Ocean Engineering Equipment and Technology ›› 2015, Vol. 2 ›› Issue (2): 105-110.

• Orginal Article • Previous Articles     Next Articles

CO2 Storage Scenario for Dongfang Gas Field Terminal

Zhi-jun LI1, Xi-chong YU2, Yu-xing LI3, Qing WANG2, Bing CHENG2   

  1. 1. CNOOC Uganda Limited, Beijing 100010, China
    2. CNOOC Research Institute, Beijing 100028, China
    3. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266555, China
  • Received:2015-03-09 Online:2015-04-10 Published:2016-03-30


The available CO2 volume in Dongfang gas reservoir is rather abundant, which brings an important problem, that is, how to bury the CO2 to realize CO2 emission reduction. According to the specific situation of Dongfang gas field terminal, four schemes to recycle CO2 are proposed, including burying on site onshore or offshore and injecting in Weizhou oil field or Bohai oil field for enhancing oil recovery (EOR). On that basis, four utilization programs, all of which include treatment, liquefaction, transportation and burying of CO2, are put forward. Finally, process calculation, apparatus selection and economic analysis are developed for every scheme. Results show that the first scheme (onshore local storage near Dongfang gas field terminal) possesses the least investment, but no profit. The fourth scheme [EOR/enhancing gas recovery (EOR/EGR) in Bohai Gulf] takes the largest investment. The investment of the second scheme (EGR in Dongfang 1-1 gas field) is less than that of the third scheme (EGR/EOR in Weizhou 12-1 platform). EGR/EOR can always get profit. The optimum scheme should be determined by economic evaluation.

Key words: CO2, treatment, storage, economic evaluation, enhancing recovery

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