SAGD重油、油砂开采技术的创新进展及思考

发布时间：2018-08-26 17:27

【摘要】：蒸汽辅助重力驱油技术(SAGD)是目前重油、油砂开采中最常用的热采技术之一,相比传统注蒸汽、原位燃烧等技术具有置换稳定、地层接触面积大、驱油效果好、采收率高等优势,同时也存在成本高、蒸汽短循环等问题,为了更好地指导重油、油砂技术创新,开展了基于SAGD技术的新进展研究。详细阐述了基于SAGD的技术创新,即单井SAGD、膨胀溶剂SAGD、泡沫溶剂SAGD、燃烧辅助重力驱及氧添加蒸汽辅助重力驱等5项新技术的原理、创新及优缺点。总结得出,创新一方面是体现在通过井型变化、蒸汽溶剂相结合扩大了蒸汽腔,提高了能量利用率和采收率,另一方面是通过注蒸汽与燃烧法相结合最大限度开采有效能源。基于SAGD技术的创新发展为重油、油砂开发后续技术储备及创新提供了技术借鉴。
[Abstract]:Steam assisted gravity displacement technology (SAGD) is one of the most commonly used thermal recovery technologies in heavy oil and oil sand production. Compared with traditional steam injection and in-situ combustion technology, it has the advantages of stable displacement, large contact area, good oil displacement effect and high recovery. At the same time, there are some problems such as high cost and short steam cycle. In order to better guide the innovation of heavy oil and oil sand technology, a new research based on SAGD technology is carried out. The principle, innovation, advantages and disadvantages of five new techniques based on SAGD, that is, single-well SAGD, expansion solvent SAGD, foam solvent SAGD, combustion assisted gravity drive and oxygen added steam assisted gravity drive, are described in detail. It is concluded that, on the one hand, the innovation lies in the expansion of the steam chamber by the well type change and the combination of steam and solvent, and the improvement of energy utilization and recovery, on the other hand, the maximum exploitation of effective energy through the combination of steam injection and combustion method. The innovation and development based on SAGD technology provide technical reference for heavy oil, oil sand development follow-up technology reserve and innovation.
【作者单位】：中国石化石油工程技术研究院;中国石化集团国际石油勘探开发有限公司;
【基金】：中石化科技部项目“石油工程技术装备发展趋势与战略对策”(编号:P15163) 中国石油化工股份有限公司科研项目“非常规油气工程新技术调研”(编号:YK51403)资助
【分类号】：TE357

【参考文献】