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GAS EXPANSION-INDUCED ACCELERATION EFFECT IN HIGH-PRESSURE GAS FLOWS NEAR A WELLBORE

Volumen 15, Edición 4, 2012, pp. 317-328
DOI: 10.1615/JPorMedia.v15.i4.20
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SINOPSIS

In a high-pressure gas well, gas acceleration increases continuously as the gas moves and expands toward the wellbore. This expansion-induced acceleration effect in the linear flow of a high-pressure gas near a wellbore is studied. It is shown that for a given bottomhole flowing pressure, gas acceleration reduces mass flow rate, and for a given mass flow rate, gas acceleration decreases bottomhole flowing pressure. Acceleration steepens the pressure profile near the wellbore. When the bottomhole flowing pressure is decreased to a critical value, the gas mass flow rate reaches a maximum and the flow becomes choked. At choking condition, the gas pressure curve forms a vertical tangent at the wellbore wall and creates an unbounded pressure gradient. A further decrease in the bottomhole flowing pressure induces expansion shocks at the wellbore wall..

CITADO POR
  1. Jiang Hailong, Chen Mian, Jin Yan, Chen Kangping, Importance of Gas Acceleration Near the Wellbore in Radial Compressible Porous Media Flows for a Vertical Gas Well, Transport in Porous Media, 110, 1, 2015. Crossref

  2. Jiang Hailong, Chen Mian, Jin Yan, Chen Kangping, Analytical modeling of acceleration-induced conductivity damage in a propped hydraulic fracture of a high-pressure gas well, Journal of Natural Gas Science and Engineering, 26, 2015. Crossref

  3. Jiang Hailong, Dou Yihua, Xi Zhongchen, Chen Mian, Jin Yan, Microscopic choked flow for a highly compressible gas in porous media, Journal of Natural Gas Science and Engineering, 35, 2016. Crossref

  4. Yuan Jing, Ping Chen Kang, Choked Gas Flow at Pore-Scale and Its Implications to Production From High-Pressure Gas Wells, Journal of Fluids Engineering, 138, 1, 2016. Crossref

  5. Mao Liangjie, Cai Mingjie, Liu Qingyou, Wang Guorong, Dynamical Simulation of High-Pressure Gas Kick in Ultra-Deepwater Riserless Drilling, Journal of Energy Resources Technology, 143, 6, 2021. Crossref

  6. Tian Leng, Wang Hengli, Wu Tao, Yang Haien, Xu Shuwen, Chai Xiaolong, Zhang Kaiqiang, In-depth analysis of ultrasonic-induced geological pore re-structures, Ultrasonics Sonochemistry, 85, 2022. Crossref

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