An innovative blend of fibers and sized solids, the Losseal engineered pill bridges thief zones that can lead to lost circulation while drilling and cementing. It is suitable for a wide range of environments, including natural fractures, dolomite and carbonate zones, rubble zones, depleted reservoirs, and reservoirs with known lost circulation problems. The Losseal system can even be pumped through BHA nozzles as small as 10/32 in—eliminating the need to pull out of hole.
The Losseal system creates a strong, impermeable grid that stops mud from flowing into high-permeability zones. It is designed to withstand additional pressure from mud density increases, and any future drilling or cementing operations. The treatment saves thousands of barrels of fluid during placement and reduces NPT caused by lost circulation.
Traditional lost circulation materials are often based on a fixed fracture width. The Losseal fiber pill is much less sensitive to fracture sizes and can be applied without detailed formation measurements.