Microcystis-bloom in Fenghuangshan reservoir occurred in Feb. -2009, long water retention time, low precipitation and inflow, high temperature were the main reasons.
The bottom of the reservoir shall be designed to provide adequate retention time of the heat transfer fluid to ensure positive heat transfer.
流体贮存器必须为热传导流体提供适当的停留时间，以保证能够进行充分的热交换。
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The critical flow velocity of reservoir, sand production rate of oil well and sand control rate of sand retention layer are the key of the technology that is successfully used.