稠油热采技术现状及发展趋势

Present Situation and Development Trend of Heavy Oil Thermal Recovery Technology

随着油田的开发,热力采油常用的蒸汽吞吐技术表现出采油效率越来越低,亟需新技术以提高产量和采收率。随着稠油储量的不断发现,驱使稠油热采技术的研发热度越来越高,应用规模也不断扩大。目前已经研发出蒸汽吞吐新方法、井底排水技术、水平井蒸汽辅助重力泄油技术等多种热采新技术,并在实践中取得了良好效果。阐述这些技术原理及特点,发现热采技术与工程技术或化学技术相结合,巧妙的结合各自技术的优势,由此可见,热采技术与其他技术的结合是今后热采技术的发展重点。

With the development of oil fields, the production efficiency of steam stimulation technology as a commonly used thermal recovery technology is lower and lower, and new technologies are urgently needed to increase production and recovery. With the continuous discovery of heavy oil reserves, the research and development of heavy oil thermal recovery technology is getting a hot spot, and the application scale is also expanding. Many new technologies such as steam huff and puff, bottom hole drainage technology, horizontal well steam assisted gravity drainage technology have been developed, and have achieved good results in practice. In this paper, the principles and characteristics of these technologies were expounded. It＇s found that the combination of thermal recovery technology and engineering technology or chemical technology is ingenious combination of their respective technical advantages. Therefore, the combination of thermal recovery technology and other technologies is the focus of development of thermal recovery technology in the future.