海上深层块状特稠油SAGD开发参数优化研究
Experimental Research on Optimization of Injection Parameters for SAGD Development in Extra-Heavy Oil
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- 引用格式:
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张风义,廖,辉,高振南,罗成栋,崔,政,耿志刚,葛涛涛.海上深层块状特稠油SAGD开发参数优化研究[J].天然气与石油,2019,37(3):0.doi:
Zhang Fengyi, Liao Hui, Gao Zhennan, Luo Chengdong, Cui Zheng, Geng Zhigang, Ge Taotao.Experimental Research on Optimization of Injection Parameters for SAGD Development in Extra-Heavy Oil [J].Natural Gas and Oil,2019,37(3):0.doi:
- DOI:
- 作者:
- 张风义 廖 辉 高振南 罗成栋 崔 政 耿志刚 葛涛涛
Zhang Fengyi, Liao Hui, Gao Zhennan, Luo Chengdong, Cui Zheng, Geng Zhigang, Ge Taotao
- 作者单位:
- 中海石油(中国)有限公司天津分公司渤海石油研究院
Bohai Oil Research Institute, CNOOC China Limited Tianjin Branch
- 关键词:
- 特稠油;SAGD;物理模拟;开发方式;注入介质;参数优化
Extra-heavy oil; SAGD; Physical modelling; Development method; Injecting fluids; Parameter optimization
- 摘要:
蒸汽辅助重力泄油(SAGD)是稠油油藏开发的有效技术,但由于实施过程中蒸汽热损失较严重,开发经济效益受到影响。为高效地开发这类油藏,模拟特稠油油藏D油田的地质特点制备长岩心，并采用油田实际原油开展了注入介质优选和注入参数优化驱替室内实验研究。结果表明,蒸汽中复合注入一定量的N2+CO2可有效改善开发效果,最优复合比例为1∶3。该研究为D油田开发决策提供了依据。
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.
