CEMENTING

DiverterPlus Cementing products are temporary diverting materials used to improve circulation and cement bonding. During placement, DiverterPlus is a solid degradable polymer material capable of bridging across highly permeable formations due to either high porosity, natural or induced fractures near the wellbore. After successfully plugging the loss zone(s), the diverter is designed to hydrolyze to a clear, non-hazardous liquid. This process is driven simply by time, temperature, and pressure in the presence of water meaning that no additional remedial work is necessary and no subsequent damages if deployed in reservoir sections.  

Key Design Factors

 Regain circulation in severe loss conditions

 Reduced risk of formation damage when cementing the reservoir section.

 Various deployment plans allow for tailored squeeze solutions, deployment in cementing or spacer.  

Benefits and Outcomes

 Minimal formation damage due to degradability of product

 Reduced cementing fluids Losses

 Improved cement bonding

A key component in improving cement bonding and controlling costs is stopping or preventing lost circulation while cementing. This is accomplished by the many available options of lost circulation material (LCM), however most LCM types available in the market today do not address the amount of formation damage or the negative impact on cement bonding they can cause. Through lab testing and field applications, degradable LCM has shown to be a cost-effective solution for not only stopping losses but also in addressing these two issues. DiverterPlus’ Cemvert+ line of products has proved to be effective for plugging various fracture widths at different temperatures while maintaining stability to cure losses then degraded over time to mitigate reservoir damage and improve cement bonding.