Simulation Research on the Erosion of Slotted Screen for the Unconsolidated Sand Formation

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• 作者：Deng Fucheng (1)
  Deng Jingen (1)
  Hu Lianbo (1)
  Yu Baohua (1)
  Tan Qiang (1)
  Xu Yi (2)
  
• 关键词：Slotted screen ; Unconsolidated sand formation ; DPM ; The erosive wear quality ; Production pressure difference
• 刊名：Arabian Journal for Science and Engineering
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：39
• 期：6
• 页码：5237-5243
• 全文大小：
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• 作者单位：Deng Fucheng (1)
  Deng Jingen (1)
  Hu Lianbo (1)
  Yu Baohua (1)
  Tan Qiang (1)
  Xu Yi (2)
  
  1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing, China
  2. Patent Examination Cooperation Center of the Patent Office, SIPO, Beijing, China
  

文摘

Research on the flow low in the slot of the slotted screen used in the unconsolidated sand formation is conducted with computational fluid dynamics method. Research on the erosion and corrosion of the slotted screen is presented with the calculation of flow field and the introduction of erosion model established by the Erosion and Corrosion Research Center of Tula. Moreover, the slot erosion characters and the maximum erosion with different production pressure difference and sand content are given. The result shows that: (1) the maximum value of the flow rate and the erosion appears at the horn mouth of the slotted screen; If the production pressure difference is enlarged, the amount of sand that flows into the inner of the screen will increase and the flow rate of the sand will increase sharply, which worsens the erosion of the screen; (2) the degree of the erosion of the slotted screen grows exponentially with the increase of the production pressure difference and initially increases and then decreases with the increasing of the sand content; the degree of the erosion reaches the peak value when the sand content is ten percent; and (3) the main erosion region is the middle part of the slot, and this region widens with the increasing of production pressure difference. The lower part of the screen is more damaged than the upper part.