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About this Virtual Instructor Led Training (VILT)

The active drilling-fluid system comprises a volume of fluid that is pumped with specially designed mud pumps from the surface pits, through the drillstring exiting at the bit, up the annular space in the wellbore, and back to the surface for solids removal and maintenance treatments as needed. The capacity of the surface system is usually determined by the rig size, and rig selection is determined by the well design. For example, the active drilling-fluid volume on a deepwater well might be several thousand barrels. Much of that volume is required to fill the long drilling riser that connects the rig floor to the seafloor. By contrast, a shallow well on land might only require a few hundred barrels of fluid to reach its objective. Drilling-fluid services of some kind are required on every well. They encompass a broad spectrum of systems, products, software, personnel specializations, and logistical support. As wells become more complex, total drilling costs can increase dramatically. Because the drilling-fluid system comes in contact with almost every aspect of the drilling operation, proper drilling-fluid selection can help the operator minimise costs throughout the well-construction process.