超稠油油藏蒸汽与非凝析气驱油数字化实验

doi:10.7623/syxb201004014

石油学报 ›› 2010, Vol. 31 ›› Issue (4): 602-606.DOI: 10.7623/syxb201004014

超稠油油藏蒸汽与非凝析气驱油数字化实验

纪佑军 1,2 程林松 1 刘其成 3 刘志波 1

1中国石油大学石油工程教育部重点实验室北京 102249； 2西南石油大学建筑工程学院四川成都 610500； 3中国石油辽河油田分公司勘探开发研究院辽宁盘锦 124010

收稿日期:2009-10-06 修回日期:2010-01-16 出版日期:2010-07-25 发布日期:2010-09-25
通讯作者: 纪佑军
作者简介:纪佑军，男，1983年3月生，2007年毕业于武汉工业学院，现为西南石油大学建筑工程学院讲师，主要从事稠油热采及数值模拟研究工作。
基金资助:
国家自然科学基金项目（No.50276040）资助。

Digital experiment on steam and in-condensable gas push for extra heavy oil reservoir

JI Youjun 1,2 CHENG Linsong 1 LIU Qicheng 3 LIU Zhibo 1

Received:2009-10-06 Revised:2010-01-16 Online:2010-07-25 Published:2010-09-25

摘要/Abstract

摘要：

在蒸汽辅助重力驱油（SAGD）工艺物理模拟相似准则的基础上，以辽河油田某区块地质特征为原型建立比例物理模型，进行了蒸汽辅助重力驱油（SAED）与蒸汽与非凝析气驱油（SAGP）物理模拟数字实验。得到了两种工艺开采过程的温度场和生产指标结果，对比分析了其开发效果的优劣，并对SAGP过程注非凝析气的种类进行了优化。研究表明：SAGP过程添加非凝析气后，使得蒸汽腔的横向扩展加快，垂向扩展减缓；SAGP过程能减少蒸汽注入量和热损失，增大热效率，提高油汽比，改善蒸汽辅助重力泄油的开发效果；SAGP过程注二氧化碳的开发效果优于注烟道气，注烟道气优于注氮气；SAGP技术可在提高采收率的同时减少开采过程能量消耗，并有效利用温室气体。

关键词: 超稠油油藏, 蒸汽辅助重力泄油技术, 物理模拟, 蒸汽腔, 蒸汽和非凝析气驱油工艺, 超稠油热采

Abstract:

On the basis of the similarity criterion of steam assisted gravity drainage (SAGD) technology and taking a typical block in Liaohe Oilfield as prototype, a scaled physical model was established. The physical simulations of SAGD and steam and in-condensable gas push (SAGP) technologies were conducted. The expansion of steam chamber and the production indexes of the two technologies were obtained, and the species of in-condensable gas for SAGP technology was optimized. During the injection of in-condensable gas in SAGP process, the vertical expansion speed of steam chamber was slower, but the steam chamber expanded more quickly in the horizontal direction. The quantity of steam and the energy loss were reduced. The heat efficiency and steam-oil ratio were enhanced, and the development performance of SAGD could be improved. The injection efficiency of carbon dioxide in SAGP was better than that of flue gas, and the injection efficiency of flue gas was better than that of nitrogen. The SAGP technology can reduce the energy consumption and the emissions of green house gas in the process of enhanced oil recovery. SAGP technology will be a more promising method for thermal recovery of oilfields.

Key words: extra heavy oil reservoir, steam assisted gravity drainage technology, physical simulation, steam chamber, steam and in-condensable gas push technology, extra heavy oil thermal recovery

纪佑军程林松刘其成刘志波. 超稠油油藏蒸汽与非凝析气驱油数字化实验[J]. 石油学报, 2010, 31(4): 602-606.

JI Youjun CHENG Linsong LIU Qicheng LIU Zhibo. Digital experiment on steam and in-condensable gas push for extra heavy oil reservoir[J]. Editorial office of ACTA PETROLEI SINICA, 2010, 31(4): 602-606.

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超稠油油藏蒸汽与非凝析气驱油数字化实验

Digital experiment on steam and in-condensable gas push for extra heavy oil reservoir

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