Research on Mechanism of Steam Breakthrough in Steamflooding
Thermal recovery numerical simulation has been performed to get the formation temperature distribution first, and then thermal sweep volume efficiency was computed based on the rheological conversation temperature of heavy oil. Orthogonal numerical simulations have been performed for study on steam breakthrough, it has been shown that high permeable layer and well space and cycles are the major factors to affect the breakthrough, and there is the same tendency for steam breakthrough trend when increasing formation permeability and steam displacement velocity as well as well spacing reduction. There are larger temperature difference for high and middle and lower permeable layer at steam breakthrough, and the steam breakthrough occurs mostly along the major streamline between the injector and producer, and range of volume swept in injection part is lager than the production part. Steam Swept performance will be different for different permeability and thickness product, and for different cycle, and steam injection parameter will have effect on the performance. Swept volume efficiency for high permeable layer presents power law equations vs. well space. Well group L1173 in Jinglou Oilfield was selected to calculate the breakthrough channel volume for profile control design.
Huiqing Liu Hongling Zhang Zhengfu Ning Han Wang Daoxiang Ma Shulin Wang Shucheng Bao
China University of Petroleum(Beijing) China University of Petroleum (Beijing) Henan Oil Field Company, SINOPEC
国际会议
首届世界重油大会(The Technical Sessions of the First World Heavy Oil Conference)
北京
英文
461-469
2006-11-12（万方平台首次上网日期，不代表论文的发表时间）