Light intervention vessel perforates North Sea wells

Click here to enlarge imageThe light well-intervention vessel CSO Seawell re-entered and reperforated two active subsea water-injection wells in Statoil's Heidrun field, offshore Norway. Coflexip Stena Offshore Norge AS, operator of the vessel, says one of the wells re-entered at Heidrun was in 340-m water, which is 150 m greater than the previous record for such an intervention.In addition, it says this was the longest and most deviated well ever re-entered by CSO Seawell using tools deployed on wireline. One well, with a measured depth of 5,657 m, had a 79degrees deviated section and access into this well was made possible with an electric wireline well tractor, which, it says, ph...

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