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Subsea Plugging & Abandonment: Light Well Intervention Vessel Overview

Drillers

Category D: Production Drilling, with focus on completion and intervention needs. C are conventional rigs with low-pressure risers traditionally used for drilling and completing wells. The second phase is complete when all the potentials for flow are secured. Heavy intervention capability. MODUs or cat.

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Improving Plugging and Abandonment Procedures

Permian Basin Oil and Gas Magazine

If a temperature or bond log was not run at completion (or is lost), then a bond log should be run prior to plugging, unless cement circulation is proven in the record. However, a shut-in or temporarily abandoned well will only degrade with time due to the downhole fluid exposure. Set timelines for plugging a well.