Sementblanding samt fremgangsmate for a oke strekkfastheten av en sementblanding og fremgangsmate for a sementere i en undejordisk formasjon

摘要

Cement compositions having enhanced mechanical properties and comprising microspheres and carbon fibers are provided herein. The cement compositions comprise a cement material, carbon fibers, microspheres, sufficient water to form a slurry, and optionally other ingredients.