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Home > KOSUN News >
Harmless treatment of shale gas oil-based mud
Sep 24, 2025
During the development of shale gas, horizontal drilling operations generate a large amount of waste oil-based mud. If this type of slurry is discharged directly without proper treatment, it will not only cause serious pollution to the natural environment such as soil and water bodies, but also lead to a large waste of oil resources. At present, the centrifugation-distillation treatment technology initially applied in engineering still has problems such as high operating costs and low treatment efficiency. Therefore, Kosun Machinery is actively committed to developing efficient, economical and environmentally friendly processes for the treatment and resource recovery of waste oil-based mud, providing key technical support for promoting the large-scale green development of shale gas.
In response to the current industry pain points of inconsistent methods for determining the oil content of waste oil-based mud and significant data differences, Kosun Machinery has established a scientific and reliable component analysis method for waste oil-based mud through systematic comparison and experimental research, covering key indicators such as oil content, water content, solid content, organic matter content and density. Based on this, the company focused on the research and development and evaluation of three treatment and recovery processes: sonochemical demulsification - centrifugal separation, centrifugation - low-temperature thermal distillation, and centrifugation - vacuum thermal distillation, and systematically analyzed their treatment efficiency and economic benefits under laboratory conditions.
Drawing on advanced treatment experiences both at home and abroad, Kosun Machinery has further improved the full-component analysis system for waste oil-based mud and developed corresponding treatment equipment. After actual processing and verification, the oil content of the oil-based waste treated by Kosun equipment is significantly lower than the limit values stipulated in the "Emission Standard of Pollutants for Onshore Petroleum and Natural Gas Extraction Industry (Draft for Comment)" of China - that is, the oil content for landfill in ponds is less than 3%, and the oil content for land disposal is less than 1%, fully meeting the environmental protection emission requirements.
The treatment solution provided by Kosun Machinery not only realizes the harmless treatment of waste oil-based mud, but also achieves the efficient recovery and reuse of oil resources, with significant environmental and economic benefits. We sincerely welcome both new and old customers to consult technical solutions and exchange process experiences, and jointly contribute to the sustainable and green development of the shale gas industry.
