Definition(s)
Drilled Solids
Formation solids which enter the drilling-fluid system, whether produced by the drill bit or from the side of the borehole.
Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards
Drilled Solids
Drilling solids or cuttings are particles that are generated by drilling into subsurface geological formations and are carried to the surface with drilling muds.
Source: Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. Regulatory Guidance
Drilled Solids
Drilling muds are fluids that are circulated in oil and gas wells to clean and condition the hole, to lubricate the drill bit and to counterbalance formation pressure. These muds consist of a “continuous phase” which forms the base fluid and in which the various other mud components are suspended or dissolved. Depending on the nature of the well to be drilled and the technical requirements, wells may be drilled using one mud system from top to bottom, or may require modifications to the mud formulation or mud type as the well progresses.
Source: Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. Regulatory Guidance