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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2019 Vol.3

    Experimental Research on Optimization of Injection Parameters for SAGD Development in Extra-Heavy Oil
    Author of the article:Zhang Fengyi, Liao Hui, Gao Zhennan, Luo Chengdong, Cui Zheng, Geng Zhigang, Ge Taotao
    Author's Workplace：Bohai Oil Research Institute, CNOOC China Limited Tianjin Branch
    Key Words：Extra-heavy oil; SAGD; Physical modelling; Development method; Injecting fluids; Parameter optimization
    Abstract：SAGD is the main development method for heavy oil.However, severe heat loss is faced up with during the steam injection process, which causes negative development performance.Therefore, to better develop the extra-heavy oil reservoir, injected fluids, and parameters were optimized using long core physical modelling from the geologic characteristics of oilfield D in extra-heavy oil reservoir. And results have indicated that injected steam mixed with some gas likeCO2or N2can better improve the performance of SAGD, with the best injecting fluids temperature being 300℃, steam-gas ratio being 1:3. And the method is suitable for oilfield D, which is also an example for similar oilfields.
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