Lithologic Reservoirs ›› 2009, Vol. 21 ›› Issue (4): 105-107.doi: 10.3969/j.issn.1673-8926.2009.04.021

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The optimization of well patterns of CO2 -flooding for low-permeable reservoir

XIA Weiwei1，WANG Xinhai1，LEI Juanqing2   

  1. 1. College of Geosciences， Yangtze University， Jingzhou 434023， China； 2. Geologic Logging Comany of Dagang Oilfield， PetroChina， Tianjin 300280， China
  • Online:2009-12-16 Published:2009-12-16

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Abstract:

The effects of four flooding patterns（parallel CO2-injection, parallel interval CO2-injection, parallel waterflooding, leaping parallel water-flooding） for low-permeable reservoir by the numerical stimulation are studied. The result shows that the recovery factor of parallel CO2-injection（rowspacing: 300 m, well spacing: 150 m） is more optimal than other patterns. The plan will enhance the recovery factor of low-permeable reservoir.

Key words: Triassic, hydrocarbon accumulation condition, enrichment controlling factors, Oued Mya Basin, Algeria

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