Synthetic based fluid (SBM) (also known as Low Toxicity Oil Based Mud or LTOBM).
Synthetic based fluid is a mud where the base fluid is a synthetic oil. This is most often used on offshore rigs because it has the properties of an oil-based mud, but the toxicity of the fluid fumes are much less than an oil-based mud.
This is important because when men work with the fluid in an enclosed space such as an offshore drilling rig. The same environmental problems and contamination for analysis of rock samples occurs using Synthetic-based fluid.
