The recent downturn in the price of oil has forced many oil and gas facilities to look for creative ways to reduce cost, particularly for capital expenditures. Such was the case for a plant in Texas, US, that needed to meet a growing demand for demineralised water and cooling tower make-up to support its production processes. A modular approach, combined with creative process design and operational flexibility, proved to be the answer that the facility was seeking.
The complexity of the situation at this plant was compounded by a limited fresh water supply. Increased withdrawal from the river was not possible, so the plant turned to well water and effluent from the local publicly owned treatment works (POTW) to meet its needs. As a result, a water treatment system had to be designed to treat two different influent water qualities for two different uses.
(Originally published in Hydrocarbon Engineering, January 2018)
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