Cutting Sludge Out of the Permian Equation

WT Oil & Gas and EnviroKlean debut a solids-free recycling system in the Permian, aiming to cut waste and simplify operations

21 Jan 2026

WT Oil & Gas and EnviroKlean have launched a produced-water recycling system in the Permian Basin that seeks to eliminate solid waste from treatment, positioning it as a lower-cost and lower-liability alternative for shale operators.

The Zero Solids Recycle® (ZSR®) system is designed to process up to 150,000 barrels of water a day in a continuous-flow, fully staffed operation. The companies say the technology allows operators to reuse produced water without generating sludge or other solid byproducts, reducing the need for haul-off and disposal.

Handling produced water, a byproduct of oil and gas extraction, remains one of the sector’s most persistent operational and environmental challenges. In the Permian, where output levels are high, water volumes can exceed oil production, making treatment and disposal a significant cost.

Conventional recycling methods, such as dissolved air flotation (DAF) and so-called “floc and float” systems, remove contaminants by converting them into solids. These solids must then be managed and transported. The ZSR® system instead aims to keep contaminants dissolved, preventing solids from forming and producing what the companies describe as “frac-ready” water.

According to the companies, the treated water remains stable and avoids issues such as souring or the generation of hydrogen sulphide gas. They also point to a smaller surface footprint, as the system does not require DAF units, sludge pits or weir tanks. Claims of improved oil recovery are company-reported and have not been independently verified.

The partnership reflects a broader shift in shale operations, where water reuse and logistics are becoming central to cost control and well performance. In high-activity basins such as the Permian, operators are seeking more predictable treatment outcomes across varying water chemistries.

If the system proves consistent at scale, solids-free recycling could gain wider adoption as producers look to streamline field operations and manage rising water volumes alongside sustained drilling activity.