Special Report: Reverse osmosis treatment of CBM produced water continues to evolve

A comparison of two treatment plant designs shows the evolution of the reverse osmosis process for treating produced water from Powder River basin coalbed methane wells.Both designs incorporate reverse osmosis (RO) and recovery reverse osmosis (RRO) because this configuration has proven effective for meeting produced water treatment objectives.Each year US oil and gas onshore operations generate about 15-20 billion bbl of produced water. By comparison, the Wyoming, Powder River basin produces between 700 and 900 million bbl/year of water from natural gas wells.CBM productionCoalbed methane recovery techniques are unique when compared with other production methods because hydrostatic press...

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