非等温溶解气驱流入动态研究
INFLOW PERFORMANCE RELATIONSHIP FOR NON-ISOTHERMAL DISSOLVED GAS DRIVE RESERVOIR
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摘要: 以蒸汽吞吐复合油层模式为基础,建立了非等温渗流条件下的油井相对采油指数瞬态递减模式,分析得知:加热范围、加热区温度和蒸汽吞吐解堵作用是影响流入动态的主要因素;通过计算拟稳态条件下复合油层油气两相渗流动态,得到了非等温溶解气驱流入动态关系,其综合流入动态特征涵盖了等温渗流条件下的流入动态,因此也适用于常规生产井的产能预测。Abstract: Relative production index model for steam stimulation well has been promoted based on composite forma- tion.It has been shown that area-heated and its average temperature are major factor to affect on relative production index. Inflow Performance Relationship(IPR) for dissolved gas drive formation with steam stimulation has been built under pseudo-steady state, the IPR is comprehensive and it can overlap isothermal IPR when relative production index is unity.
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