海洋地质前沿2017，Vol.33Issue(3)：56-65,10.DOI:10.16028/j.1009-2722.2017.03009
南海北部珠江口盆地惠州21-1油田CO2-EOR与碳封存潜力快速评价
QUICK ASSESSMENT OF CO2-EOR AND CO2 SEQUESTRATION POTENTIAL IN HUIZHOU21-1 OILFIELD, PEARL RIVER MOUTH BASIN, NORTHERN SOUTH CHINA SEA
摘要
Abstract
Guangdong Province is one of the biggest CO2 emitters in China.Large CO2 emission sites are mainly distributed along the coast,close to the potential offshore geologic storage sites in the Pearl River Mouth Basin (PRMB).Therefore,it is important for low-carbon economic development in Guangdong Province to assess the potential and feasibility of offshore CO2-Enhanced Oil Recovery (EOR) and carbon storage.Using a quickly screening model for CO2 flooding and storage,the potential of CO2-EOR and storage in Huizhou (HZ) 21-1 oilfield are assessed in this study.The aim is to quickly evaluate CO2-EOR and CO2 storage candidates in 6 oil reservoirs of the HZ21-1 oilfield.The quick-look assessments indicate that:(1) M10,L60 and L40Up would be the more promising reservoirs with higher dimensionless recovery factor (51 ％,51％ and 40 ％ respectively) and shorter breakthrough time than others such as L50,L30 and L40Low;All of these six reservoirs would approximately store 0.8PV (Pore Volume) of CO2;Comprehensively considering the Original Oil In Place (OOIP) and reservoir properties of those more promising reservoirs,M10 would be the most suitable site for CO2-EOR and CO2 storage;(2) In sensitivity analysis,all factors except minimum miscible pressure would have an linear impact on reservoir behavior,and initial oil saturation at the beginning of CO2 injection and injection pressure would significantly affect oil recovery,while CO2 injection pressure would affect breakthrough time and potential on dimensionless CO2 storage.CO2 storage capacity is more sensitive than breakthrough time regarding injection pressure.Hence in general,while initial oil saturation and minimum miscible pressure are constant,higher CO2 injection pressure may increase EOR and carbon storage efficiency.关键词
快速评价模型/CO2-EOR/CO2地质封存/突破时间/HZ21-1油田Key words
quick screening model/CO2-EOR/CO2 geological sequestration/breakthrough time/HZ21-1 oilfield分类
能源科技引用本文复制引用
刘雪雁,李鹏春,周蒂,LU Jiemin,陈广浩..南海北部珠江口盆地惠州21-1油田CO2-EOR与碳封存潜力快速评价[J].海洋地质前沿,2017,33(3):56-65,10.基金项目
国家自然科学基金(41372256) （41372256）
美国能源部项目 （）
