双水平井蒸汽辅助重力泄油生产井控制机理与应用

被引:39
作者
钱根宝 [1 ]
马德胜 [2 ]
任香 [1 ]
孙新革 [1 ]
席长丰 [2 ]
机构
[1] 中国石油新疆油田分公司勘探开发研究院
[2] 中国石油勘探开发研究院
关键词
蒸汽辅助重力泄油; 水平井; 蒸汽腔; 汽液界面;
D O I
暂无
中图分类号
TE345 [稠油油田开发];
学科分类号
082002 ;
摘要
结合现场监测资料和解析方法,对双水平井蒸汽辅助重力泄油(SAGD)开采的机理进行了研究。分析表明,在蒸汽腔中,流动以重力泄油为主,压力梯度较低;在注汽井和采油井间汽液界面下的流体流动规律与蒸汽腔中靠重力泄流为主不同,汽液界面下的流动以注汽井和采油井间的压力驱替为主,压力梯度相对较高。在认识采油井压力梯度分布的基础上,运用离散化井筒模型对采油井的汽阻温度(sub-cool)控制进行了优化,并与现场分析结果进行了对比。结果表明,双水平井蒸汽辅助重力泄油采油井的汽阻温度控制在10~15℃为宜。
引用
收藏
页码:147 / 149
页数:3
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