西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (1): 87-90.DOI: 10.3863/j.issn.1674-5086.2009.01.022

• 石油与天然气工程 • Previous Articles     Next Articles

LABORATORY RESEARCH ON PROFILE ADJUSTMMENT AND OIL DISPLACEMENT EFFICIENCY OF

PU Wan-fen1 PENG Tao-jun2 JIN Fa-yang1 YIN Xiao-yu1 YANG Han3   

  1. 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University,Chengdu Sichuan 610500,China；2.Drilling & Production Technology Research Institute，CNPC Sichuan-Changqing United Drilling & Exploration Engineering Company，Guanghan Sichuan 618300，China；3.Geophysical Company，CNPC Sichuan-Changqing United Drilling & Exploration Engineering Company，Chengdu Sichuan 610000，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-20 Published:2009-02-20

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Abstract:

"2+3" oil recovery technology can be brought forward because it can enhance the sweep efficiency of water drive reservoir and the wash oil efficiency,the technology integrates the virtue of profile adjustment and chemical flooding.In mechanism,"2+3" oil recovery technology consummates the shortage of secondary oil recovery and reduces the high investment and the high risk which the single chemical flooding brings,which offers the new thought and method for the effective exploitation of oil field.In order to research the oil displacement efficiency and the EOR effect of "2+3" oil recovery technology,by the way of laboratory rock flow experiment,the profile adjustment efficiency,the oil displacement efficiency and the EOR effect of "2+3" oil recovery technology are researched respectively.After analyzing their experimental results synthetically,it is revealed that the EOR effect of "2+3" oil recovery technology is better.

Key words: profile adjustment, oil displacement efficiency, recovery ratio, oil recovery technology, high water cut stage

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