General

This RP presents principles and practices for:

establishing site-specific environmental risk acceptance criteria

confirming compliance with safety criteria for the field/installation

determining the functional requirements for permanent well barrier materials

differentiating the environmental risk exposure relative to hydrocarbon composition.

Exclusions

This RP is not applicable for:

onshore wells

suspended wells

temporarily abandoned wells.

Application

This RP may be applied as a basis for risk-based decision making. It can be applied for:

evaluation of well abandonment designs

well abandonment design optimisation in relation to cost and material

evaluation of environmental performance for P&A wells

independent assessment and verification

guidance and quality assurance of P&A planning

stakeholder communication.

The requirements in this RP are intended to be subordinate to local regulations.

Users

Users of this RP may be:

well operators

regulators

suppliers

independent verifiers or examination bodies

investors, co-ventures, partners or other financial stakeholders.