This reference is for an abstract only. A full paper was not submitted for this conference.


As global trendsetters in underbalanced operations, Canadian operators are taking a bold new approach to the drilling phase. Recently as a result of increased QHSE concerns around snubbing operations, operators are considering alternative methods to trip under live well conditions. This presents the opportunity to explore new alternatives in pressure control during underbalanced operations, as opposed to conventional methods such as snubbing and killing the well with an overbalanced fluid column. These methods createglaring problems such as rig non-productive time, environmental and safety hazards, and wellbore damage. One such alternative is the downhole isolation valve.

The downhole isolation valve is a casing deployed valve system that is set at a predetermined depth and used to shut-in the well to allow for deployment of the drill string and completion assemblies.

This paper will discuss the needs of operators and how they were met with the downhole isolation valve, the benefits realized by deploying this technology, and the results from wells where these tools were run.

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