KOSUN’s common waste oil-based drilling mud treatment method is the mechanical equipment treatment method.

During the drilling process, mud is injected into the wellbore through the drill pipe, carrying cuttings. After drilling is completed, there will always be a portion of excess or waste mud. The composition of waste drilling mud is complex, generally alkaline, with a PH value between 8.5 and 12. The particle size of solid particles is generally between 0.01μm and 0.3μm (i.e., more than 95% of particles pass through a 200-mesh sieve). It usually appears as a viscous fluid or semi-fluid, with characteristics such as small particle size, relatively uniform particle size distribution, high viscosity, and high water content that is difficult to dewater (water content is approximately between 30% and 90%).  Moreover, the natural drying process of waste drilling mud is slow, and the dried material can easily rehydrate when exposed to water, leading to long-term adverse effects on soil properties at discharge points and nearby areas. Waste mud often contains a high oil content, with some waste drilling mud having an oil content of over 10%.  Additionally, due to the presence of various organic and inorganic chemical additives in waste drilling mud, most of these substances are difficult to biodegrade. Therefore, waste drilling mud needs to be treated to reduce its volume.

KOSUN’s common method for treating waste oil-based drilling mud is the mechanical equipment treatment method. This method utilizes specialized equipment in the oil-based mud no discharge system, such as the cuttings dryer and centrifuge, to remove moisture from the oil-based mud, significantly reducing its water content.

Tag: waste oil-based drilling mud treatment method

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