Microblock HT is in principle developed for offshore usage in fields with BHST of > 115C (239F) to prevent strength retrogression.
The product prevents strength retrogression, thus eliminating the need for dry-blends and subsequently two types of cement onboard the rig. Logistics are simplified as only a single type of cement (G-class) is required (download figure 1
). Other benefits the product offers, include: easy sampling, better HSE, higher quality cementing.
Furthermore it is based on the well known Microblock principle, resulting in more benefits in the cement slurry design, such as: zero free water, low fluid loss, low viscosity, stable cement slurries and early strength development.