Altus Intervention are the first to successfully deploy a new tubing punch technology for a well abandonment operation in the North Sea. CHALLENGE A North Sea operator wished to safely abandon an existing wellbore and re-use the slot for a sidetrack to access by-passed oil. The challenge was to punch 5 1/2 ½” 17 lb/f t tubing above T OC with no damage to the 9 5/8” casing using slickline conveyance. Due to a 45° well deviation, it was likel

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