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针对原始地层压力较高且难于在短期内降压的特稠油油藏,为了研究双水平井SAGD在高压环境下的开发效果,利用高温、高压三维物理模拟系统进行了SAGD物理模拟实验,并分析了在原始地层压力较高的特稠油油藏中进行SAGD生产的各项特征。研究结果表明:与低压环境下的SAGD生产过程相比,在高压环境下蒸汽腔发育过程虽然也分为3个阶段,但是蒸汽腔体积小,横向扩展范围有限;生产过程中没有出现稳产阶段,产油速率和油汽...
氮气辅助SAGD开采技术优化研究
超稠油 顶水油藏 蒸汽超覆 氮气 蒸汽辅助重力泄油(SAGD)
2013/10/22
利用物理模拟及数值模拟方法,研究了在蒸汽辅助重力泄油(SAGD)过程中添加氮气提高顶水超稠油油藏开发效果的生产机理,主要包括:形成隔热层,降低热损失,提高热效率;维持系统压力,改善流度比;降低原油黏度,提高流动能力.优选出了氮气注入方式、氮气与蒸汽比和氮气总注入量.研究结果表明,氮气辅助SAGD开采技术在杜84块馆陶油层开采中是可行的,有利于蒸汽腔的侧向扩展,增加蒸汽的横向波及体积;在SAGD过程...
Oil Sands Development in Canada with the SAGD Technology-Past, Present and Future-
Canada SAGD bitumen oil sands horizontal wells steam-oil ratio
2009/4/27
The amount of proven reserves of oil sands in Canada is estimated to be 175 billion barrels, placing the deposit second in the world in size. Even if the production increases to the same peak level a...
Geological modeling of the oil sands reservoir by integrating the borehole and seismic data in the JACOS Hangingstone SAGD operation area, Athabasca, Canada.
oil sands SAGD geological model sequence analysis acoustic impedance inversion
2009/4/24
Three dimensional geological models were constructed in the JACOS Hangingstone SAGD operation area, Alberta, Canada, integrating three dimensional seismic data of 5.4 square kilometers and 76 well d...