Plug and Abandonment Basics - George E King Petroleum ...

Pipe damage may necessitate pulling operations not in the original plans. Cement plugsgenerally need to be circulated into place – a functional tubing string is required.Special Conditions and considerations:1. Collapsed or burst pipe – repairs are difficult because the tubing has to be fished, often inpieces. Burst sections have to be sealed and isolated. Setting effective cement plugs iscritical.2. Channels and fractures in annulus cement or shoe areas. Setting long cement plugs requireseffective sealing of fractures.3/14/2009 6George E. King EngineeringGEKEngineering.com