What slang term is used to describe moderate to severe flocculation of drilling mud due to contaminants, also called gelled-up?

• A. Clabbered
• B. Flocculated
• C. Gelled-up
• D. Gelled

Answer: (A)

The slang term used for moderate to severe flocculation of drilling mud caused by contaminants is gelled-up. This phrase captures the mud turning into a thick, jelly-like mass that resists pumping and flow. While technical terms like flocculated describe the process, and gelled simply notes the gel state, gelled-up is the field-friendly expression that signals a problematic, highly viscous mud. The other options aren’t the common slang used in this context.