Abstract
Abstract
Lost circulation has become one of the major technical risks while drilling a well. It can also represent much higher costs when unplanned rig time adds up to the well's total cost. A new tailored spacer system (TSS) engineered with loss circulation material (LCM) identified further on as an engineered LCM spacer (ELS) plus a cement slurry with fibers are evaluated in this discussion to effectively seal off partial-to-severe losses in deepwater cementing operations maximizing the success of planned zonal isolation in front of production zones.
Comprehensive engineering and operational reviews were conducted in order to provide a best-in-class solution to minimize the losses in the well-known troublesome Mississippi Canyon (MC) block of the Gulf of Mexico (GOM), adding LCM into both the spacer and the cement backed up with software analysis and laboratory testing.