Our industry’s objective is to produce and sequester resources to or from the surface in a controlled manner. The installation of competent lasting barriers is critical to the achievement of this objective. This session focuses on zonal isolation through cementing. Discussion will encompass barrier placement and efficacy. Reimagined technology, new laboratory validation, best practices and challenges to the status quo will be presented. Understanding the mechanics, chemistry, operational environment and tools for barrier construction are critical to sustaining a development. The technical progress displayed will further add to our industry’s capability to develop resources without a negative collateral impact.