英买7-19凝析气藏反凝析伤害因素研究

Journal of Oil and Gas Technology(2008)

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Abstract
凝析气藏液相伤害是气井产能下降的主要原因,它包括地层反凝析液伤害与外来流体伤害。研究采用英买7-19凝析气藏凝析油、地层水、凝析水等,定量评价不同液相介质对凝析气藏的污染损害程度,对比研究了地层(岩心)渗透率、毛细凝聚作用、毛管压力、孔隙介质吸附作用及岩石润湿性对反凝析伤害的影响程度。结果表明,孔隙介质吸附是该凝析气藏反凝析伤害的主要因素,毛细凝聚作用、毛管压力、以及润湿性对反凝析的影响甚微。
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