A complete replacement of oil-based mud with other mud types provides the largest reduction in discharges of oil-contaminated cuttings to the sea compared to any other solutions.
WHAT IS THE PURPOSE OF A DRILLING MUD?
The purpose of a drilling mud can be broken into nine basic functions:
In the drilling process, mud materials (barite, water, treating chemicals, etc) are mixed almost continuously to maintain desired mud properties. Drilling mud usage is defined as the volume of mud that is lost with the
drilling operation. This should be contrasted with mud consumption which is the total volume of mud created to support the drilling operation.
Onshore disposal options aim at incorporating drilling waste into either the surface (or rooting zone) or beneath the rooting zone. The former is
called land application. The latter is called burial.