For the oil and gas industry, coarse filtration of various fluids is critical to ensure reliable production, extend the life of a wide variety of upstream and downstream equipment, and increase the intervals between backwashing or necessary maintenance.

Upstream, production wells often use coarse filtration (from 30-100 microns) to remove sand, solids, or debris during secondary phase waterflooding—where clean, filtered water is introduced into a rock layer through injection wells to push residual oil to operating wells.

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