abandon four subsea wells in the UK Central North Sea.

Under the contract, OIS will the three wells being abandoned will comprise three suspended wells on the Fyne Licence (P077, Block 21/28a) with one well on the Erne Licence (P1875, Block 21/29d).

The contract will be carried out as part of a ten-well abandonment campaign, which also includes six central North Sea wells from Centrica Energy.

According to OIS, an Acteon company, the campaign will include complete offshore and onshore project management, vessel charter, equipment and personnel.

OIS president Rhodri Davies said: "Since 1996, OIS has successfully completed more than 118 well decommissioning projects without a single lost-time incident.

"With Antrim Energy and Centrica Energy now involved in our 2015 subsea well abandonment campaign, OIS is currently decommissioning ten subsea wells within the UK Continental Shelf."

How well do you really know your competitors?

Access the most comprehensive Company Profiles on the market, powered by GlobalData. Save hours of research. Gain competitive edge.

Company Profile – free sample

Thank you!

Your download email will arrive shortly

Not ready to buy yet? Download a free sample

We are confident about the unique quality of our Company Profiles. However, we want you to make the most beneficial decision for your business, so we offer a free sample that you can download by submitting the below form

By GlobalData
Visit our Privacy Policy for more information about our services, how we may use, process and share your personal data, including information of your rights in respect of your personal data and how you can unsubscribe from future marketing communications. Our services are intended for corporate subscribers and you warrant that the email address submitted is your corporate email address.
"OIS is currently decommissioning ten subsea wells within the UK Continental Shelf."

OIS will use Acteon sister company, Claxton’s suspended well abandonment tool (SWAT) to decommission the sites in categories 2.1 and 1.

The diverless, vessel-based approach SWAT will be completed as part of a multi-operator campaign in summer 2015, which would be conducted from an anchor-handling tug supply vessel (AHTS), the Island Valiant.

In the initial phase, SWAT will be deployed through the vessel’s moon pool to set cement plugs in the bore and across all the casing annuli.

During the second phase, the wells will be cut and removed from the seabed using an abrasive severance system.

The ten-well abandonment campaign is expected to take about 45 days to complete.

Image: OIS will execute the contract as part of a ten-well abandonment campaign. Photo: courtesy of Offshore Installation Services Ltd.