Open AccessImplementing Alternate Polymer flooding to Improve Dry Powder Utilization
Author(s) -
Yuan Yuan
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/295/3/032025
Subject(s) - petroleum engineering , polymer , flooding (psychology) , enhanced oil recovery , oil production , environmental science , polymer solution , viscosity , oil field , materials science , process engineering , geology , engineering , composite material , psychology , psychotherapist
After more than ten years of industrialized production, polymer flooding in Daqing Oilfield has formed a relatively mature matching development technology, and the tertiary oil recovery production mainly by polymer flooding has accounted for about one third of the total oil field. However, in recent years, the problem of increasing the amount of polymer dry powder and worsening the development effect and benefit has become increasingly prominent. In order to improve the development effect of tertiary oil recovery, reduce the cost of tertiary oil recovery and improve the utilization ratio of dry powder, the alternating polymer injection technology for second class reservoir is explored and implemented. By optimizing the parameters of alternating polymer injection, the optimum injection period, viscosity and strength are given quantitatively on the basis of laboratory research and numerical simulation. After application, good results have been achieved. This technology provides technical reserve and practical experience for efficient development of polymer flooding in second class reservoir.