摘要
通过分析蒸汽吞吐水平井的油层受热复合扩展特征 ,建立了受热区体积和平均温度的加权计算模式 ,并以非稳态水侵理论为基础 ,推导出冷 /热界面处的油层压力和受热区内流体饱和度计算模型。以草平 1井为例 ,计算出第一吞吐周期的生产动态变化 ,并对实测值和数值模拟结果进行了对比分析 ,计算结果表明 ,本文提出的复合油藏生产动态不稳定分析方法适用于早期生产动态为强非稳态 。
The weighted calculation model of heated formation volume and its average temperature has been built based on the composite reservoir shape after steam stimulation. Interface pressure formulae between heated and unheated area has been given based on the transient influx theory. Fluid saturation in heated area can be gotten from material balance equation. This method has been used in Caoping 1 well in Shengli oil field. The results show this method matches with field data and the data from reservoir numerical simulation. The method is practical to multi cycle steam stimulation performance.
出处
《石油钻探技术》
CAS
2002年第1期56-58,共3页
Petroleum Drilling Techniques
关键词
石油开采
蒸汽吞吐
水平井
稠油油藏
稠油开采
水侵
动态分析
数学模型
产能预测
Steam soaking
horizontal well
viscous oil reservoir
viscous oil recovery
water invasion
performance analysis
mathematical model
productivity forecast
