Cotton Sand Socks (200 Micron) | Fine Particulate Flowback Filtration

The 200-Micron Cotton Sand Sock is a highly efficient filtration consumable designed for fine particulate removal in oilfield flowback, well testing, and produced water management. While larger micron ratings handle the bulk removal of heavy frac sand, this tightly woven 200-micron filter acts as a critical secondary defense. It is engineered to capture fine reservoir silt, pulverized proppant, and micro-scale that bypasses primary sand separators. If permitted to remain in the fluid stream, these fine abrasives act like liquid sandpaper, gradually eroding the internal seals of choke manifolds, plug valves, and delicate instrumentation.

A distinct advantage of the industrial cotton construction is its natural affinity for hydrocarbons. While the 200-micron pores mechanically trap solid particulates, the cotton fibers simultaneously work to absorb and strip trace oils, greases, and sheen from the water stream. This makes the cotton sand sock an exceptional choice for polishing produced water prior to it entering Saltwater Disposal (SWD) injection pumps or secondary separation phases.

Constructed for high-pressure oilfield environments, these filter socks feature heavy-duty reinforced stitching to withstand high differential pressures without bursting or allowing fine sand bypass. By delivering a cleaner, polished fluid stream, these sand socks significantly extend the operational lifespan of your critical downstream processing equipment.

Features & Benefits

• 200-Micron Fine Filtration: Tightly woven to capture fine silt, pulverized frac sand, and micro-debris that standard high-flow socks leave behind.

• Trace Oil Absorption: The natural cotton fibers actively absorb trace hydrocarbons, oils, and sheen from the fluid stream, providing superior water polishing capabilities.

• Secondary Sand Control: Ideal for deployment downstream of primary bulk sand separators to ensure absolute fluid clarity before disposal or reinjection.

• Heavy-Duty Reinforced Seams: Manufactured with rugged stitching designed to survive high differential pressures without rupturing or dropping debris into the flowline.

• Flowline Equipment Preservation: Eliminates the fine, abrasive particulates that cause slow, insidious wear on sensitive choke beans, pump internals, and instrumentation.

Specifications & Technical Details

Applications

200-Micron Cotton Sand Socks are primarily utilized in the later stages of well flowback or as a secondary filtration step downstream of 300-micron or 400-micron primary filters. They are heavily deployed in Saltwater Disposal (SWD) facilities to polish produced water, ensuring that injection wells do not become plugged by fine silt or trace oils.

Quality Assurance

Every batch of our 200-micron cotton sand socks undergoes rigorous quality control. The cotton media is verified for consistent micron density, and all seams are stress-tested to guarantee they will not fail under the heavy loading and high pressure differentials typical of continuous oilfield fluid processing.

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