Diesel-based mud (DBM) is a type of drilling fluid commonly used in the oil and gas industry for drilling operations. Composed primarily of diesel oil as the continuous phase, it includes various additives like emulsifiers, wetting agents, and viscosifiers to enhance its performance. In the context of cement and concrete, the interaction between DBM and these materials becomes relevant during the construction of oil wells, where cement is used to secure the well casing and isolate different subterranean zones. Understanding how DBM interacts with cement is crucial for ensuring the integrity and longevity of well constructions, particularly in environments that expose these structures to severe conditions.