Material selection philosophy for casing

I'd like to get the forums views on the philosophy for the selection of casing materials in the case of an onshore HPHT project with a reservoir fluid that is moderately sour.

In a conventional well that is completed with a packer and tubing string, little or none of the production casing is ever exposed to reservoir fluids. Only in the event of a failure of a primary barrier (hanger, tubing packer etc) is the production casing exposed to such fluids. As such, what are the philosophical or policy approaches used by other operators to guide selection of a suitable casing material?

Regards,
Bruce Richardson

4 Answer(s)

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