セラミック膜を用いた油田随伴水処理フィールド実証

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書誌事項

タイトル別名
  • Industrial Scale Field Demonstration of Ceramic Membrane Based Produced Water Treatment
  • セラミックマク オ モチイタ ユデン ズイハン ミズショリ フィールド ジッショウ

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抄録

Globally, water production from oil and gas fields has been more and more increasing and thus the treatment and/or the reuse of produced water has become one of the top issues in oil and gas industry. Produced water reinjection (PWRI) to “tight” or low permeable reservoirs requires high levels of removal of suspended solids (SS) and oil-in-water to prevent formation plugging. Reverse osmosis (RO) technology, which creates desalinated water for various ways of utilization, also requires exhaustive removal of SS and oil–in–water as pretreatment. Microfiltration by ceramic membranes is considered as an effective solution for these applications because ceramic membranes offer higher hydrophilicity, lower fouling by oil–in–water and broader chemical and thermal compatibilities. An industrial scale produced water treatment demonstration plant has been installed in an oilfield to test performance of ceramic MF membranes. The plant includes a crossflow filtration system which accommodates commercial ceramic membranes (180 mm Dia., 1,500 or 1,000 mmL) followed by an RO membrane unit. Seven months of the field demonstration allowed us to develop protocols for sustainable operation although feed water qualities varied very widely in terms of concentration of oil–in–water and other foulants. The filtrate contained SS and oil–in–water not higher than 1 mg/L and 10 mg/L respectively at all times during the test period. That means it has been proved that the ceramic membrane can be very effective for PWRI to tight reservoir and alleviate plugging risk. Silt–density–index (SDI) of the filtrate, an indicator of RO feed water quality was not higher than 3.0 and the average was 1.6, ; this indicates the membrane–filered water is appropriate for the RO feed.

収録刊行物

  • 膜

    膜 44 (4), 174-177, 2019

    日本膜学会

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