台兴油田阜三段油藏CO_2驱油最低混相压力确定实验研究
Experimental study of CO_2 mininum miscible flooding pressure in F3 section reservoir in Taixing oilfield
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摘要: 利用细管实验装置,考虑了多次接触混相物理化学过程的阶段性和机理的复杂性,进行注二氧化碳驱替实验,得到了台兴油田兴1井油藏流体在二氧化碳驱油过程中的压力、采收率和相态变化的重要参数,确定了台兴油田阜三段油藏的最低混相压力为22.11MPa。Abstract: Using thin tube experimental equipment,considering its physical and chemical processes of numerous miscible flood-ing and its mechanical complex,carrying out carbon dioxide injection displacement experiment,Taixing oilfield Xing 1 well reservoir fluids pressure in the process of carbon dioxide flooding,oil recovery and important parameters of phrasechange has been achieved,which determined the minimum miscible pressure is 22. 11 MPa.