深层稠油混合高温蒸汽吞吐工艺参数优化研究与实践  

Optimization of high-temperature mixed steam soaking technology parameters for deep heavy oil and its application

作　　者：裴润有[1,2] 蒲春生[1,3] 吴飞鹏[4] 刘洋[5] 商祥毅[5] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102200 [2]中国石油长庆油田分公司,陕西西安710021 [3]西安石油大学石油工程学院,陕西西安710065 [4]中国石油大学(华东)石油工程学院,山东东营257061 [5]胜利油田分公司孤东采油厂,山东东营257237

出　　处：《西安石油大学学报（自然科学版）》2010年第2期44-47,共4页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项"大型油气田及煤层气开发"(编号:2008ZX05009);国家自然科学基金(编号:50774091)资助

摘　　要：为了提高深层超稠油油藏注蒸汽吞吐热采中地层蒸汽干度及其加热降黏效果,提出了混合高温气吞吐热采工艺技术,即在常规蒸汽吞吐过程中,混入氮气、二氧化碳或烟道气(主要由氮气和二氧化碳组成)等非凝析气体,以有效控制注蒸汽过程中的热损失;并根据汽/液两相流体动力学和热力学原理,建立了深层稠油井混合高温蒸汽吞吐过程中井筒温度梯度、井筒压力梯度、混合流体干度及物性参数等的定量计算数学模型,以对注汽井的井筒动态进行系统分析与控制.以胜利油田孤东GO51X11井为例,发现注汽参数的理论计算结果与实际监测结果具有较好的一致性.In order to increase the dryness and the viscosity reducing effect of stream in the huff and puff recovery technology of heavy oil,the high-temperature mixed steam soaking technology is presented.In the technology,nitrogen,carbon dioxide or flue-gas(mainly composed of nitrogen and carbon dioxide) steam is mixed with steam and injected into reservoir,which can effectively decrease the heat loss in steam injection process.According to the principles of gas /liquid two-phase flow dynamics and thermodynamics,the mathematical models for the quantitative calculation of the steam soaking parameters such as wellbore temperature gradient,wellbore pressure gradient,mixed stream dryness and physical parameters,are established,and they can be used for the analysis and control.Taking GO51X11 well in Gudong Oil Production Plant as an example,it is illustrated that there is a good consistency between the theoretical calculation results and the practically monitoring results.

关 键 词：深层稠油 混合蒸汽吞吐 注汽参数优化计算 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]