Mud-free operations involve changing the traditional practice of constructing large mud pits for drilling operations. Through process technology, cuttings, waste mud, and slurry are treated, and wastewater and a portion of the mud are recycled, reducing land use and environmental pollution.

Mud is often referred to as the "blood" of drilling operations. The conventional approach in the petroleum industry is to excavate a large mud pit, typically covering an area of about 3 acres, for each well drilled. After construction, it is difficult to restore or reclaim the land and vegetation. This leads to wastage of land resources. Furthermore, the liquid and solid waste generated during construction processes also pose pressure on the ecological environment. It is conservatively estimated that an average well produces approximately 5,000 cubic meters of solid-liquid waste, and transporting it to a centralized treatment site incurs significant transportation costs.

The key to achieving mud-free operations lies in on-site treatment after solid-liquid separation. Kexun's mud-free system utilizes the coagulation and settling effects of polymers and clay particles to facilitate rapid sedimentation of solid particles in the mud. The settled solids are then conveyed to a drying machine for centrifugal drying, achieving solidification and transportation, while the separated filtrate is recycled for reuse. The ideal scenario is to achieve rapid and high-quality solid-liquid separation during drilling, control the moisture content of the solid phase, ensure the repeated use of the liquid phase, and transform the process from "external circulation" to "internal circulation".