During the open and shut in period of a gas well, the gas flow within the borehole changes into transient flow.

 
  • 氣井開(kāi)、關(guān)井過(guò)程中,井筒內氣體的流動(dòng)為瞬變流動(dòng),氣體的壓力、溫度等流動(dòng)參數是井深和時(shí)間的函數。
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