Challenge: Design a cement slurry that can be
used on a drillship with limited deck space, that achieves the required
compressive strength at a low temperature—for zonal isolation, and that
ensures complete cement coverage in a deepwater environment.
Solution: Use DeepCRETE cement system to
mitigate the technical challenges of a narrow margin between pore and fracture
gradients, low temperature at seabed, and unconsolidated formation.
Results: Achieved full returns to seabed,
reduced waiting-on-cement (WOC) time, and exceeded Shell’s leakoff test
(LOT) expectations.