非等温溶解气驱流入动态研究

INFLOW PERFORMANCE RELATIONSHIP FOR NON-ISOTHERMAL DISSOLVED GAS DRIVE RESERVOIR

张红玲 刘慧卿 张琪 吴刚

石油大学石油工程系, 山东东营 257061 华北油田采油四厂, 河北廊坊 065001

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。

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.

10.3969/j.issn.1000-7393.2001.04.016