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  • a study of hydrate plug formation in a subsea natural gas pipeline using a novel high-pressure flow loop

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 946
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the natural gas pipeline from platform qk18-1 in the southwest of bohai bay to the onshore processing facility is a subsea wet gas pipeline exposed to high pressure and low temperature for a long distance. blockages in the pipeline occur occasionally. to maintain the natural gas flow in the pipeline, we proposed a method for analyzing blockages and ascribed them to the hydrate formation and agglomeration. a new high-pressure flow loop was developed to investigate hydrate plug formation and hydrate particle size, using a mixture of diesel oil, water, and natural gas as experimental fluids. the influences of pressure and initial flow rate were also studied. experimental results indicated that when the flow rate was below 850 kg/h, gas hydrates would form and then plug the pipeline, even at a low water content (10%) of a water/oil emulsion. furthermore, some practical suggestions were made for daily management of the subsea pipeline.

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