Conductor

Burst

Drilling : Displacement to gas

Eternal: Minimum Formation Pore Pressure

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Drilling Loss return with mud drop

Cementing

External: Mud & cement mix water

Surface

Burst

Drilling: Gas Kick

External:

Fluid Gradient with PP

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Loss return with mud drop

External: Mud & cement mix water

Production

Burst

Tubing leak : production load

External: Mud & cement mix water

Collapse

Partial/full evacuation

External: Mud & cement mix water

Liner

Stimulation leak surface

External: Permeable zone

Production: Full evacuation

External: Permeable zone