Well Control Incident Definitions

IOGP Report 660

IOGP Members can also access all publications via the library in the Members Area

SKU: 660 Category:


This document provides a classification system for Well Control Incidents (WCIs). A WCI occurs when there is a failure or degradation of the defined well barrier envelope(s) that are designed and managed to keep fluids in the well or the reservoir. This classification system was established to allow IOGP Member Companies to notify each other, and the wider community, of the lessons learned from well control incidents and near misses. The sharing of these lessons helps to promote learning, avoid the repetition of similar errors, and enable safer operations.